- 09 Mar, 2012 2 commits
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Stephen Boyd authored
WARNING: vmlinux.o(.text+0xfcf6e): Section mismatch in reference from the function ram_console_driver_probe() to the function .init.text:persistent_ram_init_ringbuffer() The function ram_console_driver_probe() references the function __init persistent_ram_init_ringbuffer(). This is often because ram_console_driver_probe lacks a __init annotation or the annotation of persistent_ram_init_ringbuffer is wrong. Move this driver to platform_driver_probe() because ram console devices aren't going to be added and removed at runtime. Also shorten the probe function name since driver is redundant and makes the function name long. Cc: Android Kernel Team <kernel-team@android.com> Cc: John Stultz <john.stultz@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alexandru Guduleasa authored
Fix the following spelling errors: inital -> initial continous -> continuous aquisition -> acquisition aquisitions -> acquisitions immidiately -> immediately Signed-off-by: Alexandru Guduleasa <alexandru.guduleasa@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 08 Mar, 2012 12 commits
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Masanari Iida authored
Correct spelling "interal" to "internal" in drivers/staging/crystalhd/crystalhd_hw.c Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Nick Kralevich authored
The Linux kernel has a setting called dmesg_restrict. When true, only processes with CAP_SYSLOG can view the kernel dmesg logs. This helps prevent leaking of kernel information into user space. On Android, it's possible to bypass these restrictions by viewing /proc/last_kmsg. This change makes /proc/last_kmsg require the same permissions as dmesg. CC: Android Kernel Team <kernel-team@android.com> Signed-off-by: Nick Kralevich <nnk@google.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Colin Cross authored
If the persistent ram buffer is not available, ram_console_late_init would crash when dereferencing ram_console_zone. Return early if ram console was not initialized. CC: Android Kernel Team <kernel-team@android.com> Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Colin Cross authored
Add the notrace attribute to persistent_ram_write and the non-ecc functions that it calls to allow persistent_ram to be used for ftracing (only when ecc is disabled). CC: Greg KH <gregkh@linuxfoundation.org> CC: Android Kernel Team <kernel-team@android.com> Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Colin Cross authored
Allow persistent_ram_write to be called on multiple cpus at the same time, as long as ecc is not in use. Uses atomics for the buffer->start and buffer->size counters. [jstultz: Fix up some pr_info casting issues on 64bit] CC: Greg KH <gregkh@linuxfoundation.org> CC: Android Kernel Team <kernel-team@android.com> Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Colin Cross authored
Replace the ioremapped memory passed in from the drivers with a memblock_reserve and vmap. Adds a new function, persistent_ram_early_init, designed to be called from the machine init_early callback, that calls memblock_remove and saves the provided persistent ram area layout. Drivers only pass in their struct device * and ecc settings. Locating and mapping the memory is now handled entirely within persistent_ram. Also, convert ram_console to the new persistent_ram_init parameters that only take a struct device * and ecc settings. [jstultz: Fix pr_info casting issues on 64bit, folded two patches as the build breaks if they are apart. Also replaced phys_to_page() w/ pfn_to_page(addr>>PAGE_SHIFT), as phys_to_page is only on a few arches.] CC: Greg KH <gregkh@linuxfoundation.org> CC: Android Kernel Team <kernel-team@android.com> Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Colin Cross authored
Remove CONFIG_ANDROID_RAM_CONSOLE_ERROR_CORRECTION and related #ifdefs. Also allow persistent ram zones without ecc enabled. For some use cases, like the data portion of the upcoming persistent_vars patches, or a persistent ftrace ringbuffer, ecc on every update is too expensive. CC: Greg KH <gregkh@linuxfoundation.org> CC: Android Kernel Team <kernel-team@android.com> Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Colin Cross authored
Split ram_console into two halves. persistent_ram is a set of apis that handle a block of memory that does not get erased across a reboot. It provides functions to fill it as a single buffer or a ring buffer, and to extract the old data after a reboot. It handles ecc on the data to correct bit errors introduced during reboot. ram_console is now a small wrapper around persistent_ram that feeds console data into the ringbuffer, and exports the old data to /proc/last_kmsg after a reboot. [jstultz: Moved persistent_ram.h to staging dir] CC: Greg KH <gregkh@linuxfoundation.org> CC: Android Kernel Team <kernel-team@android.com> Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Colin Cross authored
Equivalent functionality can be obtained with loglevel=15 CC: Android Kernel Team <kernel-team@android.com> Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Colin Cross authored
Early ramconsole is not very useful, an early crash will prevent getting the logged data out on the next boot, and CONFIG_DEBUG_LL=y will get the same information. Drop it to simplify a future refactoring. CC: Android Kernel Team <kernel-team@android.com> Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Colin Cross authored
Don't store the bootinfo string and the ecc status string with the recovered old log data. This will simplify refactoring the persistent ram code out of the ram console code later. CC: Android Kernel Team <kernel-team@android.com> Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Dima Zavin authored
We want to ensure that we get all the console messages, even ones that occur while the printing CPU is not yet online. [jstultz: tweaked commit subject line] CC: Android Kernel Team <kernel-team@android.com> Signed-off-by: Dima Zavin <dima@android.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 07 Mar, 2012 23 commits
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Tomas Winkler authored
In mei_irq_thread_read_bus_message we reused mei_hdr allocated on read buffer to write the stop message. There is no bug associated with this but for code clarity we use write buffer also for message header. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rob Clark authored
Deal with the case of buffers with virtual stride larger than one page in fault_2d(). Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Andy Gross authored
This patch splits the DMM off into a separate sub-device, in order to utilize the platform device information that was created as part of the OMAP hwmod entry for the DMM. The driver probe function queries the iomem resource and IRQ using standard platform_get functions. The OMAP DRM driver now calls the platform_driver_register() function for the subordinate DMM driver inside its probe function. This guarantees the required order for the DMM and ensures the DMM resources are available for use by the DRM driver. Signed-off-by: Andy Gross <andy.gross@ti.com> Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Andy Gross authored
Added check for valid device information before dumping debugfs information. Signed-off-by: Andy Gross <andy.gross@ti.com> Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Andy Gross authored
OMAP3 does not contain a DMM/Tiler block. As such, we should not be exposing any DMM debugfs entries on OMAP3 platforms. Added inline helper function to verify existence of DMM. Signed-off-by: Andy Gross <andy.gross@ti.com> Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rob Clark authored
Add some additional debugfs file to aid in tracking buffer usage. Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rob Clark authored
When flipping, defer unpinning until scanout completes, as indicated by the appropriate END_WIN irq. This also re-organizes things a bit, in replacing omap_fb_{pin,unpin} with omap_fb_replace(), to make it easier to add support for scanout synchronized DMM refill mode (flipping by just reprogramming DMM synchronized with DSS scanout). Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rob Clark authored
Now that 'struct drm_plane' has a pixel_format field, use that. And fix a minor typo. Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rob Clark authored
If fbcon calls us from atomic context, push the work off to the workqueue to avoid calling into the gem/dmm code in an atomic context. Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rob Clark authored
Add a workqueue for omapdrm driver, which is needed for at least a couple things currently: (1) moving omap_gem_roll() to a non-atomic context, (2) synchronizing page flips w/ DSS scanout related irq's (in particular not unmapping previous buffer until DSS finishes scanout). Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rob Clark authored
Get the supported formats for a plane from ovl's supported_modes bitmask. Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Grant Grundler authored
tsl2563 probe function has two minor issues with it's error handling paths: 1) it is silent (did not report errors to dmesg) 2) did not return failure code (mixed up use of ret and err) and two major issues: 3) goto fail2 would corrupt a free memory pool ("double free") 4) device registration failure did NOT cancel/flush delayed work. (and thus dereference a freed data structure later) The "double free" is subtle and was introduced with this change: Author: Jonathan Cameron <jic23@cam.ac.uk> Date: Mon Apr 18 12:58:55 2011 +0100 staging:iio:tsl2563 take advantage of new iio_device_allocate private data. Originally, chip was allocated seperately. Now it's appended to the indio_dev by iio_allocate_device(sizeof(*chip)). So we only need one kfree call as well (in iio_free_device()). Gory details of tracking this down are here: http://crosbug.com/26819 Despite iio_device_registration failing, system can at least now boot. Will follow up with a fix to "double register : in_intensity_both_raw" error that is included in the bug report. Signed-off-by: Grant Grundler <grundler@chromium.org> Acked-by: Jonathan Cameron <jic23@kernel.org> Reviewed-by: Bryan Freed <bfreed@chromium.org> Reviewed-by: Benson Leung <bleung@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Larry Finger authored
The patch 2080913e: "staging: r8712u: Fix regression caused by commit 8c213fa" from Feb 25, 2012, leads to the following Smatch complaint: drivers/staging/rtl8712/usb_intf.c:629 r871xu_dev_remove() warn: variable dereferenced before check 'padapter' (see line 625) The fix is to move the new statements inside the block where padapter is not NULL. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Seth Jennings authored
This patch removes the SPARSEMEM from the zsmalloc Kconfig Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com> Acked-by: Nitin Gupta <ngupta@vflare.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Seth Jennings authored
This patch ensures that the value of ZS_MIN_ALLOC_SIZE, for the PAGE_SIZE and MAX_PHYSMEM_BITS on the system, allows for all possible object ids in the lowest storage class to be encoded in the object handle. Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com> Acked-by: Nitin Gupta <ngupta@vflare.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Seth Jennings authored
This patch provides a way to determine or "set a reasonable value for" MAX_PHYSMEM_BITS in the case that it is not defined (i.e. !SPARSEMEM) Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com> Acked-by: Nitin Gupta <ngupta@vflare.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Seth Jennings authored
This patch moves where max_zspage_order is declared and changes its meaning. "Order" typically implies 2^order of something; however, it is currently being used as the "maximum number of single pages in a zspage". To add clarity, ZS_MAX_ZSPAGE_ORDER is now used to calculate ZS_MAX_PAGES_PER_ZSPAGE, which is 2^ZS_MAX_ZSPAGE_ORDER and is the upper bound on the number of pages in a zspage. Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com> Acked-by: Nitin Gupta <ngupta@vflare.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Seth Jennings authored
This patch moves the definitions of _PFN_BITS, OBJ_INDEX_BITS and OBJ_INDEX_MASK from zsmalloc-main.c to zsmalloc_int.h They will be needed to determine ZS_MIN_ALLOC_SIZE in the next patch Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com> Acked-by: Nitin Gupta <ngupta@vflare.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Seth Jennings authored
zcache cannot currently be loaded as a module. However the Kconfig allows it to be built as a module; something that the user probably does not intend since the module is not loadable. This patch switches zcache from a tristate to a bool in the Kconfig Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com> Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Lars-Peter Clausen authored
commit e553f182 ("staging: iio: core: Introduce debugfs support, add support for direct register access") added a '#if defined(CONFIG_DEBUG_FS)' around iio_read_channel_ext_info and iio_write_channel_ext_info causing the following compile error if CONFIG_DEBUG_FS is not defined. drivers/staging/iio/industrialio-core.c:621:11: error: 'iio_read_channel_ext_info' undeclared (first use in this function) drivers/staging/iio/industrialio-core.c:623:11: error: 'iio_write_channel_ext_info' undeclared (first use in this function) This patch fixes the issue by moving the functions out of the '#if defined(CONFIG_DEBUG_FS)' section again. Reported-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Greg Kroah-Hartman authored
Fix compiler warning about the type of the module parameter. Cc: San Mehat <san@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Paul E. McKenney authored
The lowmemorykiller registers an atomic notifier for notfication of when the task is freed. From this atomic notifier callback, it removes the atomic notifier via task_free_unregister(). This is incorrect because atomic_notifier_chain_unregister() calls syncronize_rcu(), which can sleep, which shouldn't be done from an atomic notifier. Fix this by registering the notifier during init, and only unregister it if the lowmemorykiller is unloaded. Rebased to -next by Paul E. McKenney. Rebased to -next again by Anton Vorontsov. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Christian Bejram <christian.bejram@stericsson.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reported-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Zhengwang Ruan authored
GCC warns that module_param_named() indirectly returns a bool type value which is different from 'int' type binder_debug_no_lock declared. Change it to bool because it is a internal switch for debugging. Signed-off-by: Zhengwang Ruan <ruan.zhengwang@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 03 Mar, 2012 3 commits
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Greg Kroah-Hartman authored
The kernel already has a debug allocator, no need to have one unique to a single driver. So delete it, replace with kfree, kmalloc, and, in a few places that need it, kzalloc(). Cc: Chris Kelly <ckelly@ozmodevices.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Kevin McKinney authored
Memory is being allocated by kmalloc and stored in variable pstAddIndication. However, this memory is not being freed in all cases. Therefore, this patch frees it on several exit paths. This patch also removes a whitespace. Signed-off-by: Kevin McKinney <klmckinney1@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Martin Krause authored
It seems the USB device ID 0bda:8192 is wrongly assigned to the RTL8192SU chip and not to the RTL8191SU chip in the USB database. So this patch moves this device ID from the rtl8192u staging driver to the rtl8712 staging driver. This patch was tested with a Radicom WIFIHU embedded wireless module with a RTL8191SU chip and the USB device ID 0bda:8192. Without the patch the rtl8192u driver claims this device, but it does not work. With the patch the rtl8712 driver services this device and it works. Signed-off-by: Martin Krause <martin.krause@tqs.de> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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