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2009-03-13x86: disable __do_IRQ supportThomas Gleixner
Impact: disable unused code x86 is fully converted to flow handlers. No need to keep the deprecated __do_IRQ() support active. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2009-03-12uml: fix WARNING: vmlinux: 'memcpy' exported twiceakpm@linux-foundation.org
Fix the following warning on x86_64: LD vmlinux.o MODPOST vmlinux.o WARNING: vmlinux: 'memcpy' exported twice. Previous export was in vmlinux For x86_64, this symbol is already exported from arch/um/sys-x86_64/ksyms.c. Reported-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> Tested-by: Boaz Harrosh <bharrosh@panasas.com> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-12UML on UML fixed: it did not startRenzo Davoli
It is currently impossible to run a user-mode linux machine inside another user-mode linux (UML on UML). It breaks after a few instructions. When it tries to check whether SYSEMU is installed (the inner) UML receives an inconsistent result (from the outer UML). This is the output of a broken attempt: $ ./linux mem=256m ubd0=cow Locating the bottom of the address space ... 0x0 Locating the top of the address space ... 0xc0000000 Core dump limits : soft - 0 hard - NONE Checking that ptrace can change system call numbers...OK Checking ptrace new tags for syscall emulation...unsupported Checking syscall emulation patch for ptrace...check_sysemu : expected SIGTRAP, got status = 256 $ The problem is the following: PTRACE_SYSCALL/SINGLESTEP is currently managed inside arch_ptrace for ARCH=um. PTRACE_SYSEMU/SUSEMU_SINGLESTEP is not captured in arch_ptrace's switch, therefore it is erroneously passed back to ptrace_request (in kernel/ptrace). This simple patch simply forces ptrace to return an error on PTRACE_SYSEMU/SUSEMU_SINGLESTEP as it is unsupported on ARCH=um, and fixes the problem. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Renzo Davoli <renzo@cs.unibo.it> Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sunhme: Fix qfe parent detection. sparc64: Fix lost interrupts on sun4u. sparc64: wait_event_interruptible_timeout may return -ERESTARTSYS jsflash: stop defining MAJOR_NR
2009-03-11MIPS: IP27: Enable RAID5 moduleRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-11MIPS: TXx9: update defconfigsAtsushi Nemoto
Enable following features: * MTD (PHYSMAP) * LED (LEDS_GPIO) * RBTX4939 * 7SEGLED * IDE (IDE_TX4938, IDE_TX4939) * SMC91X * RTC_DRV_TX4939 Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-11MIPS: NEC VR5500 processor support fixupShinya Kuribayashi
Current VR5500 processor support lacks of some functions which are expected to be configured/synthesized on arch initialization. Here're some VR5500A spec notes: * All execution hazards are handled in hardware. * Once VR5500A stops the operation of the pipeline by WAIT instruction, it could return from the standby mode only when either a reset, NMI request, or all enabled interrupts is/are detected. In other words, if interrupts are disabled by Status.IE=0, it keeps in standby mode even when interrupts are internally asserted. Notes on WAIT: The operation of the processor is undefined if WAIT insn is in the branch delay slot. The operation is also undefined if WAIT insn is executed when Status.EXL and Status.ERL are set to 1. * VR5500A core only implements the Load prefetch. With these changes, it boots fine. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-11MIPS: Fix build of non-CONFIG_SYSVIPC version of sys_32_ipcXiaotian Feng
Signed-off-by: Xiaotian Feng <xiaotian.feng@windriver.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-11Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: radeonfb/aty128fb: Disable broken early resume hook for PowerBooks hvc_console: Remove tty->low_latency on pseries backends powerpc: fix linkstation and storcenter compilation breakage powerpc/4xx: Enable SERIAL_OF support by default for Virtex platforms
2009-03-11x86: work around Fedora-11 x86-32 kernel failures on Intel Atom CPUsIngo Molnar
Impact: work around boot crash Work around Intel Atom erratum AAH41 (probabilistically) - it's triggering in the field. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Tested-by: Kyle McMartin <kyle@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-11Merge commit 'gcl/merge' into mergeBenjamin Herrenschmidt
2009-03-10m68knommu: m528x build fixSteven King
There isn't any mcfqspi.h in the tree, and without it everything inside the #ifdef CONFIG_SPI is uncompilable. Signed-off-by: Steven King <sfking@fdwdc.com> Acked-by: Greg Ungerer <gerg@snapgear.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-10m68knommu: m5206e build fixSteven King
Signed-off-by: Steven King <sfking@fdwdc.com> Acked-by: Greg Ungerer <gerg@snapgear.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-10xtensa: fix compilation somewhatAlexey Dobriyan
* ->put_char changes * HIGHMEM is bogus it seems, there is no kmap_atomic() et al * some includes Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Chris Zankel <zankel@tensilica.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-10Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86 mmiotrace: fix remove_kmmio_fault_pages()
2009-03-10sh: Add media/soc_camera.h to board setup of Renesas AP325RXANobuhiro Iwamatsu
Other compilation errors were revised by commit of "sh: ap325rxa: Revert ov772x support" (08c2f5b4d76f83213e379b12df504269d21c9e7c) but other compilation errors are given. We revert this commit and need to add new header(media/soc_camera.h). This change revises new compilation error. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-09Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] Add p4-clockmod sysfs-ui removal to feature-removal schedule. Revert "[CPUFREQ] Disable sysfs ui for p4-clockmod."
2009-03-09Revert "[CPUFREQ] Disable sysfs ui for p4-clockmod."Dave Jones
This reverts commit e088e4c9cdb618675874becb91b2fd581ee707e6. Removing the sysfs interface for p4-clockmod was flagged as a regression in bug 12826. Course of action: - Find out the remaining causes of overheating, and fix them if possible. ACPI should be doing the right thing automatically. If it isn't, we need to fix that. - mark p4-clockmod ui as deprecated - try again with the removal in six months. It's not really feasible to printk about the deprecation, because it needs to happen at all the sysfs entry points, which means adding a lot of strcmp("p4-clockmod".. calls to the core, which.. bleuch. Signed-off-by: Dave Jones <davej@redhat.com>
2009-03-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (29 commits) p54: fix race condition in memory management cfg80211: test before subtraction on unsigned iwlwifi: fix error flow in iwl*_pci_probe rt2x00 : more devices to rt73usb.c rt2x00 : more devices to rt2500usb.c bonding: Fix device passed into ->ndo_neigh_setup(). vlan: Fix vlan-in-vlan crashes. net: Fix missing dev->neigh_setup in register_netdevice(). tmspci: fix request_irq race pkt_sched: act_police: Fix a rate estimator test. tg3: Fix 5906 link problems SCTP: change sctp_ctl_sock_init() to try IPv4 if IPv6 fails IPv6: add "disable" module parameter support to ipv6.ko sungem: another error printed one too early aoe: error printed 1 too early net pcmcia: worklimit reaches -1 net: more timeouts that reach -1 net: fix tokenring license dm9601: new vendor/product IDs netlink: invert error code in netlink_set_err() ...
2009-03-09powerpc: fix linkstation and storcenter compilation breakageGuennadi Liakhovetski
Defining flash partition table in platform code is deprecated, and due to recent changes linkstation and storcenter do not compile any more with their default configurations because of undefined references to physmap_set_partitions(). Instead of fixing them by using the correct kernel configuration macro in preprocessor conditional, remove partition table definitions altogether. Instead add support for partition definition on the command-line and in device tree to the default configurations. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-03-09lguest: fix for CONFIG_SPARSE_IRQ=yRusty Russell
Impact: remove lots of lguest boot WARN_ON() when CONFIG_SPARSE_IRQ=y We now need to call irq_to_desc_alloc_cpu() before set_irq_chip_and_handler_name(), but we can't do that from init_IRQ (no kmalloc available). So do it as we use interrupts instead. Also means we only alloc for irqs we use, which was the intent of CONFIG_SPARSE_IRQ anyway. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Ingo Molnar <mingo@redhat.com>
2009-03-09lguest: fix crash 'unhandled trap 13 at <native_read_msr_safe>'Rusty Russell
Impact: fix lguest boot crash on modern Intel machines The code in early_init_intel does: if (c->x86 > 6 || (c->x86 == 6 && c->x86_model >= 0xd)) { u64 misc_enable; rdmsrl(MSR_IA32_MISC_ENABLE, misc_enable); And that rdmsr faults (not allowed from non-0 PL). We can get around this by mugging the family ID part of the cpuid. 5 seems like a good number. Of course, this is a hack (how very lguest!). We could just indicate that we don't support MSRs, or implement lguest_rdmst. Reported-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Tested-by: Patrick McHardy <kaber@trash.net>
2009-03-08x86 mmiotrace: fix remove_kmmio_fault_pages()Stuart Bennett
Impact: fix race+crash in mmiotrace The list manipulation in remove_kmmio_fault_pages() was broken. If more than one consecutive kmmio_fault_page was re-added during the grace period between unregister_kmmio_probe() and remove_kmmio_fault_pages(), the list manipulation failed to remove pages from the release list. After a second grace period the pages get into rcu_free_kmmio_fault_pages() and raise a BUG_ON() kernel crash. The list manipulation is fixed to properly remove pages from the release list. This bug has been present from the very beginning of mmiotrace in the mainline kernel. It was introduced in 0fd0e3da ("x86: mmiotrace full patch, preview 1"); An urgent fix for Linus. Tested by Stuart (on 32-bit) and Pekka (on amd and intel 64-bit systems, nouveau and nvidia proprietary). Signed-off-by: Stuart Bennett <stuart@freedesktop.org> Signed-off-by: Pekka Paalanen <pq@iki.fi> LKML-Reference: <20090308202135.34933feb@daedalus.pq.iki.fi> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-08Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, pebs: correct qualifier passed to ds_write_config() from ds_request_pebs() x86, bts: remove bad warning x86: add Dell XPS710 reboot quirk x86, math-emu: fix init_fpu for task != current x86: EFI: Back efi_ioremap with init_memory_mapping instead of FIX_MAP x86: fix DMI on EFI
2009-03-08Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (28 commits) Blackfin arch: SPI_MMC is now mainlined MMC_SPI Blackfin arch: disable legacy /proc/scsi/ support by default Blackfin arch: remove duplicated ANOMALY_05000448 ifdef check Blackfin arch: add stubs for anomalies 447 and 448 Blackfin arch: cleanup bfin_sport.h header and export it to userspace Blackfin arch: fix bug - gdb signull case make trunk kernel panic frequently Blackfin arch: remove spurious dash when dcache is off Blackfin arch: mark init_pda as __init as only __init funcs all it Blackfin arch: fix bug - On bf548-ezkit, ethernet fails to work after wakeup from "mem" Blackfin arch: Random read/write errors are a bad thing Blackfin arch: update default kernel config, select KSZ8893M driver for BF518 Blackfin arch: Fix bug - KGDB single step into the middle of a 4 bytes instruction on bf561 after soft bp is hit Blackfin arch: Fix bug - make ksz8893m driver available when bfin_mac is enabled Blackfin arch: make sure people do not set the kernel load address too high Blackfin arch: fix bug - The SPORT_HYS bit is not set for BF561 0.5 Blackfin arch: update anomaly sheets to match latest public info Blackfin arch: Fix BUG - kernel fails to build in pm.c when allow wakeup fromi standby by GPIO Blackfin arch: PM_BFIN_WAKE_GP: update help Blackfin arch: fix bug - kgdb fails to continue after setting breakpoint on bf561-ezkit kernel with smp patch Blackfin arch: Enable Write Back Cache on all Blackfin Boards ...
2009-03-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: ata: add CFA specific identify data words remove stale comment from <linux/hdreg.h> AT91: initialize Compact Flash on AT91SAM9263 cpu ide: add at91_ide driver ide: allow to wrap interrupt handler ide-iops: fix odd-length ATAPI PIO transfers ide: NULL noise: drivers/ide/ide-*.c ide: expiry() returns int, negative expiry() return values won't be noticed
2009-03-08Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] fix PCI DMA flag propagation on SN (Altix) with PICs
2009-03-08MIPS: compat: Implement is_compat_task.Ralf Baechle
This is a build fix required after "x86-64: seccomp: fix 32/64 syscall hole" (commit 5b1017404aea6d2e552e991b3fd814d839e9cd67). MIPS doesn't have the issue that was fixed for x86-64 by that patch. This also doesn't solve the N32 issue which is that N32 seccomp processes will be treated as non-compat processes thus only have access to N64 syscalls. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-06[IA64] fix PCI DMA flag propagation on SN (Altix) with PICsJeremy Higdon
We recently discovered a problem with passing of DMA attributes on SN systems with the older PIC chips. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Jeremy Higdon <jeremy@sgi.com> Cc: <habeck@sgi.com> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2009-03-06x86, pebs: correct qualifier passed to ds_write_config() from ds_request_pebs()Markus Metzger
ds_write_config() can write the BTS as well as the PEBS part of the DS config. ds_request_pebs() passes the wrong qualifier, which results in the wrong configuration to be written. Reported-by: Stephane Eranian <eranian@googlemail.com> Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> LKML-Reference: <20090305085721.A22550@sedona.ch.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-06x86, bts: remove bad warningMarkus Metzger
In case a ptraced task is reaped (while the tracer is still attached), ds_exit_thread() is called before ptrace_exit(). The latter will release the bts_tracer and remove the thread's ds_ctx. The former will WARN() if the context is not NULL. Oleg Nesterov submitted patches that move ptrace_exit() before exit_thread() and thus reverse the order of the above calls. Remove the bad warning. I will add it again when Oleg's changes are in. Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> LKML-Reference: <20090305084954.A22000@sedona.ch.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-06Blackfin arch: SPI_MMC is now mainlined MMC_SPIMichael Hennerich
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-06Blackfin arch: disable legacy /proc/scsi/ support by defaultMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-06Blackfin arch: remove duplicated ANOMALY_05000448 ifdef checkMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-06Blackfin arch: add stubs for anomalies 447 and 448Mike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-05AT91: initialize Compact Flash on AT91SAM9263 cpuStanislaw Gruszka
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl> Cc: Andrew Victor <avictor.za@gmail.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-03-05ide: add at91_ide driverStanislaw Gruszka
This is IDE host driver for AT91 (SAM9, CAP9, AT572D940HF) Static Memory Controller with Compact Flash True IDE Mode logic. Driver have to switch 8/16 bit bus width when accessing Task Tile or Data Register. Moreover some extra things need to be done when setting PIO mode. Only PIO mode is used, hardware have no DMA support. If interrupt line is connected through GPIO extra quirk is needed to cope with fake interrupts. Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl> Cc: Andrew Victor <avictor.za@gmail.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-03-05Blackfin arch: cleanup bfin_sport.h header and export it to userspaceAlon Bar-Lev
Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-05Blackfin arch: fix bug - gdb signull case make trunk kernel panic frequentlyJie Zhang
Use copy_to_user_page and copy_from_user_page instead of memcpy. copy_to_user_page does cache flush when necessary. Signed-off-by: Jie Zhang <jie.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-05Blackfin arch: remove spurious dash when dcache is offMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-05Blackfin arch: mark init_pda as __init as only __init funcs all itMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-05Blackfin arch: fix bug - On bf548-ezkit, ethernet fails to work after wakeup ↵Michael Hennerich
from "mem" Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-05Blackfin arch: Random read/write errors are a bad thingRobin Getz
Random read/write errors are a bad thing - so don't let anyone (including the test bench) run on something we know is bad. Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-05Blackfin arch: update default kernel config, select KSZ8893M driver for BF518Graf Yang
Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-05Blackfin arch: Fix bug - KGDB single step into the middle of a 4 bytes ↵Sonic Zhang
instruction on bf561 after soft bp is hit Run IFLUSH twice to avoid loading wrong instruction after invalidating icache and following sequence is met. 1) The one instruction address is cached in the icache. 2) This instruction in SDRAM is changed. 3) IFLASH[P0] is executed only once in lackfin_icache_flush_range(). 4) This instruction is executed again, but not the changed new one. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-05Blackfin arch: Fix bug - make ksz8893m driver available when bfin_mac is enabledGraf Yang
Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-05Blackfin arch: make sure people do not set the kernel load address too highMike Frysinger
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-04Merge branch 'master' of /home/davem/src/GIT/linux-2.6/David S. Miller
2009-03-05Blackfin arch: fix bug - The SPORT_HYS bit is not set for BF561 0.5Enrik Berkhan
IMHO the setting should depend on ANOMALY_05000305 which is about the availability of the bit, not ANOMALY_05000265 which only describes the SPORT sensitivity to noise (checked for BF561 only, though). If that's not true for other BF variants, maybe the definition of ANOMALY_05000265 for BF561 should be changed to '(1)' instead. Signed-off-by: Enrik Berkhan <Enrik.Berkhan@ge.com> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-04sparc64: Fix lost interrupts on sun4u.David S. Miller
Based upon a report by Meelis Roos. Sparc64 SBUS and PCI controllers use a combination of IMAP and ICLR registers to manage device interrupts. The IMAP register contains the "valid" enable bit as well as CPU targetting information. Whereas the ICLR register is written with zero at the end of handling an interrupt to reset the state machine for that interrupt to IDLE so it can be sent again. For PCI slot and SBUS slot devices we can have multiple interrupts sharing the same IMAP register. There are individual ICLR registers but only one IMAP register for managing those. We represent each shared case with individual virtual IRQs so the generic IRQ layer thinks there is only one user of the IRQ instance. In such shared IMAP cases this is wrong, so if there are multiple active users then a free_irq() call will prematurely turn off the interrupt by clearing the Valid bit in the IMAP register even though there are other active users. Fix this by simply doing nothing in sun4u_disable_irq() and checking IRQF_DISABLED during IRQ dispatch. This situation doesn't exist in the hypervisor sun4v cases, so I left those alone. Tested-by: Meelis Roos <mroos@linux.ee> Signed-off-by: David S. Miller <davem@davemloft.net>
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