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* Merge branch 's3c-fixes' of git://aeryn.fluff.org.uk/bjdooks/linuxRussell King2009-06-2512-21/+51
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| * [ARM] GTA02: build fixes (s3c2410_nand_set usage)Nelson Castillo2009-06-241-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes two errors we get when building GTA02 kernel. ~ use_bbt is incorrect, we need flash_bbt. ~ We do not need .force_soft_ecc because we can unset CONFIG_MTD_NAND_S3C2410_HWECC. Signed-off-by: Nelson Castillo <arhuaco@freaks-unidos.net> [ben-linux@fluff.org: updated patch description] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * [ARM] S3C maintainer updates merge branch maintainers-updates into s3c-fixesBen Dooks2009-06-231-0/+43
| |\ | | | | | | | | | Merge branch 'maintainers-update' into s3c-fixes
| | * MAINTAINERS: Add ARM S3C2442, S3C2443, S3C6400, S3C6410 and ARM/SAMSUNGBen Dooks2009-06-131-0/+41
| | | | | | | | | | | | | | | | | | | | | Add entries for the ARM architectures and platform support that are currently being maintained by myself. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| | * MAINTAINERS: Update file list for ARM/S3C2410 and ARM/S3C2440Ben Dooks2009-06-131-0/+2
| | | | | | | | | | | | | | | | | | | | | Add F: entries for ARM/S3C2410 and ARM/S3C2440 to update the entries. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * | [ARM] MINI2440: Add missing flash_bbt flat to NANDBen Dooks2009-06-231-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | The commit 9db41f9edcb87ae050fcb171c44be7f212728d54 added the .flash_bbt flag to the nand set, so add this back into the mach-mini2440.c file (taken out on initial commit to allow build). Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * | [ARM] s3c2410_defconfig: add MINI2440 machine to buildBen Dooks2009-06-231-0/+1
| | | | | | | | | | | | | | | | | | | | | Add the MINI2440 to the list of machines built by the central defconfig. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * | [ARM] S3C: Fix S3C24XX build to not include s3c64xx IIS devicesBen Dooks2009-06-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 52da219e9664e537a745877b0efa7cf2b1ff2996 added IIS platform devices, but these do not build on s3c24xx systems and the file depends on SND_S3C24XX_SOC, which is selected for all S3C64XX/S3C24XX systems. As a quick fix, make the dev-audio.o file depends on SND_S3C64XX_SOC_I2S instead. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * | [ARM] S3C24XX: Fix missing s3c_iis_device.Ben Dooks2009-06-231-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 52da219e9664e537a745877b0efa7cf2b1ff2996 removed the s3c_device_iis, but didn't replace it with anything so a number of s3c24xx machines are currently failing to build. As a temporary fix, re-instate s3c_device_iis until a proper replacement can be done for it. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * | [ARM] MINI2440: remove duplicated #includeHuang Weiyi2009-06-231-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | Remove duplicated #include('s) in arch/arm/mach-s3c2440/mach-mini2440.c Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * | [ARM] S3C24XX: Fix spi-bus configuration build errorsBen Dooks2009-06-232-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The commit ec976d6eb021dc8f2994248c310a41540f4756bd removed a number of gpio definitions from <mach/hardware.h> but misssed updating these two files: Fix the following build errors by including <linux/gpio.h>: arch/arm/plat-s3c24xx/spi-bus1-gpg5_6_7.c: In function 's3c24xx_spi_gpiocfg_bus1_gpg5_6_7': arch/arm/plat-s3c24xx/spi-bus1-gpg5_6_7.c:25: error: implicit declaration of function 's3c2410_gpio_cfgpin' arch/arm/plat-s3c24xx/spi-bus1-gpg5_6_7.c:28: error: implicit declaration of function 's3c2410_gpio_pullup' arch/arm/plat-s3c24xx/spi-bus0-gpe11_12_13.c: In function 's3c24xx_spi_gpiocfg_bus0_gpe11_12_13': arch/arm/plat-s3c24xx/spi-bus0-gpe11_12_13.c:25: error: implicit declaration of function 's3c2410_gpio_cfgpin' arch/arm/plat-s3c24xx/spi-bus0-gpe11_12_13.c:28: error: implicit declaration of function 's3c2410_gpio_pullup' Signed-off-by: Ben Dooks <ben@simtec.co.uk> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * | [ARM] S3C: Remove unused CONFIG_DEBUG_S3C_PORTBen Dooks2009-06-234-11/+0
| | | | | | | | | | | | | | | | | | | | | Remove the unused CONFIG_DEBUG_S3C_PORT as we currently only have support for using the S3C UARTs via the low-level debug code. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * | [ARM] S3C24XX: Fix use of CONFIG_S3C24XX_PWMBen Dooks2009-06-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CONFIG_S3C24XX_PWM was defined in arch/arm/plat-s3c24xx/Kconfig but not used anywhere else as the corresponding makefile used CONFIG_HAVE_PWM (selected by CONFIG_S3C24XX_PWM) to compile the PWM driver. Change the makefile to use CONFIG_S3C24XX_PWM to compile this driver to ensure it is only build when needed. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
* | | Merge branch 'omap-fixes' of ↵Russell King2009-06-2514-22/+108
|\ \ \ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
| * | | OMAP: Fix IOMEM macro for assemblyTony Lindgren2009-06-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Otherwise IOMEM calculations can fail. Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | OMAP2/3: Initialize gpio debounce registerjanboe2009-06-231-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some bootloader may initialize debounce register and this will make dbclk not consist with the debounce register after linux kernel boot up. Signed-off-by: janboe <janboe.ye@gmail.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | OMAP: IOMMU: function flush_iotlb_page is not flushing correct entryFernando Guzman Lugo2009-06-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The function flush_iotlb_page is not loading the CAM register with the correct entry to be flushed, so it is flushing other entry Signed-off-by: Fernando Guzman Lugo <x0095840@ti.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | OMAP3: RX51: Use OneNAND sync read / writeAdrian Hunter2009-06-231-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Use OneNAND sync read / write Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | OMAP2/3: gpmc-onenand: correct use of async timingsAdrian Hunter2009-06-231-2/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use async timings when sync timings are not requested. Also ensure that OneNAND is in async mode when async timings are used. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | OMAP3: DMA: Enable idlemodes for DMA OCPKalle Jokiniemi2009-06-232-0/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch enables MStandby smart-idle mode, autoidle smartidle mode, and the autoidle bit for DMA4_OCP_SYSCONFIG. Signed-off-by: Kalle Jokiniemi <ext-kalle.jokiniemi@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Kevin Hilman <khilman@ti.deeprootsystems.com>
| * | | OMAP3: SRAM size fix for HS/EMU devicesTero Kristo2009-06-231-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SRAM size fix for HS/EMU devices Signed-off-by: Tero Kristo <tero.kristo@nokia.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | OMAP2/3: Add omap_type() for determining GP/EMU/HSKevin Hilman2009-06-232-11/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The omap_type() function is added and returns the DEVICETYPE field of the CONTROL_STATUS register. The result can be used for conditional code based on whether device is GP (general purpose), EMU or HS (high security). Also move the type defines so omap1 code compile does not require ifdefs for sections using these defines. This code is needed for the following fix to set the SRAM size correctly for HS omaps. Also at least PM and watchdog code will need this function. Signed-off-by: Kevin Hilman <khilman@ti.deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | OMAP2/3: omap mailbox: platform_get_irq() error ignoredRoel Kluin2009-06-231-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | platform_get_irq may return -ENXIO. but struct omap_mbox mbox_dsp_info.irq is unsigned, so the error was not noticed. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | OMAP2/3: mmc-twl4030: use correct controller in twl_mmc23_set_powerGrazvydas Ignotas2009-06-231-1/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | twl_mmc23_set_power() has MMC2 twl_mmc_controller hardcoded in it, which breaks MMC3. Find the right controller to use instead. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | OMAP1: remove duplicated #includeHuang Weiyi2009-06-231-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove duplicated #include in arch/arm/mach-omap1/board-nokia770.c. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | OMAP1: Fix N770 MMC supportAndrew de Quincey2009-06-231-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some of the N770's MMC configuration options seem to have been dropped. This patch adds them back in again. Note that only the .ocr_mask change was /critical/, but I've added the .max_freq setting back as well, as the original sources had it. Can anyone confirm if this is unnecessary? Secondly, there is support in the original code for a 4wire/higher speed mode. As I don't have the requisite N770 hardware (I think it was a rev2 N770?) to test this, I can't really add it back. Signed-off-by: Andrew de Quincey <adq@lidskialf.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | | OMAP1: Fix compilation of arch/arm/mach-omap1/mailbox.cJonathan McDowell2009-06-231-1/+1
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the positioning of " in MODULE_AUTHOR, which is currently causing a build failure on latest git with CONFIG_OMAP_MBOX_FWK=m; the original breakage appears to date from the end of last year in a5abbbe52b7e89a7633319c5417bd4331f7ac8ed Signed-Off-By: Jonathan McDowell <noodles@earth.li> Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* | | Linux 2.6.31-rc1Linus Torvalds2009-06-241-2/+2
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* | | Revert "PCI: use ACPI _CRS data by default"Linus Torvalds2009-06-245-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 9e9f46c44e487af0a82eb61b624553e2f7118f5b. Quoting from the commit message: "At this point, it seems to solve more problems than it causes, so let's try using it by default. It's an easy revert if it ends up causing trouble." And guess what? The _CRS code causes trouble. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge git://git.infradead.org/battery-2.6Linus Torvalds2009-06-248-17/+420
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.infradead.org/battery-2.6: da9030_battery: Fix race between event handler and monitor Add MAX17040 Fuel Gauge driver w1: ds2760_battery: add support for sleep mode feature w1: ds2760: add support for EEPROM read and write ds2760_battery: cleanups in ds2760_battery_probe()
| * | | da9030_battery: Fix race between event handler and monitorMike Rapoport2009-06-091-7/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are cases when charging monitor and the event handler try to change the charger state simultaneously. For instance, a charger is connected to the system, there's the detection event and the event handler tries to enable charging. It is possible that the periodic charging monitor runs at the same time and it still thinks there's no external charger. So it tries to disable the charging. As the result, even if the conditions necessary to charge the battery hold, there will be no actual charging. The patch changes the event handler so that instead of enabling/ disabling the charger immediately it would rather make the monitor run. The monitor code then decides what should be the charger state. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
| * | | Add MAX17040 Fuel Gauge driverMinkyu Kang2009-06-094-1/+338
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The MAX17040 is a I2C interfaced Fuel Gauge systems for lithium-ion batteries This patch adds support the MAX17040 Fuel Gauge Signed-off-by: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
| * | | w1: ds2760_battery: add support for sleep mode featureDaniel Mack2009-06-082-0/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds support for ds2760's sleep mode feature. With this feature enabled, the chip enters a deep sleep mode and disconnects from the battery when the w1 line is held down for more than 2 seconds. This new behaviour can be switched on and off using a new module parameter. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Szabolcs Gyurko <szabolcs.gyurko@tlt.hu> Acked-by: Matt Reimer <mreimer@vpop.net> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
| * | | w1: ds2760: add support for EEPROM read and writeDaniel Mack2009-06-082-0/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to modify the DS2762's status registers and to add support for sleep mode, there is need for functions to write the internal EEPROM. Signed-off-by: Daniel Mack <daniel@caiaq.de> Acked-by: Matt Reimer <mreimer@vpop.net> Acked-by: Szabolcs Gyurko <szabolcs.gyurko@tlt.hu> Acked-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
| * | | ds2760_battery: cleanups in ds2760_battery_probe()Daniel Mack2009-06-081-9/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Removed struct ds2760_platform_data which wasn't defined anywhere. Indentation cleanups. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Szabolcs Gyurko <szabolcs.gyurko@tlt.hu> Acked-by: Matt Reimer <mreimer@vpop.net> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
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*-. \ \ \ Merge branches 'for-linus' of ↵Linus Torvalds2009-06-246-18/+23
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/{vfs-2.6,audit-current} * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: another race fix in jfs_check_acl() Get "no acls for this inode" right, fix shmem breakage inline functions left without protection of ifdef (acl) * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current: audit: inode watches depend on CONFIG_AUDIT not CONFIG_AUDIT_SYSCALL
| | * | | | audit: inode watches depend on CONFIG_AUDIT not CONFIG_AUDIT_SYSCALLEric Paris2009-06-241-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Even though one cannot make use of the audit watch code without CONFIG_AUDIT_SYSCALL the spaghetti nature of the audit code means that the audit rule filtering requires that it at least be compiled. Thus build the audit_watch code when we build auditfilter like it was before cfcad62c74abfef83762dc05a556d21bdf3980a2 Clearly this is a point of potential future cleanup.. Reported-by: Frans Pop <elendil@planet.nl> Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | | | another race fix in jfs_check_acl()Al Viro2009-06-241-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | | | Get "no acls for this inode" right, fix shmem breakageAl Viro2009-06-244-10/+13
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | | | inline functions left without protection of ifdef (acl)Markus Trippelsdorf2009-06-241-1/+2
| |/ / / / | | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | Merge branch 'futexes-for-linus' of ↵Linus Torvalds2009-06-241-21/+24
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'futexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: futex: Fix the write access fault problem for real
| * | | | | futex: Fix the write access fault problem for realThomas Gleixner2009-06-241-21/+24
| |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 64d1304a64 (futex: setup writeable mapping for futex ops which modify user space data) did address only half of the problem of write access faults. The patch was made on two wrong assumptions: 1) access_ok(VERIFY_WRITE,...) would actually check write access. On x86 it does _NOT_. It's a pure address range check. 2) a RW mapped region can not go away under us. That's wrong as well. Nobody can prevent another thread to call mprotect(PROT_READ) on that region where the futex resides. If that call hits between the get_user_pages_fast() verification and the actual write access in the atomic region we are toast again. The solution is to not rely on access_ok and get_user() for any write access related fault on private and shared futexes. Instead we need to fault it in with verification of write access. There is no generic non destructive write mechanism which would fault the user page in trough a #PF, but as we already know that we will fault we can as well call get_user_pages() directly and avoid the #PF overhead. If get_user_pages() returns -EFAULT we know that we can not fix it anymore and need to bail out to user space. Remove a bunch of confusing comments on this issue as well. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@kernel.org
* | | | | SLUB: Don't pass __GFP_FAIL for the initial allocationPekka Enberg2009-06-241-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SLUB uses higher order allocations by default but falls back to small orders under memory pressure. Make sure the GFP mask used in the initial allocation doesn't include __GFP_NOFAIL. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | Don't warn about order-1 allocations with __GFP_NOFAILLinus Torvalds2009-06-241-2/+2
|/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Traditionally, we never failed small orders (even regardless of any __GFP_NOFAIL flags), and slab will allocate order-1 allocations even for small allocations that could fit in a single page (in order to avoid excessive fragmentation). Maybe we should remove this warning entirely, but before making that judgement, at least limit it to bigger allocations. Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2009-06-2463-492/+996
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: Staging: octeon-ethernet: Fix race freeing transmit buffers. Staging: octeon-ethernet: Convert to use net_device_ops. MIPS: Cavium: Add CPU hotplugging code. MIPS: SMP: Allow suspend and hibernation if CPU hotplug is available MIPS: Add arch generic CPU hotplug DMA: txx9dmac: use dma_unmap_single if DMA_COMPL_{SRC,DEST}_UNMAP_SINGLE set MIPS: Sibyte: Fix build error if CONFIG_SERIAL_SB1250_DUART is undefined. MIPS: MIPSsim: Fix build error if MSC01E_INT_BASE is undefined. MIPS: Hibernation: Remove SMP TLB and cacheflushing code. MIPS: Build fix - include <linux/smp.h> into all smp_processor_id() users. MIPS: bug.h Build fix - include <linux/compiler.h>.
| * | | | Staging: octeon-ethernet: Fix race freeing transmit buffers.David Daney2009-06-244-66/+106
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The existing code had the following race: Thread-1 Thread-2 inc/read in_use inc/read in_use inc tx_free_list[qos].len inc tx_free_list[qos].len The actual in_use value was incremented twice, but thread-1 is going to free memory based on its stale value, and will free one too many times. The result is that memory is freed back to the kernel while its packet is still in the transmit buffer. If the memory is overwritten before it is transmitted, the hardware will put a valid checksum on it and send it out (just like it does with good packets). If by chance the TCP flags are clobbered but not the addresses or ports, the result can be a broken TCP stream. The fix is to track the number of freed packets in a single location (a Fetch-and-Add Unit register). That way it can never get out of sync with itself. We try to free up to MAX_SKB_TO_FREE (currently 10) buffers at a time. If fewer are available we adjust the free count with the difference. The action of claiming buffers to free is atomic so two threads cannot claim the same buffers. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | Staging: octeon-ethernet: Convert to use net_device_ops.David Daney2009-06-2410-396/+390
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the driver to use net_device_ops as it is now mandatory. Also compensate for the removal of struct sk_buff's dst field. The changes are mostly mechanical, the content of ethernet-common.c was moved to ethernet.c and ethernet-common.{c,h} are removed. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | MIPS: Cavium: Add CPU hotplugging code.Ralf Baechle2009-06-245-2/+365
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Thanks to Cavium Inc. for the code contribution and help. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | MIPS: SMP: Allow suspend and hibernation if CPU hotplug is availableRalf Baechle2009-06-241-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The SMP implementation of suspend and hibernate depends on CPU hotplugging. In the past we didn't have CPU hotplug so suspend and hibernation were not possible on SMP systems. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | MIPS: Add arch generic CPU hotplugRalf Baechle2009-06-247-7/+78
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Each platform has to add support for CPU hotplugging itself by providing suitable definitions for the cpu_disable and cpu_die of the smp_ops methods and setting SYS_SUPPORTS_HOTPLUG_CPU. A platform should only set SYS_SUPPORTS_HOTPLUG_CPU once all it's smp_ops definitions have the necessary changes. This patch contains the changes to the dummy smp_ops definition for uni-processor systems. Parts of the code contributed by Cavium Inc. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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