From ec448a0a361ce3fa97a32a5c267a680163ffe8c5 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Tue, 18 Apr 2006 09:05:39 -0700 Subject: [SCSI] srp.h: avoid padding of structs Several structs in get padded to a multiple of 8 bytes on 64-bit architectures and end up with a size that does not match the definition in the SRP spec: SRP spec 64-bit sizeof (struct indirect_buf) 20 24 sizeof (struct srp_login_rsp) 52 56 sizeof (struct srp_rsp) 36 40 Fix this by adding __attribute__((packed)) to the offending structs. Problem pointed out by Arne Redlich . Signed-off-by: Roland Dreier Signed-off-by: James Bottomley --- include/scsi/srp.h | 23 +++++++++++++++++------ 1 file changed, 17 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/scsi/srp.h b/include/scsi/srp.h index 6c2681dc5b4..637f77eccf0 100644 --- a/include/scsi/srp.h +++ b/include/scsi/srp.h @@ -95,14 +95,15 @@ struct srp_direct_buf { /* * We need the packed attribute because the SRP spec puts the list of - * descriptors at an offset of 20, which is not aligned to the size - * of struct srp_direct_buf. + * descriptors at an offset of 20, which is not aligned to the size of + * struct srp_direct_buf. The whole structure must be packed to avoid + * having the 20-byte structure padded to 24 bytes on 64-bit architectures. */ struct srp_indirect_buf { struct srp_direct_buf table_desc; __be32 len; - struct srp_direct_buf desc_list[0] __attribute__((packed)); -}; + struct srp_direct_buf desc_list[0]; +} __attribute__((packed)); enum { SRP_MULTICHAN_SINGLE = 0, @@ -122,6 +123,11 @@ struct srp_login_req { u8 target_port_id[16]; }; +/* + * The SRP spec defines the size of the LOGIN_RSP structure to be 52 + * bytes, so it needs to be packed to avoid having it padded to 56 + * bytes on 64-bit architectures. + */ struct srp_login_rsp { u8 opcode; u8 reserved1[3]; @@ -132,7 +138,7 @@ struct srp_login_rsp { __be16 buf_fmt; u8 rsp_flags; u8 reserved2[25]; -}; +} __attribute__((packed)); struct srp_login_rej { u8 opcode; @@ -207,6 +213,11 @@ enum { SRP_RSP_FLAG_DIUNDER = 1 << 5 }; +/* + * The SRP spec defines the size of the RSP structure to be 36 bytes, + * so it needs to be packed to avoid having it padded to 40 bytes on + * 64-bit architectures. + */ struct srp_rsp { u8 opcode; u8 sol_not; @@ -221,6 +232,6 @@ struct srp_rsp { __be32 sense_data_len; __be32 resp_data_len; u8 data[0]; -}; +} __attribute__((packed)); #endif /* SCSI_SRP_H */ -- cgit v1.2.3 From 68ac64cd3fd89fdaa091701f6ab98a9065e9b1b5 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 30 Apr 2006 11:13:50 +0100 Subject: [SERIAL] Clean up serial locking when obtaining a reference to a port The locking for the uart_port is over complicated, and can be simplified if we introduce a flag to indicate that a port is "dead" and will be removed. This also helps the validator because it removes a case of non-nested unlock ordering. Signed-off-by: Russell King Signed-off-by: Ingo Molnar Signed-off-by: Andrew Morton --- include/linux/serial_core.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index c32e60e79de..bd14858121e 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -254,6 +254,7 @@ struct uart_port { #define UPF_CONS_FLOW ((__force upf_t) (1 << 23)) #define UPF_SHARE_IRQ ((__force upf_t) (1 << 24)) #define UPF_BOOT_AUTOCONF ((__force upf_t) (1 << 28)) +#define UPF_DEAD ((__force upf_t) (1 << 30)) #define UPF_IOREMAP ((__force upf_t) (1 << 31)) #define UPF_CHANGE_MASK ((__force upf_t) (0x17fff)) -- cgit v1.2.3 From 913ed41eb5c948d2f8b5deffd29c2638eceef3d7 Mon Sep 17 00:00:00 2001 From: Jon Mason Date: Wed, 3 May 2006 17:26:58 -0500 Subject: [IA64] remove asm-ia64/bitops.h self-inclusion asm-ia64/bitops.h includes itself. The #ifndef _ASM_IA64_BITOPS_H prevents this from being an issue, but it should still be removed. Signed-off-by: Jon Mason Signed-off-by: Tony Luck --- include/asm-ia64/bitops.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/asm-ia64/bitops.h b/include/asm-ia64/bitops.h index 90921e16279..6cc517e212a 100644 --- a/include/asm-ia64/bitops.h +++ b/include/asm-ia64/bitops.h @@ -11,7 +11,6 @@ #include #include -#include #include /** -- cgit v1.2.3 From d57336e3f2dd7c2d1fbe4a8323029869fb6e1f00 Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Sun, 30 Apr 2006 22:09:07 +0100 Subject: [PATCH] softmac: make non-operational after being stopped zd1211 with softmac and wpa_supplicant revealed an issue with softmac and the use of workqueues. Some of the work functions actually reschedule themselves, so this meant that there could still be pending work after flush_scheduled_work() had been called during ieee80211softmac_stop(). This patch introduces a "running" flag which is used to ensure that rescheduling does not happen in this situation. I also used this flag to ensure that softmac's hooks into ieee80211 are non-operational once the stop operation has been started. This simply makes softmac a little more robust, because I could crash it easily by receiving frames in the short timeframe after shutting down softmac and before turning off the ZD1211 radio. (ZD1211 is now fixed as well!) Signed-off-by: Daniel Drake Acked-by: Johannes Berg Signed-off-by: John W. Linville --- include/net/ieee80211softmac.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/net/ieee80211softmac.h b/include/net/ieee80211softmac.h index b1ebfbae397..052ed596a4e 100644 --- a/include/net/ieee80211softmac.h +++ b/include/net/ieee80211softmac.h @@ -204,7 +204,8 @@ struct ieee80211softmac_device { /* couple of flags */ u8 scanning:1, /* protects scanning from being done multiple times at once */ - associated:1; + associated:1, + running:1; struct ieee80211softmac_scaninfo *scaninfo; struct ieee80211softmac_assoc_info associnfo; -- cgit v1.2.3 From f21709d70ad6d7ad50288f7056c3a368138b017c Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Thu, 4 May 2006 19:47:19 +0200 Subject: [PATCH] ieee80211: Fix A band channel count (resent) The channel count for 802.11a is still not right. We better compute it from the min and max channel numbers, rather than hardcoding it. Signed-off-by: Jean Delvare Signed-off-by: John W. Linville --- include/net/ieee80211.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/net/ieee80211.h b/include/net/ieee80211.h index 4725ff861c5..d5926bfb1fc 100644 --- a/include/net/ieee80211.h +++ b/include/net/ieee80211.h @@ -955,11 +955,13 @@ enum ieee80211_state { #define IEEE80211_24GHZ_MIN_CHANNEL 1 #define IEEE80211_24GHZ_MAX_CHANNEL 14 -#define IEEE80211_24GHZ_CHANNELS 14 +#define IEEE80211_24GHZ_CHANNELS (IEEE80211_24GHZ_MAX_CHANNEL - \ + IEEE80211_24GHZ_MIN_CHANNEL + 1) #define IEEE80211_52GHZ_MIN_CHANNEL 34 #define IEEE80211_52GHZ_MAX_CHANNEL 165 -#define IEEE80211_52GHZ_CHANNELS 131 +#define IEEE80211_52GHZ_CHANNELS (IEEE80211_52GHZ_MAX_CHANNEL - \ + IEEE80211_52GHZ_MIN_CHANNEL + 1) enum { IEEE80211_CH_PASSIVE_ONLY = (1 << 0), -- cgit v1.2.3 From 1498221d51a43d5fa1a580618591497d90f957d9 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Sat, 6 May 2006 17:55:11 -0700 Subject: [CLASS DEVICE]: add attribute_group creation Extend the support of attribute groups in class_device's to allow groups to be created as part of the registration process. This allows network device's to avoid race between registration and creating groups. Note that unlike attributes that are a property of the class object, the groups are a property of the class_device object. This is done because there are different types of network devices (wireless for example). Signed-off-by: Stephen Hemminger Signed-off-by: Greg Kroah-Hartman Signed-off-by: David S. Miller --- include/linux/device.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/device.h b/include/linux/device.h index f6e72a65a3f..e8e53b9accc 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -200,6 +200,7 @@ extern int class_device_create_file(struct class_device *, * @node: for internal use by the driver core only. * @kobj: for internal use by the driver core only. * @devt_attr: for internal use by the driver core only. + * @groups: optional additional groups to be created * @dev: if set, a symlink to the struct device is created in the sysfs * directory for this struct class device. * @class_data: pointer to whatever you want to store here for this struct @@ -228,6 +229,7 @@ struct class_device { struct device * dev; /* not necessary, but nice to have */ void * class_data; /* class-specific data */ struct class_device *parent; /* parent of this child device, if there is one */ + struct attribute_group ** groups; /* optional groups */ void (*release)(struct class_device *dev); int (*uevent)(struct class_device *dev, char **envp, -- cgit v1.2.3 From fe9925b551a95fae6ec61470c79f8b701a2fe928 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Sat, 6 May 2006 17:56:03 -0700 Subject: [NET]: Create netdev attribute_groups with class_device_add Atomically create attributes when class device is added. This avoids the race between registering class_device (which generates hotplug event), and the creation of attribute groups. Signed-off-by: Stephen Hemminger Signed-off-by: Greg Kroah-Hartman Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 01db7b88a2b..309f9190a92 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -506,6 +506,8 @@ struct net_device /* class/net/name entry */ struct class_device class_dev; + /* space for optional statistics and wireless sysfs groups */ + struct attribute_group *sysfs_groups[3]; }; #define NETDEV_ALIGN 32 -- cgit v1.2.3 From 216251cff98838f2b79c53fc8a9e76884944be7d Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Sun, 7 May 2006 18:56:27 +0100 Subject: [ARM] 3501/1: i.MX: fix lowlevel debug macros Patch from Sascha Hauer This patch fixes the addruart macro to work with both mmu enabled and disabled. Signed-off-by: Sascha Hauer Signed-off-by: Russell King --- include/asm-arm/arch-imx/debug-macro.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-arm/arch-imx/debug-macro.S b/include/asm-arm/arch-imx/debug-macro.S index 83f552f7bcc..c611871643a 100644 --- a/include/asm-arm/arch-imx/debug-macro.S +++ b/include/asm-arm/arch-imx/debug-macro.S @@ -16,7 +16,7 @@ tst \rx, #1 @ MMU enabled? moveq \rx, #0x00000000 @ physical movne \rx, #0xe0000000 @ virtual - orr \rx, \rx, #0x00200000 + orreq \rx, \rx, #0x00200000 @ physical orr \rx, \rx, #0x00006000 @ UART1 offset .endm -- cgit v1.2.3 From 201be92a4243e58bcc6c0878489bcc2aaaf51c80 Mon Sep 17 00:00:00 2001 From: Bellido Nicolas Date: Sun, 7 May 2006 22:49:22 +0100 Subject: [ARM] 3505/1: aaec2000: entry-macro.S needs asm/arch/irqs.h Patch from Bellido Nicolas Since git commit 2b78838842346da390e8547cd37035184376d506, entry-macro.S needs to include asm/arch/irqs.h Signed-off-by: Nicolas Bellido Signed-off-by: Russell King --- include/asm-arm/arch-aaec2000/entry-macro.S | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/asm-arm/arch-aaec2000/entry-macro.S b/include/asm-arm/arch-aaec2000/entry-macro.S index df31313ab07..1eb3503bd16 100644 --- a/include/asm-arm/arch-aaec2000/entry-macro.S +++ b/include/asm-arm/arch-aaec2000/entry-macro.S @@ -10,6 +10,7 @@ * published by the Free Software Foundation. * */ +#include .macro disable_fiq .endm -- cgit v1.2.3 From 9a708becafe99fa32211e8c53dbacefdb4b11718 Mon Sep 17 00:00:00 2001 From: Bellido Nicolas Date: Sun, 7 May 2006 22:49:23 +0100 Subject: [ARM] 3506/1: aaec2000: debug-macro.S needs hardware.h Patch from Bellido Nicolas Include hardware.h in debug-macro.S, otherwise io_p2v is undefined. Signed-off-by: Nicolas Bellido Signed-off-by: Russell King --- include/asm-arm/arch-aaec2000/debug-macro.S | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/asm-arm/arch-aaec2000/debug-macro.S b/include/asm-arm/arch-aaec2000/debug-macro.S index e4f1fa539a7..7b1fce021d8 100644 --- a/include/asm-arm/arch-aaec2000/debug-macro.S +++ b/include/asm-arm/arch-aaec2000/debug-macro.S @@ -9,6 +9,7 @@ * published by the Free Software Foundation. */ +#include "hardware.h" .macro addruart,rx mrc p15, 0, \rx, c1, c0 tst \rx, #1 @ MMU enabled? -- cgit v1.2.3 From e0c1e9bf81badc7ba59e120d6218101903d5d103 Mon Sep 17 00:00:00 2001 From: Kimball Murray Date: Mon, 8 May 2006 15:17:16 +0200 Subject: [PATCH] x86_64: avoid IRQ0 ioapic pin collision The patch addresses a problem with ACPI SCI interrupt entry, which gets re-used, and the IRQ is assigned to another unrelated device. The patch corrects the code such that SCI IRQ is skipped and duplicate entry is avoided. Second issue came up with VIA chipset, the problem was caused by original patch assigning IRQs starting 16 and up. The VIA chipset uses 4-bit IRQ register for internal interrupt routing, and therefore cannot handle IRQ numbers assigned to its devices. The patch corrects this problem by allowing PCI IRQs below 16. Cc: len.brown@intel.com Signed-off by: Natalie Protasevich Signed-off-by: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-i386/io_apic.h | 1 + include/asm-x86_64/io_apic.h | 1 + 2 files changed, 2 insertions(+) (limited to 'include') diff --git a/include/asm-i386/io_apic.h b/include/asm-i386/io_apic.h index 51c4e5fe606..d92e253f7f6 100644 --- a/include/asm-i386/io_apic.h +++ b/include/asm-i386/io_apic.h @@ -200,6 +200,7 @@ extern int io_apic_get_unique_id (int ioapic, int apic_id); extern int io_apic_get_version (int ioapic); extern int io_apic_get_redir_entries (int ioapic); extern int io_apic_set_pci_routing (int ioapic, int pin, int irq, int edge_level, int active_high_low); +extern int timer_uses_ioapic_pin_0; #endif /* CONFIG_ACPI */ extern int (*ioapic_renumber_irq)(int ioapic, int irq); diff --git a/include/asm-x86_64/io_apic.h b/include/asm-x86_64/io_apic.h index ee1bc69aec9..52484e82c64 100644 --- a/include/asm-x86_64/io_apic.h +++ b/include/asm-x86_64/io_apic.h @@ -205,6 +205,7 @@ extern int skip_ioapic_setup; extern int io_apic_get_version (int ioapic); extern int io_apic_get_redir_entries (int ioapic); extern int io_apic_set_pci_routing (int ioapic, int pin, int irq, int, int); +extern int timer_uses_ioapic_pin_0; #endif extern int sis_apic_bug; /* dummy */ -- cgit v1.2.3 From ac71d12c990526b01ef6cfe50907ef8530a30331 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Mon, 8 May 2006 15:17:28 +0200 Subject: [PATCH] x86_64: Avoid EBDA area in early boot allocator Based on analysis&patch from Robert Hentosch Observed on a Dell PE6850 with 16GB The problem occurs very early on, when the kernel allocates space for the temporary memory map called bootmap. The bootmap overlaps the EBDA region. EBDA region is not historically reserved in the e820 mapping. When the bootmap is freed it marks the EBDA region as usable. If you notice in setup.c there is already code to work around the EBDA in reserve_ebda_region(), this check however occurs after the bootmap is allocated and doesn't prevent the bootmap from using this range. AK: I redid the original patch. Thanks also to Jan Beulich for spotting some mistakes. Cc: Robert_Hentosch@dell.com Cc: jbeulich@novell.com Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- include/asm-x86_64/e820.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/asm-x86_64/e820.h b/include/asm-x86_64/e820.h index 93b51df5168..670a3388e70 100644 --- a/include/asm-x86_64/e820.h +++ b/include/asm-x86_64/e820.h @@ -59,6 +59,8 @@ extern void __init parse_memopt(char *p, char **end); extern void __init parse_memmapopt(char *p, char **end); extern struct e820map e820; + +extern unsigned ebda_addr, ebda_size; #endif/*!__ASSEMBLY__*/ #endif/*__E820_HEADER*/ -- cgit v1.2.3 From d324031245abbb54e4e0321004430826052b6c37 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Mon, 8 May 2006 15:11:26 -0700 Subject: sky2: backout NAPI reschedule This is a backout of earlier patch. The whole rescheduling hack was a bad idea. It doesn't really solve the problem and it makes the code more complicated for no good reason. Signed-off-by: Stephen Hemminger --- include/linux/netdevice.h | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 309f9190a92..a461b51d607 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -831,21 +831,19 @@ static inline void netif_rx_schedule(struct net_device *dev) __netif_rx_schedule(dev); } - -static inline void __netif_rx_reschedule(struct net_device *dev, int undo) -{ - dev->quota += undo; - list_add_tail(&dev->poll_list, &__get_cpu_var(softnet_data).poll_list); - __raise_softirq_irqoff(NET_RX_SOFTIRQ); -} - -/* Try to reschedule poll. Called by dev->poll() after netif_rx_complete(). */ +/* Try to reschedule poll. Called by dev->poll() after netif_rx_complete(). + * Do not inline this? + */ static inline int netif_rx_reschedule(struct net_device *dev, int undo) { if (netif_rx_schedule_prep(dev)) { unsigned long flags; + + dev->quota += undo; + local_irq_save(flags); - __netif_rx_reschedule(dev, undo); + list_add_tail(&dev->poll_list, &__get_cpu_var(softnet_data).poll_list); + __raise_softirq_irqoff(NET_RX_SOFTIRQ); local_irq_restore(flags); return 1; } -- cgit v1.2.3 From e4de00215c3af02116db3d486bf53700dfe10619 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Tue, 9 May 2006 16:00:59 +1000 Subject: powerpc/32: Define an is_kernel_addr() to fix ARCH=ppc compilation My commit 6bfd93c32a5065d0e858780b3beb0b667081601c broke the ARCH=ppc compilation by using the is_kernel_addr() macro in asm/uaccess.h. This fixes it by defining a suitable is_kernel_addr() for ARCH=ppc. Signed-off-by: Paul Mackerras --- include/asm-ppc/page.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/asm-ppc/page.h b/include/asm-ppc/page.h index a70ba2ee552..0fb68a0b018 100644 --- a/include/asm-ppc/page.h +++ b/include/asm-ppc/page.h @@ -20,6 +20,7 @@ /* This must match what is in arch/ppc/Makefile */ #define PAGE_OFFSET CONFIG_KERNEL_START #define KERNELBASE PAGE_OFFSET +#define is_kernel_addr(x) ((x) >= PAGE_OFFSET) #ifndef __ASSEMBLY__ -- cgit v1.2.3 From b17a7c179dd3ce7d04373fddf660eda21efc9db9 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Wed, 10 May 2006 13:21:17 -0700 Subject: [NET]: Do sysfs registration as part of register_netdevice. The last step of netdevice registration was being done by a delayed call, but because it was delayed, it was impossible to return any error code if the class_device registration failed. Side effects: * one state in registration process is unnecessary. * register_netdevice can sleep inside class_device registration/hotplug * code in netdev_run_todo only does unregistration so it is simpler. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- include/linux/netdevice.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index a461b51d607..f4169bbb60e 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -433,8 +433,7 @@ struct net_device /* register/unregister state machine */ enum { NETREG_UNINITIALIZED=0, - NETREG_REGISTERING, /* called register_netdevice */ - NETREG_REGISTERED, /* completed register todo */ + NETREG_REGISTERED, /* completed register_netdevice */ NETREG_UNREGISTERING, /* called unregister_netdevice */ NETREG_UNREGISTERED, /* completed unregister todo */ NETREG_RELEASED, /* called free_netdev */ -- cgit v1.2.3 From 4c1b46226ce4424a93b8ac544e37afb26c8a72c6 Mon Sep 17 00:00:00 2001 From: Francois Romieu Date: Wed, 10 May 2006 12:48:57 -0700 Subject: dl2k: use DMA_48BIT_MASK constant Typo will be harder with this one. Signed-off-by: Francois Romieu Signed-off-by: Stephen Hemminger --- include/linux/dma-mapping.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index ff61817082f..635690cf3e3 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -14,6 +14,7 @@ enum dma_data_direction { }; #define DMA_64BIT_MASK 0xffffffffffffffffULL +#define DMA_48BIT_MASK 0x0000ffffffffffffULL #define DMA_40BIT_MASK 0x000000ffffffffffULL #define DMA_39BIT_MASK 0x0000007fffffffffULL #define DMA_32BIT_MASK 0x00000000ffffffffULL -- cgit v1.2.3 From bd89efc532fe41f867f848144cc8b42054ddf6f9 Mon Sep 17 00:00:00 2001 From: Simon Kelley Date: Fri, 12 May 2006 14:56:08 -0700 Subject: [NEIGH]: Fix IP-over-ATM and ARP interaction. The classical IP over ATM code maintains its own IPv4 <-> ARP table, using the standard neighbour-table code. The neigh_table_init function adds this neighbour table to a linked list of all neighbor tables which is used by the functions neigh_delete() neigh_add() and neightbl_set(), all called by the netlink code. Once the ATM neighbour table is added to the list, there are two tables with family == AF_INET there, and ARP entries sent via netlink go into the first table with matching family. This is indeterminate and often wrong. To see the bug, on a kernel with CLIP enabled, create a standard IPv4 ARP entry by pinging an unused address on a local subnet. Then attempt to complete that entry by doing ip neigh replace lladdr nud reachable Looking at the ARP tables by using ip neigh show will reveal two ARP entries for the same address. One of these can be found in /proc/net/arp, and the other in /proc/net/atm/arp. This patch adds a new function, neigh_table_init_no_netlink() which does everything the neigh_table_init() does, except add the table to the netlink all-arp-tables chain. In addition neigh_table_init() has a check that all tables on the chain have a distinct address family. The init call in clip.c is changed to call neigh_table_init_no_netlink(). Since ATM ARP tables are rather more complicated than can currently be handled by the available rtattrs in the netlink protocol, no functionality is lost by this patch, and non-ATM ARP manipulation via netlink is rescued. A more complete solution would involve a rtattr for ATM ARP entries and some way for the netlink code to give neigh_add and friends more information than just address family with which to find the correct ARP table. [ I've changed the assertion checking in neigh_table_init() to not use BUG_ON() while holding neigh_tbl_lock. Instead we remember that we found an existing tbl with the same family, and after dropping the lock we'll give a diagnostic kernel log message and a stack dump. -DaveM ] Signed-off-by: Simon Kelley Signed-off-by: David S. Miller --- include/net/neighbour.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/net/neighbour.h b/include/net/neighbour.h index b0666d66293..4901ee44687 100644 --- a/include/net/neighbour.h +++ b/include/net/neighbour.h @@ -211,6 +211,7 @@ struct neigh_table #define NEIGH_UPDATE_F_ADMIN 0x80000000 extern void neigh_table_init(struct neigh_table *tbl); +extern void neigh_table_init_no_netlink(struct neigh_table *tbl); extern int neigh_table_clear(struct neigh_table *tbl); extern struct neighbour * neigh_lookup(struct neigh_table *tbl, const void *pkey, -- cgit v1.2.3 From cd41e28e2d0f198ad56840bf8ba13cb41b129bab Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Sun, 9 Apr 2006 15:43:41 -0300 Subject: V4L/DVB (3774): Create V4L1 config options V4L1 API is depreciated and should be removed soon from kernel. This patch adds two new options, one to disable V4L1 drivers, and another to disable V4L1 compat module. This way, it would be easy to check what still depends on V4L1 stuff, allowing also to test if app works fine with V4L2 only support. Signed-off-by: Mauro Carvalho Chehab --- include/linux/videodev2.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index d7670ec1ec1..ad7fa9c86c1 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -1141,8 +1141,13 @@ extern char *v4l2_type_names[]; /* Compatibility layer interface -- v4l1-compat module */ typedef int (*v4l2_kioctl)(struct inode *inode, struct file *file, unsigned int cmd, void *arg); + +#ifdef CONFIG_VIDEO_V4L1_COMPAT int v4l_compat_translate_ioctl(struct inode *inode, struct file *file, int cmd, void *arg, v4l2_kioctl driver_ioctl); +#else +#define v4l_compat_translate_ioctl(inode,file,cmd,arg,ioctl) -EINVAL +#endif /* 32 Bits compatibility layer for 64 bits processors */ extern long v4l_compat_ioctl32(struct file *file, unsigned int cmd, -- cgit v1.2.3 From 986733e01d258c26107f1da9d8d47c718349ad2f Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Mon, 15 May 2006 09:43:58 -0700 Subject: [PATCH] RCU: introduce rcu_needs_cpu() interface With "Paul E. McKenney" Introduce rcu_needs_cpu() interface. This can be used to tell if there will be a new rcu batch on a cpu soon by looking at the curlist pointer. This can be used to avoid to enter a tickless idle state where the cpu would miss that a new batch is ready when rcu_start_batch would be called on a different cpu. Signed-off-by: Heiko Carstens Cc: "Paul E. McKenney" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/rcupdate.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 5673008b61e..970284f571a 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -132,6 +132,7 @@ static inline void rcu_bh_qsctr_inc(int cpu) } extern int rcu_pending(int cpu); +extern int rcu_needs_cpu(int cpu); /** * rcu_read_lock - mark the beginning of an RCU read-side critical section. -- cgit v1.2.3 From 0159677857c5ada0a0a2c03a4dd59312382b73d0 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Mon, 15 May 2006 09:44:05 -0700 Subject: [PATCH] s390: add vmsplice system call Add new vmsplice system call and add missing __NR_xxx defines for sys_set_robust_list, sys_get_robust_list, sys_splice, sys_sync_file_range and sys_tee. Signed-off-by: Martin Schwidefsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-s390/unistd.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-s390/unistd.h b/include/asm-s390/unistd.h index 657d582e814..41c2792ff6b 100644 --- a/include/asm-s390/unistd.h +++ b/include/asm-s390/unistd.h @@ -296,8 +296,14 @@ #define __NR_pselect6 301 #define __NR_ppoll 302 #define __NR_unshare 303 +#define __NR_set_robust_list 304 +#define __NR_get_robust_list 305 +#define __NR_splice 306 +#define __NR_sync_file_range 307 +#define __NR_tee 308 +#define __NR_vmsplice 309 -#define NR_syscalls 304 +#define NR_syscalls 310 /* * There are some system calls that are not present on 64 bit, some -- cgit v1.2.3 From 5e376613899076396d0c97de67ad072587267370 Mon Sep 17 00:00:00 2001 From: Trent Piepho Date: Mon, 15 May 2006 09:44:06 -0700 Subject: [PATCH] symbol_put_addr() locks kernel Even since a previous patch: Fix race between CONFIG_DEBUG_SLABALLOC and modules Sun, 27 Jun 2004 17:55:19 +0000 (17:55 +0000) http://www.kernel.org/git/?p=linux/kernel/git/torvalds/old-2.6-bkcvs.git;a=commit;h=92b3db26d31cf21b70e3c1eadc56c179506d8fbe The function symbol_put_addr() will deadlock the kernel. symbol_put_addr() would acquire modlist_lock, then while holding the lock call two functions kernel_text_address() and module_text_address() which also try to acquire the same lock. This deadlocks the kernel of course. This patch changes symbol_put_addr() to not acquire the modlist_lock, it doesn't need it since it never looks at the module list directly. Also, it now uses core_kernel_text() instead of kernel_text_address(). The latter has an additional check for addr inside a module, but we don't need to do that since we call module_text_address() (the same function kernel_text_address uses) ourselves. Signed-off-by: Trent Piepho Cc: Zwane Mwaikambo Acked-by: Rusty Russell Cc: Johannes Stezenbach Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/kernel.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/kernel.h b/include/linux/kernel.h index e1bd0842f6a..f4fc576ed4c 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -124,6 +124,7 @@ extern int get_option(char **str, int *pint); extern char *get_options(const char *str, int nints, int *ints); extern unsigned long long memparse(char *ptr, char **retptr); +extern int core_kernel_text(unsigned long addr); extern int __kernel_text_address(unsigned long addr); extern int kernel_text_address(unsigned long addr); extern int session_of_pgrp(int pgrp); -- cgit v1.2.3 From 39d24e64263cd3211705d3b61ea4171c65030921 Mon Sep 17 00:00:00 2001 From: Mike Kravetz Date: Mon, 15 May 2006 09:44:13 -0700 Subject: [PATCH] add slab_is_available() routine for boot code slab_is_available() indicates slab based allocators are available for use. SPARSEMEM code needs to know this as it can be called at various times during the boot process. Signed-off-by: Mike Kravetz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/slab.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/slab.h b/include/linux/slab.h index 3af03b19c98..2d985d59c7b 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -150,6 +150,7 @@ static inline void *kcalloc(size_t n, size_t size, gfp_t flags) extern void kfree(const void *); extern unsigned int ksize(const void *); +extern int slab_is_available(void); #ifdef CONFIG_NUMA extern void *kmem_cache_alloc_node(kmem_cache_t *, gfp_t flags, int node); -- cgit v1.2.3 From e6333fd4ddf7a583480017f535b9ea53c116ab81 Mon Sep 17 00:00:00 2001 From: Hua Zhong Date: Mon, 15 May 2006 09:44:22 -0700 Subject: [PATCH] fix can_share_swap_page() when !CONFIG_SWAP can_share_swap_page() is used to check if the page has the last reference. This avoids allocating a new page for COW if it's the last page. However, if CONFIG_SWAP is not set, can_share_swap_page() is defined as 0, thus always causes a copy for the last COW page. The below simple patch fixes it. Signed-off-by: Hua Zhong Cc: David Howells Cc: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/swap.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/swap.h b/include/linux/swap.h index 5b1fdf1cff4..f03c2471930 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -296,7 +296,7 @@ static inline void disable_swap_token(void) #define read_swap_cache_async(swp,vma,addr) NULL #define lookup_swap_cache(swp) NULL #define valid_swaphandles(swp, off) 0 -#define can_share_swap_page(p) 0 +#define can_share_swap_page(p) (page_mapcount(p) == 1) #define move_to_swap_cache(p, swp) 1 #define move_from_swap_cache(p, i, m) 1 #define __delete_from_swap_cache(p) /*NOTHING*/ -- cgit v1.2.3 From 2ceec0c8c6e2780d58dece91b4b787729405d9e7 Mon Sep 17 00:00:00 2001 From: Uwe Zeisberger Date: Wed, 10 May 2006 18:11:05 +0100 Subject: [ARM] 3517/1: move definition of PROC_INFO_SZ from procinfo.h to asm-offsets.h Patch from Uwe Zeisberger The symbol is only used in arch/arm/kernel/head-common.S. This in turn is included from arch/arm/kernel/head.S and arch/arm/kernel/head-nommu.S which include asm-offsets.h . Signed-off-by: Uwe Zeisberger Signed-off-by: Russell King --- include/asm-arm/procinfo.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/asm-arm/procinfo.h b/include/asm-arm/procinfo.h index a9c75b2c314..84252605522 100644 --- a/include/asm-arm/procinfo.h +++ b/include/asm-arm/procinfo.h @@ -45,8 +45,6 @@ extern unsigned int elf_hwcap; #endif /* __ASSEMBLY__ */ -#define PROC_INFO_SZ 48 - #define HWCAP_SWP 1 #define HWCAP_HALF 2 #define HWCAP_THUMB 4 -- cgit v1.2.3 From 4cff33f94fefcce1b3c01a9d1da6bb85fe3cbdfa Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Fri, 17 Feb 2006 10:02:18 -0800 Subject: [PATCH] SPI: per-transfer overrides for wordsize and clocking Some protocols (like one for some bitmap displays) require different clock speed or word size settings for each transfer in an SPI message. This adds those parameters to struct spi_transfer. They are to be used when they are nonzero; otherwise the defaults from spi_device are to be used. The patch also adds a setup_transfer callback to spi_bitbang, uses it for messages that use those overrides, and implements it so that the pure bitbanging code can help resolve any questions about how it should work. Signed-off-by: Imre Deak Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- include/linux/spi/spi.h | 8 ++++++++ include/linux/spi/spi_bitbang.h | 6 ++++++ 2 files changed, 14 insertions(+) (limited to 'include') diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index b05f1463a26..caa4665e3fa 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -31,6 +31,7 @@ extern struct bus_type spi_bus_type; * @master: SPI controller used with the device. * @max_speed_hz: Maximum clock rate to be used with this chip * (on this board); may be changed by the device's driver. + * The spi_transfer.speed_hz can override this for each transfer. * @chip-select: Chipselect, distinguishing chips handled by "master". * @mode: The spi mode defines how data is clocked out and in. * This may be changed by the device's driver. @@ -38,6 +39,7 @@ extern struct bus_type spi_bus_type; * like eight or 12 bits are common. In-memory wordsizes are * powers of two bytes (e.g. 20 bit samples use 32 bits). * This may be changed by the device's driver. + * The spi_transfer.bits_per_word can override this for each transfer. * @irq: Negative, or the number passed to request_irq() to receive * interrupts from this device. * @controller_state: Controller's runtime state @@ -268,6 +270,10 @@ extern struct spi_master *spi_busnum_to_master(u16 busnum); * @tx_dma: DMA address of tx_buf, if spi_message.is_dma_mapped * @rx_dma: DMA address of rx_buf, if spi_message.is_dma_mapped * @len: size of rx and tx buffers (in bytes) + * @speed_hz: Select a speed other then the device default for this + * transfer. If 0 the default (from spi_device) is used. + * @bits_per_word: select a bits_per_word other then the device default + * for this transfer. If 0 the default (from spi_device) is used. * @cs_change: affects chipselect after this transfer completes * @delay_usecs: microseconds to delay after this transfer before * (optionally) changing the chipselect status, then starting @@ -322,7 +328,9 @@ struct spi_transfer { dma_addr_t rx_dma; unsigned cs_change:1; + u8 bits_per_word; u16 delay_usecs; + u32 speed_hz; struct list_head transfer_list; }; diff --git a/include/linux/spi/spi_bitbang.h b/include/linux/spi/spi_bitbang.h index c961fe9bf3e..c954557b757 100644 --- a/include/linux/spi/spi_bitbang.h +++ b/include/linux/spi/spi_bitbang.h @@ -30,6 +30,12 @@ struct spi_bitbang { struct spi_master *master; + /* setup_transfer() changes clock and/or wordsize to match settings + * for this transfer; zeroes restore defaults from spi_device. + */ + int (*setup_transfer)(struct spi_device *spi, + struct spi_transfer *t); + void (*chipselect)(struct spi_device *spi, int is_on); #define BITBANG_CS_ACTIVE 1 /* normally nCS, active low */ #define BITBANG_CS_INACTIVE 0 -- cgit v1.2.3 From e0c9905e87ac1bc56c9ea8f5b2934aeee53dce26 Mon Sep 17 00:00:00 2001 From: Stephen Street Date: Tue, 7 Mar 2006 23:53:24 -0800 Subject: [PATCH] SPI: add PXA2xx SSP SPI Driver This driver turns a PXA2xx synchronous serial port (SSP) into a SPI master controller (see Documentation/spi/spi_summary). The driver has the following features: - Support for any PXA2xx SSP - SSP PIO and SSP DMA data transfers. - External and Internal (SSPFRM) chip selects. - Per slave device (chip) configuration. - Full suspend, freeze, resume support. Signed-off-by: Stephen Street Signed-off-by: Andrew Morton Cc: David Brownell Signed-off-by: Greg Kroah-Hartman --- include/asm-arm/arch-pxa/pxa2xx_spi.h | 68 +++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 include/asm-arm/arch-pxa/pxa2xx_spi.h (limited to 'include') diff --git a/include/asm-arm/arch-pxa/pxa2xx_spi.h b/include/asm-arm/arch-pxa/pxa2xx_spi.h new file mode 100644 index 00000000000..1e70908b816 --- /dev/null +++ b/include/asm-arm/arch-pxa/pxa2xx_spi.h @@ -0,0 +1,68 @@ +/* + * Copyright (C) 2005 Stephen Street / StreetFire Sound Labs + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef PXA2XX_SPI_H_ +#define PXA2XX_SPI_H_ + +#define PXA2XX_CS_ASSERT (0x01) +#define PXA2XX_CS_DEASSERT (0x02) + +#if defined(CONFIG_PXA25x) +#define CLOCK_SPEED_HZ 3686400 +#define SSP1_SerClkDiv(x) (((CLOCK_SPEED_HZ/2/(x+1))<<8)&0x0000ff00) +#define SSP2_SerClkDiv(x) (((CLOCK_SPEED_HZ/(x+1))<<8)&0x000fff00) +#define SSP3_SerClkDiv(x) (((CLOCK_SPEED_HZ/(x+1))<<8)&0x000fff00) +#elif defined(CONFIG_PXA27x) +#define CLOCK_SPEED_HZ 13000000 +#define SSP1_SerClkDiv(x) (((CLOCK_SPEED_HZ/(x+1))<<8)&0x000fff00) +#define SSP2_SerClkDiv(x) (((CLOCK_SPEED_HZ/(x+1))<<8)&0x000fff00) +#define SSP3_SerClkDiv(x) (((CLOCK_SPEED_HZ/(x+1))<<8)&0x000fff00) +#endif + +#define SSP1_VIRT ((void *)(io_p2v(__PREG(SSCR0_P(1))))) +#define SSP2_VIRT ((void *)(io_p2v(__PREG(SSCR0_P(2))))) +#define SSP3_VIRT ((void *)(io_p2v(__PREG(SSCR0_P(3))))) + +enum pxa_ssp_type { + SSP_UNDEFINED = 0, + PXA25x_SSP, /* pxa 210, 250, 255, 26x */ + PXA25x_NSSP, /* pxa 255, 26x (including ASSP) */ + PXA27x_SSP, +}; + +/* device.platform_data for SSP controller devices */ +struct pxa2xx_spi_master { + enum pxa_ssp_type ssp_type; + u32 clock_enable; + u16 num_chipselect; + u8 enable_dma; +}; + +/* spi_board_info.controller_data for SPI slave devices, + * copied to spi_device.platform_data ... mostly for dma tuning + */ +struct pxa2xx_spi_chip { + u8 tx_threshold; + u8 rx_threshold; + u8 dma_burst_size; + u32 timeout_microsecs; + u8 enable_loopback; + void (*cs_control)(u32 command); +}; + +#endif /*PXA2XX_SPI_H_*/ -- cgit v1.2.3 From 747d844ee9a183ff3067bb1181f2a25c50649538 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Sun, 2 Apr 2006 10:33:37 -0800 Subject: [PATCH] SPI: spi whitespace fixes This removes superfluous whitespace in the header. Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- include/linux/spi/spi.h | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index caa4665e3fa..082006714b8 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -36,15 +36,15 @@ extern struct bus_type spi_bus_type; * @mode: The spi mode defines how data is clocked out and in. * This may be changed by the device's driver. * @bits_per_word: Data transfers involve one or more words; word sizes - * like eight or 12 bits are common. In-memory wordsizes are + * like eight or 12 bits are common. In-memory wordsizes are * powers of two bytes (e.g. 20 bit samples use 32 bits). * This may be changed by the device's driver. * The spi_transfer.bits_per_word can override this for each transfer. * @irq: Negative, or the number passed to request_irq() to receive - * interrupts from this device. + * interrupts from this device. * @controller_state: Controller's runtime state * @controller_data: Board-specific definitions for controller, such as - * FIFO initialization parameters; from board_info.controller_data + * FIFO initialization parameters; from board_info.controller_data * * An spi_device is used to interchange data between an SPI slave * (usually a discrete chip) and CPU memory. @@ -145,13 +145,13 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv) * struct spi_master - interface to SPI master controller * @cdev: class interface to this driver * @bus_num: board-specific (and often SOC-specific) identifier for a - * given SPI controller. + * given SPI controller. * @num_chipselect: chipselects are used to distinguish individual - * SPI slaves, and are numbered from zero to num_chipselects. - * each slave has a chipselect signal, but it's common that not - * every chipselect is connected to a slave. + * SPI slaves, and are numbered from zero to num_chipselects. + * each slave has a chipselect signal, but it's common that not + * every chipselect is connected to a slave. * @setup: updates the device mode and clocking records used by a - * device's SPI controller; protocol code may call this. + * device's SPI controller; protocol code may call this. * @transfer: adds a message to the controller's transfer queue. * @cleanup: frees controller-specific state * @@ -276,8 +276,8 @@ extern struct spi_master *spi_busnum_to_master(u16 busnum); * for this transfer. If 0 the default (from spi_device) is used. * @cs_change: affects chipselect after this transfer completes * @delay_usecs: microseconds to delay after this transfer before - * (optionally) changing the chipselect status, then starting - * the next transfer or completing this spi_message. + * (optionally) changing the chipselect status, then starting + * the next transfer or completing this spi_message. * @transfer_list: transfers are sequenced through spi_message.transfers * * SPI transfers always write the same number of bytes as they read. @@ -364,7 +364,7 @@ struct spi_transfer { * and its transfers, ignore them until its completion callback. */ struct spi_message { - struct list_head transfers; + struct list_head transfers; struct spi_device *spi; @@ -382,7 +382,7 @@ struct spi_message { */ /* completion is reported through a callback */ - void (*complete)(void *context); + void (*complete)(void *context); void *context; unsigned actual_length; int status; -- cgit v1.2.3 From ff9f4771b5f017ee0f57629488b6cd7a6ef3d19b Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Sun, 2 Apr 2006 16:06:35 -0500 Subject: [PATCH] SPI: Renamed bitbang_transfer_setup to spi_bitbang_setup_transfer and export it Renamed bitbang_transfer_setup to follow convention of other exported symbols from spi-bitbang. Exported spi_bitbang_setup_transfer to allow users of spi-bitbang to use the function in their own setup_transfer. Signed-off-by: Kumar Gala Cc: David Brownell Signed-off-by: Greg Kroah-Hartman --- include/linux/spi/spi_bitbang.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/spi/spi_bitbang.h b/include/linux/spi/spi_bitbang.h index c954557b757..16ce178f54d 100644 --- a/include/linux/spi/spi_bitbang.h +++ b/include/linux/spi/spi_bitbang.h @@ -57,6 +57,8 @@ struct spi_bitbang { extern int spi_bitbang_setup(struct spi_device *spi); extern void spi_bitbang_cleanup(const struct spi_device *spi); extern int spi_bitbang_transfer(struct spi_device *spi, struct spi_message *m); +extern int spi_bitbang_setup_transfer(struct spi_device *spi, + struct spi_transfer *t); /* start or stop queue processing */ extern int spi_bitbang_start(struct spi_bitbang *spi); -- cgit v1.2.3 From ccf77cc4af5b048e20cfd9327fcc286cb69c34cc Mon Sep 17 00:00:00 2001 From: David Brownell Date: Mon, 3 Apr 2006 15:46:22 -0700 Subject: [PATCH] SPI: devices can require LSB-first encodings Add spi_device hook for LSB-first word encoding, and update all the (in-tree) controller drivers to reject such devices. Eventually, some controller drivers will be updated to support lsb-first encodings on the wire; no current drivers need this. Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- include/linux/spi/spi.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 082006714b8..77add901691 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -35,10 +35,13 @@ extern struct bus_type spi_bus_type; * @chip-select: Chipselect, distinguishing chips handled by "master". * @mode: The spi mode defines how data is clocked out and in. * This may be changed by the device's driver. + * The "active low" default for chipselect mode can be overridden, + * as can the "MSB first" default for each word in a transfer. * @bits_per_word: Data transfers involve one or more words; word sizes * like eight or 12 bits are common. In-memory wordsizes are * powers of two bytes (e.g. 20 bit samples use 32 bits). - * This may be changed by the device's driver. + * This may be changed by the device's driver, or left at the + * default (0) indicating protocol words are eight bit bytes. * The spi_transfer.bits_per_word can override this for each transfer. * @irq: Negative, or the number passed to request_irq() to receive * interrupts from this device. @@ -67,6 +70,7 @@ struct spi_device { #define SPI_MODE_2 (SPI_CPOL|0) #define SPI_MODE_3 (SPI_CPOL|SPI_CPHA) #define SPI_CS_HIGH 0x04 /* chipselect active high? */ +#define SPI_LSB_FIRST 0x08 /* per-word bits-on-wire */ u8 bits_per_word; int irq; void *controller_state; @@ -75,7 +79,6 @@ struct spi_device { // likely need more hooks for more protocol options affecting how // the controller talks to each chip, like: - // - bit order (default is wordwise msb-first) // - memory packing (12 bit samples into low bits, others zeroed) // - priority // - drop chipselect after each word -- cgit v1.2.3 From a020ed7521a9737bcf3e34eb880867c60c3c68d0 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Mon, 3 Apr 2006 15:49:04 -0700 Subject: [PATCH] SPI: busnum == 0 needs to work We need to be able to have a "SPI bus 0" matching chip numbering; but that number was wrongly used to flag dynamic allocation of a bus number. This patch resolves that issue; now negative numbers trigger dynamic alloc. It also updates the how-to-write-a-controller-driver overview to mention this stuff. Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- include/linux/spi/spi.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 77add901691..e928c0dcc29 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -172,13 +172,13 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv) struct spi_master { struct class_device cdev; - /* other than zero (== assign one dynamically), bus_num is fully + /* other than negative (== assign one dynamically), bus_num is fully * board-specific. usually that simplifies to being SOC-specific. - * example: one SOC has three SPI controllers, numbered 1..3, + * example: one SOC has three SPI controllers, numbered 0..2, * and one board's schematics might show it using SPI-2. software * would normally use bus_num=2 for that controller. */ - u16 bus_num; + s16 bus_num; /* chipselects will be integral to many controllers; some others * might use board-specific GPIOs. -- cgit v1.2.3 From 8de8c8738086501bbe3057ed6f4b70dded657488 Mon Sep 17 00:00:00 2001 From: Sridhar Samudrala Date: Fri, 19 May 2006 10:58:12 -0700 Subject: [SCTP]: Set sk_err so that poll wakes up after a non-blocking connect failure. Also fix some other cases where sk_err is not set for 1-1 style sockets. Signed-off-by: Sridhar Samudrala --- include/net/sctp/command.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/net/sctp/command.h b/include/net/sctp/command.h index 34a1a09e5ae..807d6f1ef4b 100644 --- a/include/net/sctp/command.h +++ b/include/net/sctp/command.h @@ -99,6 +99,7 @@ typedef enum { SCTP_CMD_DEL_NON_PRIMARY, /* Removes non-primary peer transports. */ SCTP_CMD_T3_RTX_TIMERS_STOP, /* Stops T3-rtx pending timers */ SCTP_CMD_FORCE_PRIM_RETRAN, /* Forces retrans. over primary path. */ + SCTP_CMD_SET_SK_ERR, /* Set sk_err */ SCTP_CMD_LAST } sctp_verb_t; -- cgit v1.2.3 From dd2d1c6f2958d027e4591ca5d2a04dfe36ca6512 Mon Sep 17 00:00:00 2001 From: Vladislav Yasevich Date: Fri, 19 May 2006 11:52:20 -0700 Subject: [SCTP]: Respect the real chunk length when walking parameters. When performing bound checks during the parameter processing, we want to use the real chunk and paramter lengths for bounds instead of the rounded ones. This prevents us from potentially walking of the end if the chunk length was miscalculated. We still use rounded lengths when advancing the pointer. This was found during a conformance test that changed the chunk length without modifying parameters. Signed-off-by: Vlad Yasevich Signed-off-by: Sridhar Samudrala --- include/net/sctp/sctp.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h index e673b2c984e..aa6033ca7cd 100644 --- a/include/net/sctp/sctp.h +++ b/include/net/sctp/sctp.h @@ -461,12 +461,12 @@ static inline int sctp_frag_point(const struct sctp_sock *sp, int pmtu) * there is room for a param header too. */ #define sctp_walk_params(pos, chunk, member)\ -_sctp_walk_params((pos), (chunk), WORD_ROUND(ntohs((chunk)->chunk_hdr.length)), member) +_sctp_walk_params((pos), (chunk), ntohs((chunk)->chunk_hdr.length), member) #define _sctp_walk_params(pos, chunk, end, member)\ for (pos.v = chunk->member;\ pos.v <= (void *)chunk + end - sizeof(sctp_paramhdr_t) &&\ - pos.v <= (void *)chunk + end - WORD_ROUND(ntohs(pos.p->length)) &&\ + pos.v <= (void *)chunk + end - ntohs(pos.p->length) &&\ ntohs(pos.p->length) >= sizeof(sctp_paramhdr_t);\ pos.v += WORD_ROUND(ntohs(pos.p->length))) @@ -477,7 +477,7 @@ _sctp_walk_errors((err), (chunk_hdr), ntohs((chunk_hdr)->length)) for (err = (sctp_errhdr_t *)((void *)chunk_hdr + \ sizeof(sctp_chunkhdr_t));\ (void *)err <= (void *)chunk_hdr + end - sizeof(sctp_errhdr_t) &&\ - (void *)err <= (void *)chunk_hdr + end - WORD_ROUND(ntohs(err->length)) &&\ + (void *)err <= (void *)chunk_hdr + end - ntohs(err->length) &&\ ntohs(err->length) >= sizeof(sctp_errhdr_t); \ err = (sctp_errhdr_t *)((void *)err + WORD_ROUND(ntohs(err->length)))) -- cgit v1.2.3 From 2c171bf13423dc5293188cea7f6c2da1720926e2 Mon Sep 17 00:00:00 2001 From: Pavel Pisa Date: Fri, 19 May 2006 21:48:03 +0100 Subject: [ARM] 3531/1: i.MX/MX1 SD/MMC ensure, that clock are stopped before new command and cleanups Patch from Pavel Pisa There has been problems that for some paths that clock are not stopped during new command programming and initiation. Result is issuing of incorrect command to the card. Some other problems are cleaned too. Noisy report of known ERRATUM #4 has been suppressed. Signed-off-by: Pavel Pisa Signed-off-by: Russell King --- include/linux/mmc/mmc.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h index bdc556d8849..03a14a30c46 100644 --- a/include/linux/mmc/mmc.h +++ b/include/linux/mmc/mmc.h @@ -69,6 +69,7 @@ struct mmc_data { unsigned int timeout_ns; /* data timeout (in ns, max 80ms) */ unsigned int timeout_clks; /* data timeout (in clocks) */ unsigned int blksz_bits; /* data block size */ + unsigned int blksz; /* data block size */ unsigned int blocks; /* number of blocks */ unsigned int error; /* data error */ unsigned int flags; -- cgit v1.2.3 From c2a4c40651e08e465d3a6130bd9f6dcc1ce21d83 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Fri, 19 May 2006 21:55:35 +0100 Subject: [ARM] 3533/1: Implement the __raw_(read|write)_can_lock functions on ARM Patch from Catalin Marinas Recent patches introduced the write_can_lock() call in the kernel/ptrace.c file. Implement the __raw_* variants on ARM (SMP) as well. Signed-off-by: Catalin Marinas Signed-off-by: Russell King --- include/asm-arm/spinlock.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include') diff --git a/include/asm-arm/spinlock.h b/include/asm-arm/spinlock.h index 43ad4e55878..406ca97a8ab 100644 --- a/include/asm-arm/spinlock.h +++ b/include/asm-arm/spinlock.h @@ -142,6 +142,9 @@ static inline void __raw_write_unlock(raw_rwlock_t *rw) : "cc"); } +/* write_can_lock - would write_trylock() succeed? */ +#define __raw_write_can_lock(x) ((x)->lock == 0x80000000) + /* * Read locks are a bit more hairy: * - Exclusively load the lock value. @@ -198,4 +201,7 @@ static inline void __raw_read_unlock(raw_rwlock_t *rw) #define __raw_read_trylock(lock) generic__raw_read_trylock(lock) +/* read_can_lock - would read_trylock() succeed? */ +#define __raw_read_can_lock(x) ((x)->lock < 0x80000000) + #endif /* __ASM_SPINLOCK_H */ -- cgit v1.2.3 From ccf06998fe179ae2cc9517ed1d75433dc0b5032d Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Sat, 20 May 2006 15:00:15 -0700 Subject: [PATCH] spi: add spi master driver for Freescale MPC83xx SPI controller This driver supports the SPI controller on the MPC83xx SoC devices from Freescale. Note, this driver supports only the simple shift register SPI controller and not the descriptor based CPM or QUICCEngine SPI controller. Signed-off-by: Kumar Gala Signed-off-by: David Brownell Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/fsl_devices.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include') diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h index a3a0e078f79..16fbe59edeb 100644 --- a/include/linux/fsl_devices.h +++ b/include/linux/fsl_devices.h @@ -110,5 +110,16 @@ struct fsl_usb2_platform_data { #define FSL_USB2_PORT0_ENABLED 0x00000001 #define FSL_USB2_PORT1_ENABLED 0x00000002 +struct fsl_spi_platform_data { + u32 initial_spmode; /* initial SPMODE value */ + u16 bus_num; + + /* board specific information */ + u16 max_chipselect; + void (*activate_cs)(u8 cs, u8 polarity); + void (*deactivate_cs)(u8 cs, u8 polarity); + u32 sysclk; +}; + #endif /* _FSL_DEVICE_H_ */ #endif /* __KERNEL__ */ -- cgit v1.2.3 From 1b81d6637d27a0e6a0506ecef65493b50d859cfc Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Sat, 20 May 2006 15:00:16 -0700 Subject: [PATCH] drivers/base/firmware_class.c: cleanups - remove the following global function that is both unused and unimplemented: - register_firmware() - make the following needlessly global function static: - firmware_class_uevent() Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/firmware.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/firmware.h b/include/linux/firmware.h index 2d716080be4..33d8f2087b6 100644 --- a/include/linux/firmware.h +++ b/include/linux/firmware.h @@ -19,5 +19,4 @@ int request_firmware_nowait( void (*cont)(const struct firmware *fw, void *context)); void release_firmware(const struct firmware *fw); -void register_firmware(const char *name, const u8 *data, size_t size); #endif -- cgit v1.2.3 From 1fc7547d4bfe5c8c8c79e196b955b6fbaa21bfd2 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Sat, 20 May 2006 15:00:17 -0700 Subject: [PATCH] S3C24XX: GPIO based SPI driver SPI driver for SPI by GPIO on the Samsung S3C24XX series of SoC processors. Signed-off-by: Ben Dooks Cc: Greg KH Cc: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-arm/arch-s3c2410/spi-gpio.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 include/asm-arm/arch-s3c2410/spi-gpio.h (limited to 'include') diff --git a/include/asm-arm/arch-s3c2410/spi-gpio.h b/include/asm-arm/arch-s3c2410/spi-gpio.h new file mode 100644 index 00000000000..258c00bca27 --- /dev/null +++ b/include/asm-arm/arch-s3c2410/spi-gpio.h @@ -0,0 +1,31 @@ +/* linux/include/asm-arm/arch-s3c2410/spi.h + * + * Copyright (c) 2006 Simtec Electronics + * Ben Dooks + * + * S3C2410 - SPI Controller platfrom_device info + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#ifndef __ASM_ARCH_SPIGPIO_H +#define __ASM_ARCH_SPIGPIO_H __FILE__ + +struct s3c2410_spigpio_info; +struct spi_board_info; + +struct s3c2410_spigpio_info { + unsigned long pin_clk; + unsigned long pin_mosi; + unsigned long pin_miso; + + unsigned long board_size; + struct spi_board_info *board_info; + + void (*chip_select)(struct s3c2410_spigpio_info *spi, int cs); +}; + + +#endif /* __ASM_ARCH_SPIGPIO_H */ -- cgit v1.2.3 From 7fba53402eb0fb4209c74469814c583b6455e096 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Sat, 20 May 2006 15:00:18 -0700 Subject: [PATCH] S3C24XX: hardware SPI driver Hardware based SPI driver for Samsung S3C24XX SoC systems Signed-off-by: Ben Dooks Cc: David Brownell Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-arm/arch-s3c2410/spi.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 include/asm-arm/arch-s3c2410/spi.h (limited to 'include') diff --git a/include/asm-arm/arch-s3c2410/spi.h b/include/asm-arm/arch-s3c2410/spi.h new file mode 100644 index 00000000000..4029a1a1ab4 --- /dev/null +++ b/include/asm-arm/arch-s3c2410/spi.h @@ -0,0 +1,29 @@ +/* linux/include/asm-arm/arch-s3c2410/spi.h + * + * Copyright (c) 2006 Simtec Electronics + * Ben Dooks + * + * S3C2410 - SPI Controller platform_device info + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#ifndef __ASM_ARCH_SPI_H +#define __ASM_ARCH_SPI_H __FILE__ + +struct s3c2410_spi_info; +struct spi_board_info; + +struct s3c2410_spi_info { + unsigned long pin_cs; /* simple gpio cs */ + + unsigned long board_size; + struct spi_board_info *board_info; + + void (*set_cs)(struct s3c2410_spi_info *spi, int cs, int pol); +}; + + +#endif /* __ASM_ARCH_SPI_H */ -- cgit v1.2.3 From 5daa3ba0c6a41a8bb4ba17ad8d5514172e103504 Mon Sep 17 00:00:00 2001 From: Stephen Street Date: Sat, 20 May 2006 15:00:19 -0700 Subject: [PATCH] pxa2xx-spi update Fix some outstanding issues with the pxa2xx_spi driver when running on a PXA270: - Wrong timeout calculation in the setup function due to different peripheral clock rates in the PXAxxx family. - Bad handling of SSSR_TFS interrupts in interrupt_transfer function. - Added locking to interface between the pump_messages workqueue and the pump_transfers tasklet. Much thanks to Juergen Beisert for the extensive testing on the PXA270. Signed-off-by: Stephen Street Signed-off-by: David Brownell Cc: Russell King Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-arm/arch-pxa/pxa2xx_spi.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/asm-arm/arch-pxa/pxa2xx_spi.h b/include/asm-arm/arch-pxa/pxa2xx_spi.h index 1e70908b816..915590c391c 100644 --- a/include/asm-arm/arch-pxa/pxa2xx_spi.h +++ b/include/asm-arm/arch-pxa/pxa2xx_spi.h @@ -27,13 +27,16 @@ #define SSP1_SerClkDiv(x) (((CLOCK_SPEED_HZ/2/(x+1))<<8)&0x0000ff00) #define SSP2_SerClkDiv(x) (((CLOCK_SPEED_HZ/(x+1))<<8)&0x000fff00) #define SSP3_SerClkDiv(x) (((CLOCK_SPEED_HZ/(x+1))<<8)&0x000fff00) +#define SSP_TIMEOUT_SCALE (2712) #elif defined(CONFIG_PXA27x) #define CLOCK_SPEED_HZ 13000000 #define SSP1_SerClkDiv(x) (((CLOCK_SPEED_HZ/(x+1))<<8)&0x000fff00) #define SSP2_SerClkDiv(x) (((CLOCK_SPEED_HZ/(x+1))<<8)&0x000fff00) #define SSP3_SerClkDiv(x) (((CLOCK_SPEED_HZ/(x+1))<<8)&0x000fff00) +#define SSP_TIMEOUT_SCALE (769) #endif +#define SSP_TIMEOUT(x) ((x*10000)/SSP_TIMEOUT_SCALE) #define SSP1_VIRT ((void *)(io_p2v(__PREG(SSCR0_P(1))))) #define SSP2_VIRT ((void *)(io_p2v(__PREG(SSCR0_P(2))))) #define SSP3_VIRT ((void *)(io_p2v(__PREG(SSCR0_P(3))))) -- cgit v1.2.3 From e984bb43f7450312ba66fe0e67a99efa6be3b246 Mon Sep 17 00:00:00 2001 From: Bob Picco Date: Sat, 20 May 2006 15:00:31 -0700 Subject: [PATCH] Align the node_mem_map endpoints to a MAX_ORDER boundary Andy added code to buddy allocator which does not require the zone's endpoints to be aligned to MAX_ORDER. An issue is that the buddy allocator requires the node_mem_map's endpoints to be MAX_ORDER aligned. Otherwise __page_find_buddy could compute a buddy not in node_mem_map for partial MAX_ORDER regions at zone's endpoints. page_is_buddy will detect that these pages at endpoints are not PG_buddy (they were zeroed out by bootmem allocator and not part of zone). Of course the negative here is we could waste a little memory but the positive is eliminating all the old checks for zone boundary conditions. SPARSEMEM won't encounter this issue because of MAX_ORDER size constraint when SPARSEMEM is configured. ia64 VIRTUAL_MEM_MAP doesn't need the logic either because the holes and endpoints are handled differently. This leaves checking alloc_remap and other arches which privately allocate for node_mem_map. Signed-off-by: Bob Picco Acked-by: Mel Gorman Cc: Dave Hansen Cc: Andy Whitcroft Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mmzone.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index b5c21122c29..36740354d4d 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -22,6 +22,7 @@ #else #define MAX_ORDER CONFIG_FORCE_MAX_ZONEORDER #endif +#define MAX_ORDER_NR_PAGES (1 << (MAX_ORDER - 1)) struct free_area { struct list_head free_list; -- cgit v1.2.3 From 353b28bafd1b962359a866ff263a7fad833d29a1 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 21 May 2006 21:22:53 -0700 Subject: [SPARC]: Add robust futex syscall entries. Signed-off-by: David S. Miller --- include/asm-sparc/unistd.h | 8 +++++--- include/asm-sparc64/unistd.h | 8 +++++--- 2 files changed, 10 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/asm-sparc/unistd.h b/include/asm-sparc/unistd.h index f5611a721fb..45a57650778 100644 --- a/include/asm-sparc/unistd.h +++ b/include/asm-sparc/unistd.h @@ -316,11 +316,13 @@ #define __NR_pselect6 297 #define __NR_ppoll 298 #define __NR_unshare 299 +#define __NR_set_robust_list 300 +#define __NR_get_robust_list 301 -/* WARNING: You MAY NOT add syscall numbers larger than 299, since +/* WARNING: You MAY NOT add syscall numbers larger than 301, since * all of the syscall tables in the Sparc kernel are - * sized to have 299 entries (starting at zero). Therefore - * find a free slot in the 0-299 range. + * sized to have 301 entries (starting at zero). Therefore + * find a free slot in the 0-301 range. */ #define _syscall0(type,name) \ diff --git a/include/asm-sparc64/unistd.h b/include/asm-sparc64/unistd.h index 68705748bec..998ef4ab0e0 100644 --- a/include/asm-sparc64/unistd.h +++ b/include/asm-sparc64/unistd.h @@ -318,11 +318,13 @@ #define __NR_pselect6 297 #define __NR_ppoll 298 #define __NR_unshare 299 +#define __NR_set_robust_list 300 +#define __NR_get_robust_list 301 -/* WARNING: You MAY NOT add syscall numbers larger than 299, since +/* WARNING: You MAY NOT add syscall numbers larger than 301, since * all of the syscall tables in the Sparc kernel are - * sized to have 299 entries (starting at zero). Therefore - * find a free slot in the 0-299 range. + * sized to have 301 entries (starting at zero). Therefore + * find a free slot in the 0-301 range. */ #define _syscall0(type,name) \ -- cgit v1.2.3 From f5565f4a90bdfea99e4bcd8411ff5272ebdbdbf8 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Mon, 22 May 2006 16:54:30 -0700 Subject: [IRDA]: fixup type of ->lsap_state Signed-off-by: Alexey Dobriyan Signed-off-by: David S. Miller --- include/net/irda/irlmp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/net/irda/irlmp.h b/include/net/irda/irlmp.h index 86aefb1fda5..c0c895d379b 100644 --- a/include/net/irda/irlmp.h +++ b/include/net/irda/irlmp.h @@ -112,7 +112,7 @@ struct lsap_cb { struct timer_list watchdog_timer; - IRLMP_STATE lsap_state; /* Connection state */ + LSAP_STATE lsap_state; /* Connection state */ notify_t notify; /* Indication/Confirm entry points */ struct qos_info qos; /* QoS for this connection */ -- cgit v1.2.3 From 42f142371e48fbc44956d57b4e506bb6ce673cd7 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 23 May 2006 02:07:22 -0700 Subject: [SPARC64]: Respect gfp_t argument to dma_alloc_coherent(). Using asm-generic/dma-mapping.h does not work because pushing the call down to pci_alloc_coherent() causes the gfp_t argument of dma_alloc_coherent() to be ignored. Fix this by implementing things directly, and adding a gfp_t argument we can use in the internal call down to the PCI DMA implementation of pci_alloc_coherent(). This fixes massive memory corruption when using the sound driver layer, which passes things like __GFP_COMP down into these routines and (correctly) expects that to work. Signed-off-by: David S. Miller --- include/asm-sparc64/dma-mapping.h | 141 +++++++++++++++++++++++++++++++++++++- include/asm-sparc64/pci.h | 4 +- 2 files changed, 142 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-sparc64/dma-mapping.h b/include/asm-sparc64/dma-mapping.h index c7d5804ba76..a8d39f23d43 100644 --- a/include/asm-sparc64/dma-mapping.h +++ b/include/asm-sparc64/dma-mapping.h @@ -4,7 +4,146 @@ #include #ifdef CONFIG_PCI -#include + +/* we implement the API below in terms of the existing PCI one, + * so include it */ +#include +/* need struct page definitions */ +#include + +static inline int +dma_supported(struct device *dev, u64 mask) +{ + BUG_ON(dev->bus != &pci_bus_type); + + return pci_dma_supported(to_pci_dev(dev), mask); +} + +static inline int +dma_set_mask(struct device *dev, u64 dma_mask) +{ + BUG_ON(dev->bus != &pci_bus_type); + + return pci_set_dma_mask(to_pci_dev(dev), dma_mask); +} + +static inline void * +dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, + gfp_t flag) +{ + BUG_ON(dev->bus != &pci_bus_type); + + return pci_iommu_ops->alloc_consistent(to_pci_dev(dev), size, dma_handle, flag); +} + +static inline void +dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, + dma_addr_t dma_handle) +{ + BUG_ON(dev->bus != &pci_bus_type); + + pci_free_consistent(to_pci_dev(dev), size, cpu_addr, dma_handle); +} + +static inline dma_addr_t +dma_map_single(struct device *dev, void *cpu_addr, size_t size, + enum dma_data_direction direction) +{ + BUG_ON(dev->bus != &pci_bus_type); + + return pci_map_single(to_pci_dev(dev), cpu_addr, size, (int)direction); +} + +static inline void +dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size, + enum dma_data_direction direction) +{ + BUG_ON(dev->bus != &pci_bus_type); + + pci_unmap_single(to_pci_dev(dev), dma_addr, size, (int)direction); +} + +static inline dma_addr_t +dma_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction direction) +{ + BUG_ON(dev->bus != &pci_bus_type); + + return pci_map_page(to_pci_dev(dev), page, offset, size, (int)direction); +} + +static inline void +dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size, + enum dma_data_direction direction) +{ + BUG_ON(dev->bus != &pci_bus_type); + + pci_unmap_page(to_pci_dev(dev), dma_address, size, (int)direction); +} + +static inline int +dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, + enum dma_data_direction direction) +{ + BUG_ON(dev->bus != &pci_bus_type); + + return pci_map_sg(to_pci_dev(dev), sg, nents, (int)direction); +} + +static inline void +dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries, + enum dma_data_direction direction) +{ + BUG_ON(dev->bus != &pci_bus_type); + + pci_unmap_sg(to_pci_dev(dev), sg, nhwentries, (int)direction); +} + +static inline void +dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size, + enum dma_data_direction direction) +{ + BUG_ON(dev->bus != &pci_bus_type); + + pci_dma_sync_single_for_cpu(to_pci_dev(dev), dma_handle, + size, (int)direction); +} + +static inline void +dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size, + enum dma_data_direction direction) +{ + BUG_ON(dev->bus != &pci_bus_type); + + pci_dma_sync_single_for_device(to_pci_dev(dev), dma_handle, + size, (int)direction); +} + +static inline void +dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems, + enum dma_data_direction direction) +{ + BUG_ON(dev->bus != &pci_bus_type); + + pci_dma_sync_sg_for_cpu(to_pci_dev(dev), sg, nelems, (int)direction); +} + +static inline void +dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems, + enum dma_data_direction direction) +{ + BUG_ON(dev->bus != &pci_bus_type); + + pci_dma_sync_sg_for_device(to_pci_dev(dev), sg, nelems, (int)direction); +} + +static inline int +dma_mapping_error(dma_addr_t dma_addr) +{ + return pci_dma_mapping_error(dma_addr); +} + #else struct device; diff --git a/include/asm-sparc64/pci.h b/include/asm-sparc64/pci.h index 7c5a589ea43..e1ea67bc32f 100644 --- a/include/asm-sparc64/pci.h +++ b/include/asm-sparc64/pci.h @@ -42,7 +42,7 @@ static inline void pcibios_penalize_isa_irq(int irq, int active) struct pci_dev; struct pci_iommu_ops { - void *(*alloc_consistent)(struct pci_dev *, size_t, dma_addr_t *); + void *(*alloc_consistent)(struct pci_dev *, size_t, dma_addr_t *, gfp_t); void (*free_consistent)(struct pci_dev *, size_t, void *, dma_addr_t); dma_addr_t (*map_single)(struct pci_dev *, void *, size_t, int); void (*unmap_single)(struct pci_dev *, dma_addr_t, size_t, int); @@ -59,7 +59,7 @@ extern struct pci_iommu_ops *pci_iommu_ops; */ static inline void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size, dma_addr_t *dma_handle) { - return pci_iommu_ops->alloc_consistent(hwdev, size, dma_handle); + return pci_iommu_ops->alloc_consistent(hwdev, size, dma_handle, GFP_ATOMIC); } /* Free and unmap a consistent DMA buffer. -- cgit v1.2.3 From e46e490368f87032a6e54969194413339b35a385 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 22 May 2006 22:35:24 -0700 Subject: [PATCH] sys_sync_file_range(): move exported flags outside __KERNEL__ These flags are needed by userspace - move them outside __KERNEL__ (Pointed out by dwmw2) Cc: David Woodhouse Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/fs.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/fs.h b/include/linux/fs.h index 3de2bfb2410..f813bc8266a 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -213,6 +213,10 @@ extern int dir_notify_enable; #define FIBMAP _IO(0x00,1) /* bmap access */ #define FIGETBSZ _IO(0x00,2) /* get the block size used for bmap */ +#define SYNC_FILE_RANGE_WAIT_BEFORE 1 +#define SYNC_FILE_RANGE_WRITE 2 +#define SYNC_FILE_RANGE_WAIT_AFTER 4 + #ifdef __KERNEL__ #include @@ -758,9 +762,6 @@ extern int fcntl_setlease(unsigned int fd, struct file *filp, long arg); extern int fcntl_getlease(struct file *filp); /* fs/sync.c */ -#define SYNC_FILE_RANGE_WAIT_BEFORE 1 -#define SYNC_FILE_RANGE_WRITE 2 -#define SYNC_FILE_RANGE_WAIT_AFTER 4 extern int do_sync_file_range(struct file *file, loff_t offset, loff_t endbyte, unsigned int flags); -- cgit v1.2.3 From 0f0410823792ae0ecb45f2578598b115835ffdbb Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Tue, 23 May 2006 07:46:40 -0700 Subject: [PATCH] powerpc: wire up sys_[gs]et_robust_list Signed-off-by: David Woodhouse Cc: Benjamin Herrenschmidt Acked-by: Paul Mackerras Cc: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-powerpc/unistd.h | 4 +++- include/linux/syscalls.h | 6 ++++++ 2 files changed, 9 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-powerpc/unistd.h b/include/asm-powerpc/unistd.h index 908acb44cb8..edde2462bf5 100644 --- a/include/asm-powerpc/unistd.h +++ b/include/asm-powerpc/unistd.h @@ -321,8 +321,10 @@ #define __NR_readlinkat 296 #define __NR_fchmodat 297 #define __NR_faccessat 298 +#define __NR_get_robust_list 299 +#define __NR_set_robust_list 300 -#define __NR_syscalls 299 +#define __NR_syscalls 301 #ifdef __KERNEL__ #define __NR__exit __NR_exit diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 3996960fc56..60d49e5456e 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -52,6 +52,7 @@ struct utimbuf; struct mq_attr; struct compat_stat; struct compat_timeval; +struct robust_list_head; #include #include @@ -581,5 +582,10 @@ asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags); asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes, unsigned int flags); +asmlinkage long sys_get_robust_list(int pid, + struct robust_list_head __user **head_ptr, + size_t __user *len_ptr); +asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, + size_t len); #endif -- cgit v1.2.3