- 24 May, 2015 11 commits
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Luis R. Rodriguez authored
We currently use flexible arrays with a char at the end for the remaining internal firmware name uses. There are two limitations with the way we use this. Since we're using a flexible array for a string on the struct if we wanted to use two strings it means we'd have a disjoint means of handling the strings, one using the flexible array, and another a char * pointer. We're also currently not using 'const' for the string. We wish to later extend some firmware data structures with other string/char pointers, but we also want to be very pedantic about const usage. Since we're going to change things to use 'const' we might as well also address unified way to use multiple strings on the structs. Replace the flexible array practice for strings with kstrdup_const() and kfree_const(), this will avoid allocations when the vmlinux .rodata is used, and just allocate a new proper string for us when needed. This also means we can simplify the struct allocations by removing the string length from the allocation size computation, which would otherwise get even more complicated when supporting multiple strings. Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: David Howells <dhowells@redhat.com> Cc: Ming Lei <ming.lei@canonical.com> Cc: Seth Forshee <seth.forshee@canonical.com> Cc: Kyle McMartin <kyle@kernel.org> Signed-off-by:
Luis R. Rodriguez <mcgrof@suse.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Luis R. Rodriguez authored
Asynchronous firmware loading copies the pointer to the name passed as an argument only to be scheduled later and used. This behaviour works well for synchronous calling but in asynchronous mode there's a chance the caller could immediately free the passed string after making the asynchronous call. This could trigger a use after free having the kernel look on disk for arbitrary file names. In order to force-test the issue you can use a test-driver designed to illustrate this issue on github [0], use the next-20150505-fix-use-after-free branch. With this patch applied you get: [ 283.512445] firmware name: test_module_stuff.bin [ 287.514020] firmware name: test_module_stuff.bin [ 287.532489] firmware found Without this patch applied you can end up with something such as: [ 135.624216] firmware name: \xffffff80BJ [ 135.624249] platform fake-dev.0: Direct firmware load for \xffffff80Bi failed with error -2 [ 135.624252] No firmware found [ 135.624252] firmware found Unfortunatley in the worst and most common case however you can typically crash your system with a page fault by trying to free something which you cannot, and/or a NULL pointer dereference [1]. The fix and issue using schedule_work() for asynchronous runs is generalized in the following SmPL grammar patch, when applied to next-20150505 only the firmware_class code is affected. This grammar patch can and should further be generalized to vet for for other kernel asynchronous mechanisms. @ calls_schedule_work @ type T; T *priv_work; identifier func, work_func; identifier work; identifier priv_name, name; expression gfp; @@ func(..., const char *name, ...) { ... priv_work = kzalloc(sizeof(T), gfp); ... - priv_work->priv_name = name; + priv_work->priv_name = kstrdup_const(name, gfp); ... (... when any if (...) { ... + kfree_const(priv_work->priv_name); kfree(priv_work); ... } ) ... when any INIT_WORK(&priv_work->work, work_func); ... schedule_work(&priv_work->work); ... } @ the_work_func depends on calls_schedule_work @ type calls_schedule_work.T; T *priv_work; identifier calls_schedule_work.work_func; identifier calls_schedule_work.priv_name; identifier calls_schedule_work.work; identifier some_work; @@ work_func(...) { ... priv_work = container_of(some_work, T, work); ... + kfree_const(priv_work->priv_name); kfree(priv_work); ... } [0] https://github.com/mcgrof/fake-firmware-test.git [1] The following kernel ring buffer splat: firmware name: test_module_stuff.bin firmware name: firmware found general protection fault: 0000 [#1] SMP Modules linked in: test(O) <...etc-it-does-not-matter> drm sr_mod cdrom xhci_pci xhci_hcd rtsx_pci mfd_core video button sg CPU: 3 PID: 87 Comm: kworker/3:2 Tainted: G O 4.0.0-00010-g22b5bb0-dirty #176 Hardware name: LENOVO 20AW000LUS/20AW000LUS, BIOS GLET43WW (1.18 ) 12/04/2013 Workqueue: events request_firmware_work_func task: ffff8800c7f8e290 ti: ffff8800c7f94000 task.ti: ffff8800c7f94000 RIP: 0010:[<ffffffff814a586c>] [<ffffffff814a586c>] fw_free_buf+0xc/0x40 RSP: 0000:ffff8800c7f97d78 EFLAGS: 00010286 RAX: ffffffff81ae3700 RBX: ffffffff816d1181 RCX: 0000000000000006 RDX: 0001ee850ff68500 RSI: 0000000000000246 RDI: c35d5f415e415d41 RBP: ffff8800c7f97d88 R08: 000000000000000a R09: 0000000000000000 R10: 0000000000000358 R11: ffff8800c7f97a7e R12: ffff8800c7ec1e80 R13: ffff88021e2d4cc0 R14: ffff88021e2dff00 R15: 00000000000000c0 FS: 0000000000000000(0000) GS:ffff88021e2c0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000034b8cd8 CR3: 000000021073c000 CR4: 00000000001407e0 Stack: ffffffff816d1181 ffff8800c7ec1e80 ffff8800c7f97da8 ffffffff814a58f8 000000000000000a ffffffff816d1181 ffff8800c7f97dc8 ffffffffa047002c ffff88021e2dff00 ffff8802116ac1c0 ffff8800c7f97df8 ffffffff814a65fe Call Trace: [<ffffffff816d1181>] ? __schedule+0x361/0x940 [<ffffffff814a58f8>] release_firmware+0x58/0x80 [<ffffffff816d1181>] ? __schedule+0x361/0x940 [<ffffffffa047002c>] test_mod_cb+0x2c/0x43 [test] [<ffffffff814a65fe>] request_firmware_work_func+0x5e/0x80 [<ffffffff816d1181>] ? __schedule+0x361/0x940 [<ffffffff8108d23a>] process_one_work+0x14a/0x3f0 [<ffffffff8108d911>] worker_thread+0x121/0x460 [<ffffffff8108d7f0>] ? rescuer_thread+0x310/0x310 [<ffffffff810928f9>] kthread+0xc9/0xe0 [<ffffffff81092830>] ? kthread_create_on_node+0x180/0x180 [<ffffffff816d52d8>] ret_from_fork+0x58/0x90 [<ffffffff81092830>] ? kthread_create_on_node+0x180/0x180 Code: c7 c6 dd ad a3 81 48 c7 c7 20 97 ce 81 31 c0 e8 0b b2 ed ff e9 78 ff ff ff 66 0f 1f 44 00 00 0f 1f 44 00 00 55 48 89 e5 41 54 53 <4c> 8b 67 38 48 89 fb 4c 89 e7 e8 85 f7 22 00 f0 83 2b 01 74 0f RIP [<ffffffff814a586c>] fw_free_buf+0xc/0x40 RSP <ffff8800c7f97d78> ---[ end trace 4e62c56a58d0eac1 ]--- BUG: unable to handle kernel paging request at ffffffffffffffd8 IP: [<ffffffff81093ee0>] kthread_data+0x10/0x20 PGD 1c13067 PUD 1c15067 PMD 0 Oops: 0000 [#2] SMP Modules linked in: test(O) <...etc-it-does-not-matter> drm sr_mod cdrom xhci_pci xhci_hcd rtsx_pci mfd_core video button sg CPU: 3 PID: 87 Comm: kworker/3:2 Tainted: G D O 4.0.0-00010-g22b5bb0-dirty #176 Hardware name: LENOVO 20AW000LUS/20AW000LUS, BIOS GLET43WW (1.18 ) 12/04/2013 task: ffff8800c7f8e290 ti: ffff8800c7f94000 task.ti: ffff8800c7f94000 RIP: 0010:[<ffffffff81092ee0>] [<ffffffff81092ee0>] kthread_data+0x10/0x20 RSP: 0018:ffff8800c7f97b18 EFLAGS: 00010096 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 000000000000000d RDX: 0000000000000003 RSI: 0000000000000003 RDI: ffff8800c7f8e290 RBP: ffff8800c7f97b18 R08: 000000000000bc00 R09: 0000000000007e76 R10: 0000000000000001 R11: 000000000000002f R12: ffff8800c7f8e290 R13: 00000000000154c0 R14: 0000000000000003 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88021e2c0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000028 CR3: 0000000210675000 CR4: 00000000001407e0 Stack: ffff8800c7f97b38 ffffffff8108dcd5 ffff8800c7f97b38 ffff88021e2d54c0 ffff8800c7f97b88 ffffffff816d1500 ffff880213d42368 ffff8800c7f8e290 ffff8800c7f97b88 ffff8800c7f97fd8 ffff8800c7f8e710 0000000000000246 Call Trace: [<ffffffff8108dcd5>] wq_worker_sleeping+0x15/0xa0 [<ffffffff816d1500>] __schedule+0x6e0/0x940 [<ffffffff816d1797>] schedule+0x37/0x90 [<ffffffff810779bc>] do_exit+0x6bc/0xb40 [<ffffffff8101898f>] oops_end+0x9f/0xe0 [<ffffffff81018efb>] die+0x4b/0x70 [<ffffffff81015622>] do_general_protection+0xe2/0x170 [<ffffffff816d74e8>] general_protection+0x28/0x30 [<ffffffff816d1181>] ? __schedule+0x361/0x940 [<ffffffff814a586c>] ? fw_free_buf+0xc/0x40 [<ffffffff816d1181>] ? __schedule+0x361/0x940 [<ffffffff814a58f8>] release_firmware+0x58/0x80 [<ffffffff816d1181>] ? __schedule+0x361/0x940 [<ffffffffa047002c>] test_mod_cb+0x2c/0x43 [test] [<ffffffff814a65fe>] request_firmware_work_func+0x5e/0x80 [<ffffffff816d1181>] ? __schedule+0x361/0x940 [<ffffffff8108d23a>] process_one_work+0x14a/0x3f0 [<ffffffff8108d911>] worker_thread+0x121/0x460 [<ffffffff8108d7f0>] ? rescuer_thread+0x310/0x310 [<ffffffff810928f9>] kthread+0xc9/0xe0 [<ffffffff81092830>] ? kthread_create_on_node+0x180/0x180 [<ffffffff816d52d8>] ret_from_fork+0x58/0x90 [<ffffffff81092830>] ? kthread_create_on_node+0x180/0x180 Code: 00 48 89 e5 5d 48 8b 40 c8 48 c1 e8 02 83 e0 01 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 8b 87 30 05 00 00 55 48 89 e5 <48> 8b 40 d8 5d c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 RIP [<ffffffff81092ee0>] kthread_data+0x10/0x20 RSP <ffff8800c7f97b18> CR2: ffffffffffffffd8 ---[ end trace 4e62c56a58d0eac2 ]--- Fixing recursive fault but reboot is needed! Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: David Howells <dhowells@redhat.com> Cc: Ming Lei <ming.lei@canonical.com> Cc: Seth Forshee <seth.forshee@canonical.com> Cc: Kyle McMartin <kyle@kernel.org> Generated-by: Coccinelle SmPL Signed-off-by: -
Luis R. Rodriguez authored
When direct firmware loading is used we iterate over a list of possible firmware paths and concatenate the desired firmware name with each path and look for the file there. Should the passed firmware name be too long we end up truncating the file we want to look for, the search however is still done. Add a check for truncation instead of looking for a truncated firmware filename. Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Ming Lei <ming.lei@canonical.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: David Howells <dhowells@redhat.com> Cc: Kyle McMartin <kyle@kernel.org> Signed-off-by:
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Luis R. Rodriguez authored
The request_firmware*() APIs uses __getname() to iterate over the list of paths possible for firmware to be found, the code however never checked for failure on __getname(). Although *very unlikely*, this can still happen. Add the missing check. There is still no checks on the concatenation of the path and filename passed, that requires a bit more work and subsequent patches address this. The commit that introduced this is abb139e7 ("firmware: teach the kernel to load firmware files directly from the filesystem"). mcgrof@ergon ~/linux (git::firmware-fixes) $ git describe --contains abb139e7 v3.7-rc1~120 Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Ming Lei <ming.lei@canonical.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: David Howells <dhowells@redhat.com> Cc: Kyle McMartin <kyle@kernel.org> Signed-off-by:
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Sudeep Holla authored
Commit 5590f319 ("drivers/core/of: Add symlink to device-tree from devices with an OF node") adds the symlink `of_node` for each device pointing to it's device tree node while creating/initialising it. However the devicetree sysfs is created and setup in of_init which is executed at core_initcall level. For all the devices created before of_init, the following error is thrown: "Error -2(-ENOENT) creating of_node link" Like many other components in driver model, initialize the sysfs support for OF/devicetree from driver_init so that it's ready before any devices are created. Fixes: 5590f319 ("drivers/core/of: Add symlink to device-tree from devices with an OF node") Suggested-by:
Rob Herring <robh+dt@kernel.org> Cc: Grant Likely <grant.likely@linaro.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
Sudeep Holla <sudeep.holla@arm.com> Tested-by:
Robert Schwebel <r.schwebel@pengutronix.de> Acked-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Will Deacon authored
s/hierarcy/hierarchy/ Maybe the typo will annoy people enough so that they add the missing nodes to their device-tree files, but I still think this is better off fixed. Signed-off-by:
Will Deacon <will.deacon@arm.com> Acked-by:
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Antonio Ospite authored
The sentence "Returns 0 on success or error" might be misinterpreted as "the function will always returns 0", make it less ambiguous. Also, use the word "failure" as the contrary of "success". Signed-off-by:
Antonio Ospite <ao2@ao2.it> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Signed-off-by:
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Dmitry Torokhov authored
Commit f2411da7 ("driver-core: add driver module asynchronous probe support") broke build in case modules are disabled, because in this case "struct module" is not defined and we can't dereference it. Let's define module_requested_async_probing() helper and stub it out if modules are disabled. Reported-by:
kbuild test robot <fengguang.wu@intel.com> Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by:
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Dmitry Torokhov authored
It is only used within dd.c and thus need not be global. Reported-by:
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Wolfram Sang authored
My kernfs patch slipped through because I didn't know which maintainer to CC. Have been told it's gkh. Add an entry, and sort the file patterns while we are here. Signed-off-by:
Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by:
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Wolfram Sang authored
Grabbing the parent is not happening anymore since 2010 (e72ceb8c "sysfs: Remove sysfs_get/put_active_two"). Remove this confusing comment. Signed-off-by:
Tejun Heo <tj@kernel.org> Signed-off-by:
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- 20 May, 2015 9 commits
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Dmitry Torokhov authored
Similarly to module_param_unsafe(), add the helper to be used by core code wishing to expose unsafe debugging or testing parameters that taint the kernel when set. Acked-by:
Rusty Russell <rusty@rustcorp.com.au> Signed-off-by:
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Luis R. Rodriguez authored
While testing asynchronous PCI probe on this driver I noticed it failed because the driver checks if any of the PCI devices have been bound to the driver after registering it, which obviously does not work if probing is asynchronous. While there are patches and discussions on how the driver should behave are ongoing, let's enforce synchronous probe for this driver for now. Reviewed-by:
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Dmitry Torokhov authored
Because platform_driver_probe() checks, after trying to register driver, if there are any devices that driver successfully bound to, driver's probe routine must be run synchronously. Signed-off-by:
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Luis R. Rodriguez authored
There are drivers that can not be probed asynchronously. One such group is platform drivers registered with platform_driver_probe(), which expects driver's probe routine be discarded after the driver has been registered and initial binding attempt executed. Also platform_driver_probe() an error when no devices were bound to the driver, allowing failing to load such driver module altogether. Other drivers do not work well with asynchronous probing because of driver bug or not optimal driver organization. To allow using such drivers even when user requests asynchronous probing as default boot strategy, let's allow them to opt out. Signed-off-by:
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Luis R. Rodriguez authored
Some init systems may wish to express the desire to have device drivers run their probe() code asynchronously. This implements support for this and allows userspace to request async probe as a preference through a generic shared device driver module parameter, async_probe. Implementation for async probe is supported through a module parameter given that since synchronous probe has been prevalent for years some userspace might exist which relies on the fact that the device driver will probe synchronously and the assumption that devices it provides will be immediately available after this. Signed-off-by:
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Dmitry Torokhov authored
Some devices take a long time when initializing, and not all drivers are suited to initialize their devices when they are open. For example, input drivers need to interrogate their devices in order to publish device's capabilities before userspace will open them. When such drivers are compiled into kernel they may stall entire kernel initialization. This change allows drivers request for their probe functions to be called asynchronously during driver and device registration (manual binding is still synchronous). Because async_schedule is used to perform asynchronous calls module loading will still wait for the probing to complete. Note that the end goal is to make the probing asynchronous by default, so annotating drivers with PROBE_PREFER_ASYNCHRONOUS is a temporary measure that allows us to speed up boot process while we validating and fixing the rest of the drivers and preparing userspace. This change is based on earlier patch by "Luis R. Rodriguez" <mcgrof@suse.com> Signed-off-by:
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Luis R. Rodriguez authored
This adds an extra argument onto parse_params() to be used as a way to make the unused callback a bit more useful and generic by allowing the caller to pass on a data structure of its choice. An example use case is to allow us to easily make module parameters for every module which we will do next. @ parse @ identifier name, args, params, num, level_min, level_max; identifier unknown, param, val, doing; type s16; @@ extern char *parse_args(const char *name, char *args, const struct kernel_param *params, unsigned num, s16 level_min, s16 level_max, + void *arg, int (*unknown)(char *param, char *val, const char *doing + , void *arg )); @ parse_mod @ identifier name, args, params, num, level_min, level_max; identifier unknown, param, val, doing; type s16; @@ char *parse_args(const char *name, char *args, const struct kernel_param *params, unsigned num, s16 level_min, s16 level_max, + void *arg, int (*unknown)(char *param, char *val, const char *doing + , void *arg )) { ... } @ parse_args_found @ expression R, E1, E2, E3, E4, E5, E6; identifier func; @@ ( R = parse_args(E1, E2, E3, E4, E5, E6, + NULL, func); | R = parse_args(E1, E2, E3, E4, E5, E6, + NULL, &func); | R = parse_args(E1, E2, E3, E4, E5, E6, + NULL, NULL); | parse_args(E1, E2, E3, E4, E5, E6, + NULL, func); | parse_args(E1, E2, E3, E4, E5, E6, + NULL, &func); | parse_args(E1, E2, E3, E4, E5, E6, + NULL, NULL); ) @ parse_args_unused depends on parse_args_found @ identifier parse_args_found.func; @@ int func(char *param, char *val, const char *unused + , void *arg ) { ... } @ mod_unused depends on parse_args_found @ identifier parse_args_found.func; expression A1, A2, A3; @@ - func(A1, A2, A3); + func(A1, A2, A3, NULL); Generated-by: Coccinelle SmPL Cc: cocci@systeme.lip6.fr Cc: Tejun Heo <tj@kernel.org> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Christoph Hellwig <hch@infradead.org> Cc: Felipe Contreras <felipe.contreras@gmail.com> Cc: Ewan Milne <emilne@redhat.com> Cc: Jean Delvare <jdelvare@suse.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Jani Nikula <jani.nikula@intel.com> Cc: linux-kernel@vger.kernel.org Reviewed-by: -
Rik van Riel authored
Currently there is no way to query which CPUs are in nohz_full mode from userspace. Export the CPU list running in nohz_full mode in sysfs, specifically in the file /sys/devices/system/cpu/nohz_full This can be used by system management tools like libvirt, openstack, and others to ensure proper task placement. Signed-off-by:
Rik van Riel <riel@redhat.com> Acked-by:
Mike Galbraith <umgwanakikbuti@gmail.com> Acked-by:
Chris Metcalf <cmetcalf@ezchip.com> Signed-off-by:
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Rik van Riel authored
After system bootup, there is no totally reliable way to see which CPUs are isolated, because the kernel may modify the CPUs specified on the isolcpus= kernel command line option. Export the CPU list that actually got isolated in sysfs, specifically in the file /sys/devices/system/cpu/isolated This can be used by system management tools like libvirt, openstack, and others to ensure proper placement of tasks. Suggested-by:
Li Zefan <lizefan@huawei.com> Signed-off-by:
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- 18 May, 2015 3 commits
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Linus Torvalds authored
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Peter Zijlstra authored
Two watchdog changes that came through different trees had a non conflicting conflict, that is, one changed the semantics of a variable but no actual code conflict happened. So the merge appeared fine, but the resulting code did not behave as expected. Commit 195daf66 ("watchdog: enable the new user interface of the watchdog mechanism") changes the semantics of watchdog_user_enabled, which thereafter is only used by the functions introduced by b3738d29 ("watchdog: Add watchdog enable/disable all functions"). There further appears to be a distinct lack of serialization between setting and using watchdog_enabled, so perhaps we should wrap the {en,dis}able_all() things in watchdog_proc_mutex. This patch fixes a s2r failure reported by Michal; which I cannot readily explain. But this does make the code internally consistent again. Reported-and-tested-by:
Michal Hocko <mhocko@suse.cz> Signed-off-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.infradead.org/linux-mtdLinus Torvalds authored
Pull MTD fixes from Brian Norris: "Two MTD fixes for 4.1: - readtest: the signal-handling code was clobbering the error codes we should be handling/reporting in this test, rendering it useless. Noticed by Coverity. - the common SPI NOR flash DT binding (merged for 4.1-rc1) is being revised, so let's change that before 4.1 is minted" * tag 'for-linus-20150516' of git://git.infradead.org/linux-mtd: Documentation: dt: mtd: replace "nor-jedec" binding with "jedec, spi-nor" mtd: readtest: don't clobber error reports
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- 17 May, 2015 4 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB fixes from Greg KH: "Here are some USB fixes and new device ids for 4.1-rc4. All are pretty minor, and have been in linux-next successfully" * tag 'usb-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb-storage: Add NO_WP_DETECT quirk for Lacie 059f:0651 devices Added another USB product ID for ELAN touchscreen quirks. xhci: gracefully handle xhci_irq dead device xhci: Solve full event ring by increasing TRBS_PER_SEGMENT to 256 xhci: fix isoc endpoint dequeue from advancing too far on transaction error usb: chipidea: debug: avoid out of bound read USB: visor: Match I330 phone more precisely USB: pl2303: Remove support for Samsung I330 USB: cp210x: add ID for KCF Technologies PRN device usb: gadget: remove incorrect __init/__exit annotations usb: phy: isp1301: work around tps65010 dependency usb: gadget: serial: fix re-ordering of tx data usb: gadget: hid: Fix static variable usage usb: gadget: configfs: Fix interfaces array NULL-termination usb: gadget: xilinx: fix devm_ioremap_resource() check usb: dwc3: dwc3-omap: correct the register macros
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyLinus Torvalds authored
Pull tty/serial fixes from Greg KH: "Here's some TTY and serial driver fixes for reported issues. All of these have been in linux-next successfully" * tag 'tty-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: pty: Fix input race when closing tty/n_gsm.c: fix a memory leak when gsmtty is removed Revert "serial/amba-pl011: Leave the TX IRQ alone when the UART is not open" serial: omap: Fix error handling in probe earlycon: Revert log warnings
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull staging / IIO driver fixes from Greg KH: "Here's some staging and iio driver fixes to resolve a number of reported issues. All of these have been in linux-next for a while" * tag 'staging-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (31 commits) iio: light: hid-sensor-prox: Fix memory leak in probe() iio: adc: cc10001: Add delay before setting START bit iio: adc: cc10001: Fix regulator_get_voltage() return value check iio: adc: cc10001: Fix incorrect use of power-up/power-down register staging: gdm724x: Correction of variable usage after applying ALIGN() iio: adc: cc10001: Fix the channel number mapping staging: vt6655: lock MACvWriteBSSIDAddress. staging: vt6655: CARDbUpdateTSF bss timestamp correct tsf counter value. staging: vt6655: vnt_tx_packet Correct TX order of OWNED_BY_NIC staging: vt6655: Fix 80211 control and management status reporting. staging: vt6655: implement IEEE80211_TX_STAT_NOACK_TRANSMITTED staging: vt6655: device_free_tx_buf use only ieee80211_tx_status_irqsafe staging: vt6656: use ieee80211_tx_info to select packet type. staging: rtl8712: freeing an ERR_PTR staging: sm750: remove incorrect __exit annotation iio: kfifo: Set update_needed to false only if a buffer was allocated iio: mcp320x: Fix occasional incorrect readings iio: accel: mma9553: check input value for activity period iio: accel: mma9553: add enable channel for activity iio: accel: mma9551_core: prevent buffer overrun ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull char/misc fix from Greg KH: "Here is one fix, in the extcon subsystem, that resolves a reported issue. It's been in linux-next for a number of weeks now, sorry for not getting it to you sooner" * tag 'char-misc-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: extcon: usb-gpio: register extcon device before IRQ registration
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- 16 May, 2015 9 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/rw/umlLinus Torvalds authored
Pull UML hostfs fix from Richard Weinberger: "This contains a single fix for a regression introduced in 4.1-rc1" * 'for-linus-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: hostfs: Use correct mask for file mode
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git://git.infradead.org/linux-ubifsLinus Torvalds authored
Pull UBI bufix from Richard Weinberger: "This contains a single bug fix for the UBI block driver" * tag 'upstream-4.1-rc4' of git://git.infradead.org/linux-ubifs: UBI: block: Add missing cache flushes
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4Linus Torvalds authored
Pull ext4 fixes from Ted Ts'o: "Fix a number of ext4 bugs; the most serious of which is a bug in the lazytime mount optimization code where we could end up updating the timestamps to the wrong inode" * tag 'for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: fix an ext3 collapse range regression in xfstests jbd2: fix r_count overflows leading to buffer overflow in journal recovery ext4: check for zero length extent explicitly ext4: fix NULL pointer dereference when journal restart fails ext4: remove unused function prototype from ext4.h ext4: don't save the error information if the block device is read-only ext4: fix lazytime optimization
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfsLinus Torvalds authored
Pull btrfs fixes from Chris Mason: "The first commit is a fix from Filipe for a very old extent buffer reuse race that triggered a BUG_ON. It hasn't come up often, I looked through old logs at FB and we hit it a handful of times over the last year. The rest are other corners he hit during testing" * 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: fix race when reusing stale extent buffers that leads to BUG_ON Btrfs: fix race between block group creation and their cache writeout Btrfs: fix panic when starting bg cache writeout after IO error Btrfs: fix crash after inode cache writeback failure
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git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds authored
Pull MIPS fixes from Ralf Baechle: "Seven small fixes. The shortlog below is a good description so no need to elaborate. It has sat in linux-next and survived the usual automated testing by Imagination's test farm" * 'master' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: tlb-r4k: Fix PG_ELPA comment MIPS: Fix up obsolete cpu_set usage MIPS: IP32: Fix build errors in reset code in DS1685 platform hook. MIPS: KVM: Fix unused variable build warning MIPS: traps: remove extra Tainted: line from __show_regs() output MIPS: Fix wrong CHECKFLAGS (sparse builds) with GCC 5.1 MIPS: Fix a preemption issue with thread's FPU defaults
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git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arcLinus Torvalds authored
Pull ARC fixes from Vineet Gupta. * tag 'arc-4.1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARC: inline cache flush toggle helpers ARC: With earlycon in use, retire EARLY_PRINTK ARC: unbork !LLSC build
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
Pull ARM SoC fixes from Arnd Bergmann: "Nothing frightening this time, just smaller fixes in a number of places. The other changes contained here are: MAINTAINERS file updates: - The mach-gemini maintainer is back in action and has a new git tree - Krzysztof Kozlowski has volunteered to be a new co-maintainer for the samsung platforms - updates to the files that belong to Marvell mvebu Bug fixes: - The largest changes are on omap2, but are only to avoid some harmless warnings and to fix reset on omap4 - a small regression fix on tegra - multiple fixes for incorrect IRQ affinity on vexpress - the missing system controller on arm64 juno is added - one revert of a patch that was accidentally applied twice for mach-rockchip - two clock related DT fixes for mvebu - a workaround for suspend with old DT binaries on new exynos kernels - Another fix for suspend on exynos, needs to be backported" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (21 commits) MAINTAINERS: Add dts entries for some of the Marvell SoCs MAINTAINERS: ARM: EXYNOS: Add Krzysztof Kozlowski as co-maintainer ARM: EXYNOS: Use of_machine_is_compatible instead of soc_is_exynos4 ARM: EXYNOS: Fix failed second suspend on Exynos4 Revert "ARM: rockchip: fix undefined instruction of reset_ctrl_regs" ARM: EXYNOS: Fix dereference of ERR_PTR returned by of_genpd_get_from_provider ARM: EXYNOS: Don't try to initialize suspend on old DT ARM: dts: Add keep-power-in-suspend to WiFi SDIO node for Peach Boards ARM: gemini: fix compiler warning due wrong data type ARM: vexpress/tc2: Add interrupt-affinity to the PMU node ARM: vexpress/ca9: Add interrupt-affinity to the PMU node ARM: vexpress/ca9: Add unified-cache property to l2 cache node ARM64: juno: add sp810 support and fix sp804 clock frequency ARM: Gemini: Maintainers update ARM: OMAP2+: Remove bogus struct clk comparison for timer clock ARM: dove: Add clock-names to CuBox Si5351 clk generator ARM: AM33xx+: hwmod: re-use omap4 implementations for reset functionality ARM: OMAP4+: PRM: add support for passing status register/bit info to reset ARM: AM43xx: hwmod: add VPFE hwmod entries ARM: mvebu: Fix the main PLL frequency on Armada 375, 38x and 39x SoCs ... -
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linuxLinus Torvalds authored
Pull thermal fixes from Zhang Rui: "Specifics: - fix an issue in intel_powerclamp driver that idle injection target is not accurately maintained on newer Intel CPUs. Package C8 to C10 states are introduced on these CPUs but they were not included in the package c-state residency calculation. From Jacob Pan. - fix a problem that package c-state idle injection was missing on Broadwell server, by adding its id to intel_powerclamp driver. From Jacob Pan. - a couple of small fixes and cleanups from Joe Perches, Mathias Krause, Dan Carpenter and Anand Moon" * 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: tools/thermal: tmon: fixed the 'make install' command thermal: rockchip: fix an error code thermal/powerclamp: fix missing newer package c-states thermal/intel_powerclamp: add id for broadwell server thermal/intel_powerclamp: add __init / __exit annotations thermal: Use bool function return values of true/false not 1/0 -
Linus Torvalds authored
Merge tag 'linux-kselftest-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fixes from Shuah Khan: "Urgent fix for Kselftest regression introduced in 4.1-rc1 by the new x86 test due to its hard dependency on 32-bit build environment. A set of 5 patches fix the make kselftest run and kselftest install" * tag 'linux-kselftest-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests, x86: Rework x86 target architecture detection selftests, x86: Remove useless run_tests rule selftests/x86: install tests selftest/x86: have no dependency on all when cross building selftest/x86: build both bitnesses
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- 15 May, 2015 4 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linuxLinus Torvalds authored
Pull parisc fixes from Helge Deller: "One important patch which fixes crashes due to stack randomization on architectures where the stack grows upwards (currently parisc and metag only). This bug went unnoticed on parisc since kernel 3.14 where the flexible mmap memory layout support was added by commit 9dabf60d. The changes in fs/exec.c are inside an #ifdef CONFIG_STACK_GROWSUP section and will not affect other platforms. The other two patches rename args of the kthread_arg() function and fixes a printk output" * 'parisc-4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc,metag: Fix crashes due to stack randomization on stack-grows-upwards architectures parisc: copy_thread(): rename 'arg' argument to 'kthread_arg' parisc: %pf is only for function pointers
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Brian Norris authored
In commit 8ff16cf7 ("Documentation: devicetree: m25p80: add "nor-jedec" binding"), we added a generic "nor-jedec" binding to catch all mostly-compatible SPI NOR flash which can be detected via the READ ID opcode (0x9F). This was discussed and reviewed at the time, however objections have come up since then as part of this discussion: http://lkml.kernel.org/g/20150511224646.GJ32500@ld-irv-0074 It seems the parties involved agree that "jedec,spi-nor" does a better job of capturing the fact that this is SPI-specific, not just any NOR flash. This binding was only merged for v4.1-rc1, so it's still OK to change the naming. At the same time, let's move the documentation to a better name. Next up: stop referring to code (drivers/mtd/devices/m25p80.c) from the documentation. Signed-off-by:
Brian Norris <computersforpeace@gmail.com> Cc: Marek Vasut <marex@denx.de> Cc: Rafał Miłecki <zajec5@gmail.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Cc: devicetree@vger.kernel.org Acked-by:
Stephen Warren <swarren@nvidia.com> Acked-by:
Geert Uytterhoeven <geert+renesas@glider.be> Acked-by:
Mark Rutland <mark.rutland@arm.com>
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James Hogan authored
The ELPA bit in PageGrain is all about large *physical* addresses, so correct the reference to "large virtual address" in the comment above where it is set for MIPS64. Signed-off-by:
James Hogan <james.hogan@imgtec.com> Cc: David Daney <ddaney@caviumnetworks.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10038/Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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Ezequiel Garcia authored
cpu_set was removed (along with a bunch of cpumask helpers) by commit 2f0f267e ("cpumask: remove deprecated functions."). Fix this by replacing cpu_set with cpumask_set_cpu. Without this fix the following error is triggered when CONFIG_MIPS_MT_FPAFF=y. arch/mips/kernel/smp-cps.c: In function 'cps_smp_setup': arch/mips/kernel/smp-cps.c:95:3: error: implicit declaration of function 'cpu_set' [-Werror=implicit-function-declaration] Fixes: 90db024f ("MIPS: smp-cps: cpu_set FPU mask if FPU present") Signed-off-by:
Ezequiel Garcia <ezequiel.garcia@imgtec.com> Acked-by:
Niklas Cassel <niklass@axis.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9912/Signed-off-by:
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