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2009-04-07mm: add /proc controls for pdflush threadsPeter W Morreale
Add /proc entries to give the admin the ability to control the minimum and maximum number of pdflush threads. This allows finer control of pdflush on both large and small machines. The rationale is simply one size does not fit all. Admins on large and/or small systems may want to tune the min/max pdflush thread count to best suit their needs. Right now the min/max is hardcoded to 2/8. While probably a fair estimate for smaller machines, large machines with large numbers of CPUs and large numbers of filesystems/block devices may benefit from larger numbers of threads working on different block devices. Even if the background flushing algorithm is radically changed, it is still likely that multiple threads will be involved and admins would still desire finer control on the min/max other than to have to recompile the kernel. The patch adds '/proc/sys/vm/nr_pdflush_threads_min' and '/proc/sys/vm/nr_pdflush_threads_max' with r/w permissions. The minimum value for nr_pdflush_threads_min is 1 and the maximum value is the current value of nr_pdflush_threads_max. This minimum is required since additional thread creation is performed in a pdflush thread itself. The minimum value for nr_pdflush_threads_max is the current value of nr_pdflush_threads_min and the maximum value can be 1000. Documentation/sysctl/vm.txt is also updated. [akpm@linux-foundation.org: fix comment, fix whitespace, use __read_mostly] Signed-off-by: Peter W Morreale <pmorreale@novell.com> Reviewed-by: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07mm: fix pdflush thread creation upper boundPeter W Morreale
Fix a race on creating pdflush threads. Without the patch, it is possible to create more than MAX_PDFLUSH_THREADS threads, and this has been observed in practice on IO loaded SMP machines. The fix involves moving the lock around to protect the check against the thread count and correctly dealing with thread creation failure. This fix also _mostly_ repairs a race condition on how quickly the threads are created. The original intent was to create a pdflush thread (up to the max allowed) every second. Without this patch is is possible to create NCPUS pdflush threads concurrently. The 'mostly' caveat is because an assumption is made that thread creation will be successful. If we fail to create the thread, the miss is not considered fatal. (we will try again in 1 second) Signed-off-by: Peter W Morreale <pmorreale@novell.com> Reviewed-by: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07esp: fix section mismatch warningRandy Dunlap
Not critical. WARNING: drivers/char/esp.o(.text+0x278): Section mismatch in reference from the function show_serial_version() to the variable .init.data:serial_version The function show_serial_version() references the variable __initdata serial_version. This is often because show_serial_version lacks a __initdata annotation or the annotation of serial_version is wrong. WARNING: drivers/char/esp.o(.text+0x27d): Section mismatch in reference from the function show_serial_version() to the variable .init.data:serial_name The function show_serial_version() references the variable __initdata serial_name. This is often because show_serial_version lacks a __initdata annotation or the annotation of serial_name is wrong. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Andrew J. Robinson <arobinso@nyx.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07PCI: Fix oops in pci_vpd_truncateAnton Vorontsov
pci_vpd_truncate() should check for dev->vpd->attr, otherwise this might happen: sky2 driver version 1.22 Unable to handle kernel paging request for data at address 0x0000000c Faulting instruction address: 0xc01836fc Oops: Kernel access of bad area, sig: 11 [#1] [...] NIP [c01836fc] pci_vpd_truncate+0x38/0x40 LR [c029be18] sky2_probe+0x14c/0x518 Call Trace: [ef82bde0] [c029bda4] sky2_probe+0xd8/0x518 (unreliable) [ef82be20] [c018a11c] local_pci_probe+0x24/0x34 [ef82be30] [c018a14c] pci_call_probe+0x20/0x30 [ef82be50] [c018a330] __pci_device_probe+0x64/0x78 [ef82be60] [c018a44c] pci_device_probe+0x30/0x58 [ef82be80] [c01aa270] really_probe+0x78/0x1a0 [ef82bea0] [c01aa460] __driver_attach+0xa4/0xa8 [ef82bec0] [c01a96ac] bus_for_each_dev+0x60/0x9c [ef82bef0] [c01aa0b4] driver_attach+0x24/0x34 [ef82bf00] [c01a9e08] bus_add_driver+0x12c/0x1cc [ef82bf20] [c01aa87c] driver_register+0x6c/0x110 [ef82bf30] [c018a770] __pci_register_driver+0x4c/0x9c [ef82bf50] [c03782c8] sky2_init_module+0x30/0x40 [ef82bf60] [c0001dbc] do_one_initcall+0x34/0x1a0 [ef82bfd0] [c0362240] do_initcalls+0x38/0x58 This happens with CONFIG_SKY2=y, and "ip=on" kernel command line, so pci_vpd_truncate() is called before late_initcall(pci_sysfs_init), therefore ->attr isn't yet initialized. Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: tomoyo: remove "undelete domain" command.
2009-04-07Merge ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-module-and-param * git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-module-and-param: Revert "module: remove the SHF_ALLOC flag on the __versions section."
2009-04-07Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (28 commits) powerpc: Fix oops when loading modules powerpc: Wire up preadv and pwritev powerpc/ftrace: Fix printf format warning powerpc/ftrace: Fix #if that should be #ifdef powerpc: Fix ptrace compat wrapper for FPU register access powerpc: Print information about mapping hw irqs to virtual irqs powerpc: Correct dependency of KEXEC powerpc: Disable VSX or current process in giveup_fpu/altivec powerpc/pseries: Enable relay in pseries_defconfig powerpc/pseries: Fix ibm,client-architecture comment powerpc/pseries: Scan for all events in rtasd powerpc/pseries: Add dispatch dispersion statistics powerpc: Clean up some prom printouts powerpc: Print progress of ibm,client-architecture method powerpc: Remove duplicated #include's powerpc/pmac: Fix internal modem IRQ on Wallstreet PowerBook powerpc/wdrtas: Update wdrtas_get_interval to use rtas_data_buf fsl-diu-fb: Pass the proper device for dma mapping routines powerpc/pq2fads: Update device tree for use with device-tree-aware u-boot. cpm_uart: Disable CPM udbg when re-initing CPM uart, even if not the console. ...
2009-04-07ramfs: fix double freeing s_fs_info on failed mountIngo Molnar
If ramfs mount fails, s_fs_info will be freed twice in ramfs_fill_super() and ramfs_kill_sb(), leading to kernel oops. Consolidate and beautify the code. Make sure s_fs_info and s_root are in known good states. Acked-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07Revert "module: remove the SHF_ALLOC flag on the __versions section."Rusty Russell
This reverts commit 9cb610d8e35fe3ec95a2fe2030b02f85aeea83c1. This was an impressively stupid patch. Firstly, we reset the SHF_ALLOC flag lower down in the same function, so the patch was useless. Even better, find_sec() ignores sections with SHF_ALLOC not set, so it breaks CONFIG_MODVERSIONS=y with CONFIG_MODULE_FORCE_LOAD=n, which refuses to load the module since it can't find the __versions section. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-04-07tomoyo: remove "undelete domain" command.Tetsuo Handa
Since TOMOYO's policy management tools does not use the "undelete domain" command, we decided to remove that command. Signed-off-by: Kentaro Takeda <takedakn@nttdata.co.jp> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Toshiharu Harada <haradats@nttdata.co.jp> Signed-off-by: James Morris <jmorris@namei.org>
2009-04-07powerpc: Fix oops when loading modulesPaul Mackerras
This fixes a problem reported by Sean MacLennan where loading any module would cause an oops. We weren't marking the pages containing the module text as having hardware execute permission, due to a bug introduced in commit 8d1cf34e ("powerpc/mm: Tweak PTE bit combination definitions"), hence trying to execute the module text caused an exception on processors that support hardware execute permission. This adds _PAGE_HWEXEC to the definitions of PAGE_KERNEL_X and PAGE_KERNEL_ROX to fix this problem. Reported-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07powerpc: Wire up preadv and pwritevStephen Rothwell
[paulus@samba.org: changed to use syscall numbers 320 and 321 since perf_counters is currently using 319.] Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07powerpc/ftrace: Fix printf format warningMichael Ellerman
'tramp' is an unsigned long, so print it with %lx. Fixes the following build warning: arch/powerpc/kernel/ftrace.c:291: error: format ‘%x’ expects type ‘unsigned int’, but argument 2 has type ‘long unsigned int’ Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07powerpc/ftrace: Fix #if that should be #ifdefMichael Ellerman
Commit bb7253403f7a4670a128e4c080fd8ea1bd4d5029 ("powerpc64, ftrace: save toc only on modules for function graph"), added an #if CONFIG_PPC64. This changes it to #ifdef. Fixes the following warning on 32-bit builds: arch/powerpc/kernel/ftrace.c:562:5: error: "CONFIG_PPC64" is not defined Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07powerpc: Fix ptrace compat wrapper for FPU register accessMichael Neuling
The ptrace compat wrapper mishandles access to the fpu registers. The PTRACE_PEEKUSR and PTRACE_POKEUSR requests miscalculate the index into the fpr array due to the broken FPINDEX macro. The PPC_PTRACE_PEEKUSR_3264 request needs to use the same formula that the native ptrace interface uses when operating on the register number (as opposed to the 4-byte offset). The PPC_PTRACE_POKEUSR_3264 request didn't take TS_FPRWIDTH into account. Signed-off-by: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07powerpc: Print information about mapping hw irqs to virtual irqsMichael Ellerman
The irq remapping layer seems to cause some confusion when people see a different irq number in /proc/interrupts vs the one they request in their driver or DTS. So have the irq remapping layer print out a message when we map an irq. The message is only printed the first time the irq is mapped, and it's KERN_DEBUG so most people won't see it. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07powerpc: Correct dependency of KEXECGeert Uytterhoeven
commit 28794d34ecb6815a3fa0a4256027c9b081a17c5f ("powerpc/kconfig: Kill PPC_MULTIPLATFORM") broke KEXEC, by making it dependent on BOOK3S, while it should be PPC_BOOK3S. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07powerpc: Disable VSX or current process in giveup_fpu/altivecMichael Neuling
When we call giveup_fpu, we need to need to turn off VSX for the current process. If we don't, on return to userspace it may execute a VSX instruction before the next FP instruction, and not have its register state refreshed correctly from the thread_struct. Ditto for altivec. This caused a bug where an unaligned lfs or stfs results in fix_alignment calling giveup_fpu so it can use the FPRs (in order to do a single <-> double conversion), and then returning to userspace with FP off but VSX on. Then if a VSX instruction is executed, before another FP instruction, it will proceed without another exception and hence have the incorrect register state for VSX registers 0-31. lfs unaligned <- alignment exception turns FP off but leaves VSX on VSX instruction <- no exception since VSX on, hence we get the wrong VSX register values for VSX registers 0-31, which overlap the FPRs. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07powerpc/pseries: Enable relay in pseries_defconfigAnton Blanchard
Enable relay in pseries config, ppc64_defconfig had it enabled but pseries did not. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07powerpc/pseries: Fix ibm,client-architecture commentAnton Blanchard
We specify a 64MB RMO, but the comment says 128MB. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07powerpc/pseries: Scan for all events in rtasdAnton Blanchard
Instead of checking for known events, pass in all 1s so we handle future event types. We were currently missing the IO event type. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07powerpc/pseries: Add dispatch dispersion statisticsAnton Blanchard
PHYP tells us how often a shared processor dispatch changed physical cpus. This can highlight performance problems caused by the hypervisor. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07powerpc: Clean up some prom printoutsAnton Blanchard
Make all messages consistent, some have spaces before the "...", some do not. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07powerpc: Print progress of ibm,client-architecture methodAnton Blanchard
The ibm,client-architecture method will often cause a reconfiguration reboot. When this happens the last thing we see is: Hypertas detected, assuming LPAR ! Which doesn't explain what just happened. Wrap the ibm,client-architecture so it's clear what is going on: Calling ibm,client-architecture... done In order to maintain the law of conservation of screen real estate, downgrade two other messages to debug. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07powerpc: Remove duplicated #include'sHuang Weiyi
Remove duplicated #include's in - arch/powerpc/include/asm/ps3fb.h - arch/powerpc/kernel/setup-common.c Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07powerpc/pmac: Fix internal modem IRQ on Wallstreet PowerBookBenjamin Herrenschmidt
The (relatively) new pmac_zilog driver doesn't use the pre-munged IRQ numbers from the macio_dev unlike other macio things, it directly maps it off the OF device-tree. It does that because it can be initialized much earlier than the registration of the macio devices, in order to get a serial console early. Unfortunately, that means that it "misses" some fixups done by the macio layer to work around missing interrupt descriptions in the device-tree of the Wallstreet machines. This patch brings the necessary workaround into the pmac_zilog driver itself to bring it back to working condition. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07powerpc/wdrtas: Update wdrtas_get_interval to use rtas_data_bufMark Nelson
The buffer passed to the ibm,get-system-parameter RTAS call must be in the RMA. To ensure we pass an address in the RMA use rtas_data_buf for the actual RTAS call and then copy the result to value. We can't just make it static because this can be compiled in as a module. Also add the WDRTAS_SP_SPI_LEN so we don't litter '4' throughout the function. Signed-off-by: Mark Nelson <markn@au1.ibm.com> Tested-by: Adrian Reber <adrian@lisas.de> Acked-by: Utz Bacher <utz.bacher@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07Merge branch 'next' of ↵Paul Mackerras
master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc into merge
2009-04-06Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (120 commits) cx231xx: Convert to snd_card_create() V4L/DVB (11440): PWC: fix build error when CONFIG_INPUT=m V4L/DVB (11439): UVC: uvc_status_cleanup(): undefined reference to `input_unregister_device' V4L/DVB (11438): au0828: fix Kconfig dependance V4L/DVB (11437): pvrusb2: Drop client_register/unregister stubs V4L/DVB (11436): radio-mr800: convert to to v4l2_device V4L/DVB (11435): dsbr100 radio: convert to to v4l2_device V4L/DVB: zr364xx: remove unused #include <version.h> V4L/DVB: usbvision: remove unused #include <version.h> V4L/DVB (11427): gspca - m5602: Minor cleanups V4L/DVB (11426): gspca - m5602: Don't touch hflip/vflip register on Read/Modify/Write V4L/DVB (11425): gspca - m5602: Move the vflip quirk to probe stage. V4L/DVB (11424): gspca - m5602-ov9650: Use the local ctrl cache. Adjust image on vflip. V4L/DVB (11423): gspca - m5602-ov9650: Add a disconnect hook, setup a ctrl cache ctrl. V4L/DVB (11422): gspca - m5602-ov9650: Replace a magic constant with a define V4L/DVB (11421): gspca - m5602-ov9650: Synthesize modesetting. V4L/DVB (11420): gspca - m5602: Improve error handling in the ov9650 driver V4L/DVB (11419): gspca - m5602-ov9650: Don't read exposure data from COM1. V4L/DVB (11418): gspca - m5602-ov9650: Auto white balancing is on by default V4L/DVB (11417): gspca - m5602-ov9650: Autogain is on by default ...
2009-04-06Merge 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: b44: Use kernel DMA addresses for the kernel DMA API forcedeth: Fix resume from hibernation regression. xfrm: fix fragmentation on inter family tunnels ibm_newemac: Fix dangerous struct assumption gigaset: documentation update gigaset: in file ops, check for device disconnect before anything else bas_gigaset: use tasklet_hi_schedule for timing critical tasklets net/802/fddi.c: add MODULE_LICENSE smsc911x: remove unused #include <linux/version.h> axnet_cs: fix phy_id detection for bogus Asix chip. bnx2: Use request_firmware() b44: Fix sizes passed to b44_sync_dma_desc_for_{device,cpu}() socket: use percpu_add() while updating sockets_in_use virtio_net: Set the mac config only when VIRITO_NET_F_MAC myri_sbus: use request_firmware e1000: fix loss of multicast packets vxge: should include tcp.h Conflict in firmware/WHENCE (SCSI vs net firmware)
2009-04-06b44: Use kernel DMA addresses for the kernel DMA APIMichael Buesch
We must not use the device DMA addresses for the kernel DMA API, because device DMA addresses have an additional offset added for the SSB translation. Use the original dma_addr_t for the sync operation. Cc: stable@kernel.org Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-06forcedeth: Fix resume from hibernation regression.Ed Swierk
Reset phy state on resume, fixing a regression caused by powering down the phy on hibernate. Signed-off-by: Ed Swierk <eswierk@aristanetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-06cx231xx: Convert to snd_card_create()Mauro Carvalho Chehab
Convert from snd_card_new() to the new snd_card_create() function. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11440): PWC: fix build error when CONFIG_INPUT=mRandy Dunlap
Fix build errors when USB_PWC=y and INPUT=m. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Laurent Pinchart <laurent.pinchart@skynet.be> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11439): UVC: uvc_status_cleanup(): undefined reference to ↵Randy Dunlap
`input_unregister_device' Fix build errors when USB_VIDEO_CLASS=y and INPUT=m. Fixes kernel bugzilla #12671. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Laurent Pinchart <laurent.pinchart@skynet.be> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11438): au0828: fix Kconfig dependanceAlexander Beregalov
Fix this build error: ERROR: "videobuf_queue_vmalloc_init" [drivers/media/video/au0828/au0828.ko] undefined! ERROR: "videobuf_vmalloc_free" [drivers/media/video/au0828/au0828.ko] undefined! ERROR: "videobuf_to_vmalloc" [drivers/media/video/au0828/au0828.ko] undefined! Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11437): pvrusb2: Drop client_register/unregister stubsJean Delvare
The client_register and client_unregister methods are optional so there is no point in defining stub ones. Especially when these methods are likely to be removed soon. Signed-off-by: Jean Delvare <khali@linux-fr.org> Acked-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11436): radio-mr800: convert to to v4l2_deviceAlexey Klimov
radio-mr800: convert to to v4l2_device. Signed-off-by: Alexey Klimov <klimov.linux@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11435): dsbr100 radio: convert to to v4l2_deviceAlexey Klimov
dsbr100: convert to v4l2_device. Signed-off-by: Alexey Klimov <klimov.linux@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB: zr364xx: remove unused #include <version.h>Huang Weiyi
Remove unused #include <version.h> in drivers/media/video/zr364xx.c. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB: usbvision: remove unused #include <version.h>Huang Weiyi
Remove unused #include <version.h> in drivers/media/video/usbvision/usbvision-i2c.c. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11427): gspca - m5602: Minor cleanupsErik Andr?n
Remove an unnecessary error check and reorder some code. Signed-off-by: Erik Andr?n <erik.andren@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11426): gspca - m5602: Don't touch hflip/vflip register on ↵Erik Andr?n
Read/Modify/Write Touching the hflip/vflip register while doing the read/modify/write corrupts the image. Just read from the sensor ctrl cache instead and all is good. Signed-off-by: Erik Andr?n <erik.andren@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11425): gspca - m5602: Move the vflip quirk to probe stage.Erik Andr?n
The vflip quirk is better checked at probe time as it's only needed once. Also add an extra reset at init time to resolve a suspend to ram regression. Signed-off-by: Erik Andr?n <erik.andren@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11424): gspca - m5602-ov9650: Use the local ctrl cache. Adjust ↵Erik Andr?n
image on vflip. Signed-off-by: Erik Andr?n <erik.andren@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11423): gspca - m5602-ov9650: Add a disconnect hook, setup a ctrl ↵Erik Andr?n
cache ctrl. Reading and writing to a register doesn't always work reliably. Add a cache and ensure that it is deallocated properly upon module disconnect. Signed-off-by: Erik Andr?n <erik.andren@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11422): gspca - m5602-ov9650: Replace a magic constant with a defineErik Andr?n
Signed-off-by: Erik Andr?n <erik.andren@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11421): gspca - m5602-ov9650: Synthesize modesetting.Erik Andr?n
Previously all resolution setting was done with precalculated tables. When the image is vflipped we need to adjust the alignment which would require another table. Now we can adjust the parameters on the fly instead. Signed-off-by: Erik Andr?n <erik.andren@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11420): gspca - m5602: Improve error handling in the ov9650 driverErik Andr?n
Some errors were not propagated properly. Signed-off-by: Erik Andrén <erik.andren@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11419): gspca - m5602-ov9650: Don't read exposure data from COM1.Erik Andr?n
ov9650: Reading the COM1 register corrupts the image. Decrease the granularity of the exposure and limit its upper range as setting such high values doesn't have any effect on the image. Signed-off-by: Erik Andr?n <erik.andren@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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