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2018-03-29staging: bcm2835-audio: Release resources on module_exit()Kirill Marinushkin1-29/+25
In the current implementation, `rmmod snd_bcm2835` does not release resources properly. It causes an oops when trying to list sound devices. This commit fixes it. The details WRT allocation / free are described below. Device structure WRT allocation: pdev \childdev[] \card \chip \pcm \ctl Allocation / register sequence: * childdev: devm_kzalloc - freed during driver detach * childdev: device_initialize - freed during device_unregister * pdev: devres_alloc - freed during driver detach * childdev: device_add - removed during device_unregister * pdev, childdev: devres_add - freed during driver detach * card: snd_card_new - freed during snd_card_free * chip: kzalloc - freed during kfree * card, chip: snd_device_new - freed during snd_device_free * chip: new_pcm - TODO: free pcm * chip: new_ctl - TODO: free ctl * card: snd_card_register - unregistered during snd_card_free Free / unregister sequence: * card: snd_card_free * card, chip: snd_device_free * childdev: device_unregister * chip: kfree Steps to reproduce the issue before this commit: ~~~~ $ rmmod snd_bcm2835 $ aplay -L [ 138.648130] Unable to handle kernel paging request at virtual address 7f1343c0 [ 138.660415] pgd = ad8f0000 [ 138.665567] [7f1343c0] *pgd=3864c811, *pte=00000000, *ppte=00000000 [ 138.674887] Internal error: Oops: 7 [#1] SMP ARM [ 138.683571] Modules linked in: sha256_generic cfg80211 rfkill snd_pcm snd_timer snd fixed uio_pdrv_genirq uio ip_tables x_tables ipv6 [last unloaded: snd_bcm2835 ] [ 138.706594] CPU: 3 PID: 463 Comm: aplay Tainted: G WC 4.15.0-rc1-v 7+ #6 [ 138.719833] Hardware name: BCM2835 [ 138.726016] task: b877ac00 task.stack: aebec000 [ 138.733408] PC is at try_module_get+0x38/0x24c [ 138.740813] LR is at snd_ctl_open+0x58/0x194 [snd] [ 138.748485] pc : [<801c4d5c>] lr : [<7f0e6b2c>] psr: 20000013 [ 138.757709] sp : aebedd60 ip : aebedd88 fp : aebedd84 [ 138.765884] r10: 00000000 r9 : 00000004 r8 : 7f0ed440 [ 138.774040] r7 : b7e469b0 r6 : 7f0e6b2c r5 : afd91900 r4 : 7f1343c0 [ 138.783571] r3 : aebec000 r2 : 00000001 r1 : b877ac00 r0 : 7f1343c0 [ 138.793084] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 138.803300] Control: 10c5387d Table: 2d8f006a DAC: 00000055 [ 138.812064] Process aplay (pid: 463, stack limit = 0xaebec210) [ 138.820868] Stack: (0xaebedd60 to 0xaebee000) [ 138.828207] dd60: 00000000 b848d000 afd91900 00000000 b7e469b0 7f0ed440 aebedda4 aebedd88 [ 138.842371] dd80: 7f0e6b2c 801c4d30 afd91900 7f0ea4dc 00000000 b7e469b0 aebeddcc aebedda8 [ 138.856611] dda0: 7f0e250c 7f0e6ae0 7f0e2464 b8478ec0 b7e469b0 afd91900 7f0ea388 00000000 [ 138.870864] ddc0: aebeddf4 aebeddd0 802ce590 7f0e2470 8090ab64 afd91900 afd91900 b7e469b0 [ 138.885301] dde0: afd91908 802ce4e4 aebede1c aebeddf8 802c57b4 802ce4f0 afd91900 aebedea8 [ 138.900110] de00: b7fa4c00 00000000 00000000 00000004 aebede3c aebede20 802c6ba8 802c56b4 [ 138.915260] de20: aebedea8 00000000 aebedf5c 00000000 aebedea4 aebede40 802d9a68 802c6b58 [ 138.930661] de40: b874ddd0 00000000 00000000 00000001 00000041 00000000 afd91900 aebede70 [ 138.946402] de60: 00000000 00000000 00000002 b7e469b0 b8a87610 b8d6ab80 801852f8 00080000 [ 138.962314] de80: aebedf5c aebedea8 00000001 80108464 aebec000 00000000 aebedf4c aebedea8 [ 138.978414] dea0: 802dacd4 802d970c b8a87610 b8d6ab80 a7982bc6 00000009 af363019 b9231480 [ 138.994617] dec0: 00000000 b8c038a0 b7e469b0 00000101 00000002 00000238 00000000 00000000 [ 139.010823] dee0: 00000000 aebedee8 00080000 0000000f aebedf3c aebedf00 802ed7e4 80843f94 [ 139.027025] df00: 00000003 00080000 b9231490 b9231480 00000000 00080000 af363000 00000000 [ 139.043229] df20: 00000005 00000002 ffffff9c 00000000 00080000 ffffff9c af363000 00000003 [ 139.059430] df40: aebedf94 aebedf50 802c6f70 802dac70 aebec000 00000000 00000001 00000000 [ 139.075629] df60: 00020000 00000004 00000100 00000001 7ebe577c 0002e038 00000000 00000005 [ 139.091828] df80: 80108464 aebec000 aebedfa4 aebedf98 802c7060 802c6e6c 00000000 aebedfa8 [ 139.108025] dfa0: 801082c0 802c7040 7ebe577c 0002e038 7ebe577c 00080000 00000b98 e81c8400 [ 139.124222] dfc0: 7ebe577c 0002e038 00000000 00000005 7ebe57e4 00a20af8 7ebe57f0 76f87394 [ 139.140419] dfe0: 00000000 7ebe55c4 76ec88e8 76df1d9c 60000010 7ebe577c 00000000 00000000 [ 139.156715] [<801c4d5c>] (try_module_get) from [<7f0e6b2c>] (snd_ctl_open+0x58/0x194 [snd]) [ 139.173222] [<7f0e6b2c>] (snd_ctl_open [snd]) from [<7f0e250c>] (snd_open+0xa8/0x14c [snd]) [ 139.189683] [<7f0e250c>] (snd_open [snd]) from [<802ce590>] (chrdev_open+0xac/0x188) [ 139.205465] [<802ce590>] (chrdev_open) from [<802c57b4>] (do_dentry_open+0x10c/0x314) [ 139.221347] [<802c57b4>] (do_dentry_open) from [<802c6ba8>] (vfs_open+0x5c/0x88) [ 139.236788] [<802c6ba8>] (vfs_open) from [<802d9a68>] (path_openat+0x368/0x944) [ 139.248270] [<802d9a68>] (path_openat) from [<802dacd4>] (do_filp_open+0x70/0xc4) [ 139.263731] [<802dacd4>] (do_filp_open) from [<802c6f70>] (do_sys_open+0x110/0x1d4) [ 139.279378] [<802c6f70>] (do_sys_open) from [<802c7060>] (SyS_open+0x2c/0x30) [ 139.290647] [<802c7060>] (SyS_open) from [<801082c0>] (ret_fast_syscall+0x0/0x28) [ 139.306021] Code: e3c3303f e5932004 e2822001 e5832004 (e5943000) [ 139.316265] ---[ end trace 7f3f7f6193b663ed ]--- [ 139.324956] note: aplay[463] exited with preempt_count 1 ~~~~ Signed-off-by: Kirill Marinushkin <k.marinushkin@gmail.com> Cc: Eric Anholt <eric@anholt.net> Cc: Stefan Wahren <stefan.wahren@i2se.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: bcm-kernel-feedback-list@broadcom.com Cc: Michael Zoran <mzoran@crowfest.net> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: linux-rpi-kernel@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: devel@driverdev.osuosl.org Cc: linux-kernel@vger.kernel.org Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-22staging: vc04_services: Add outstanding VCHI TODOsStefan Wahren1-0/+31
The TODO list missed some issues before we can move the driver out of staging. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-22staging: vc04_services: Remove import of bcm2835-camera from TODOStefan Wahren1-5/+0
The bcm2835-camera driver has already been imported. So remove it from the TODO. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-22staging: vc04_services: bcm2835-camera: Add blank line after declarationNishka Dasgupta1-0/+1
Add blank line after declaration. Issue found with checkpatch. Signed-off-by: Nishka Dasgupta <nishka.dasgupta_ug18@ashoka.edu.in> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-14staging: vc04_services: Remove vchiq_queue_bulk_{transmit,receive}.Eric Anholt2-30/+0
These are dead code, including in the downstream Raspberry Pi tree. Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-14staging: vc04_services: Mark the "DT bindings" job done.Eric Anholt1-7/+2
Now we just need to get the other drivers merged and finish the style cleanups/garbage collecting so we can get out of staging. Signed-off-by: Eric Anholt <eric@anholt.net> Acked-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-14staging: vc04_services: Remove cache-line-size property (v3)Eric Anholt2-10/+11
It's been tempting to replace this with (L1) cache_line_size(), but that's really not what the value is about. It's about coordinating the condition for the pagelist fragment behavior between the two sides. However, the property was not accepted for the upstream DT binding, so we have to use the firmware's fallback value. Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-14staging: vc04_services: Replace "firmware" node with a compatible lookup.Eric Anholt1-1/+2
This was requested by Rob Herring in DT bindings review. Signed-off-by: Eric Anholt <eric@anholt.net> Acked-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-06staging: vc04_services: Remove dead FRAGMENTS_TEric Anholt1-5/+0
It's not used in-tree, or in the downstream tree. Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-06staging: vc04_services: bcm2835-audio: Change to unsigned int *Nishka Dasgupta1-1/+1
Change 'unsigned *' to 'unsigned int *'. Issue found with checkpatch. Signed-off-by: Nishka Dasgupta <nishka.dasgupta_ug18@ashoka.edu.in> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-06staging: vc04_services: bcm2835-audio Format multiline commentNishka Dasgupta1-1/+2
Format multiline comment by moving '*/' to a new line. Issue found with checkpatch. Signed-off-by: Nishka Dasgupta <nishka.dasgupta_ug18@ashoka.edu.in> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-06staging: vc04_services: bcm2835-audio: Add blank line after declarationNishka Dasgupta1-0/+1
Add blank line after declaration. Issue found with checkpatch. Signed-off-by: Nishka Dasgupta <nishka.dasgupta_ug18@ashoka.edu.in> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-16staging: vc04_services: merge vchiq_kern_lib.c into vchiq_arm.cArnd Bergmann3-432/+369
There are two incompatible definitions of 'vchiq_instance_struct', so passing them through vchiq_initialise(), vchiq_connect() or another such interface is broken, as shown by building the driver with link-time optimizations: drivers/staging/vc04_services/interface/vchiq_arm/vchiq_if.h:129:0: error: type of 'vchiq_initialise' does not match original declaration [-Werror=lto-type-mismatch] extern VCHIQ_STATUS_T vchiq_initialise(VCHIQ_INSTANCE_T *pinstance); drivers/staging/vc04_services/interface/vchiq_arm/vchiq_kern_lib.c:68:0: note: 'vchiq_initialise' was previously declared here VCHIQ_STATUS_T vchiq_initialise(VCHIQ_INSTANCE_T *instance_out) drivers/staging/vc04_services/interface/vchiq_arm/vchiq_kern_lib.c:68:0: note: code may be misoptimized unless -fno-strict-aliasing is used drivers/staging/vc04_services/interface/vchiq_arm/vchiq_if.h:131:0: error: type of 'vchiq_connect' does not match original declaration [-Werror=lto-type-mismatch] extern VCHIQ_STATUS_T vchiq_connect(VCHIQ_INSTANCE_T instance); drivers/staging/vc04_services/interface/vchiq_arm/vchiq_kern_lib.c:168:0: note: 'vchiq_connect' was previously declared here VCHIQ_STATUS_T vchiq_connect(VCHIQ_INSTANCE_T instance) It's possible that only one of the two sides actually access the members, but it's clear that they need to agree on the layout. The easiest way to achieve this appears to be to merge the two files into one. I tried moving the structure definition into a shared header first, but ended up running into too many interdependencies that way. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-16staging: vc04_services: remove unused filesCorentin Labbe3-155/+0
All thoses files are not used by anybody. Lets just remove them. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Acked-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-15staging: vc04_services: bcm2835-camera: remove redundant license textGreg Kroah-Hartman12-48/+0
Now that the SPDX tag is in all drivers/staging/vc04_services/bcm2835-camera/ files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Eric Anholt <eric@anholt.net> Cc: Stefan Wahren <stefan.wahren@i2se.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: <bcm-kernel-feedback-list@broadcom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-15staging: vc04_services: bcm2835-camera: add SPDX identifiersGreg Kroah-Hartman12-0/+12
It's good to have SPDX identifiers in all files to make it easier to audit the kernel tree for correct licenses. Fix up the bcm2835-camera driver to have a proper SPDX identifier, based on the license text in the file itself. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This work is based on a script and data from Thomas Gleixner, Philippe Ombredanne, and Kate Stewart. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Cc: Eric Anholt <eric@anholt.net> Cc: Stefan Wahren <stefan.wahren@i2se.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: <bcm-kernel-feedback-list@broadcom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-15staging: vc04_services: bcm2835-audio: remove redundant license textGreg Kroah-Hartman6-78/+6
Now that the SPDX tag is in all drivers/staging/vc04_services/bcm2835-audio/ files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Stefan Wahren <stefan.wahren@i2se.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: <bcm-kernel-feedback-list@broadcom.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-15staging: vc04_services: bcm2835-audio: add SPDX identifiersGreg Kroah-Hartman6-0/+6
It's good to have SPDX identifiers in all files to make it easier to audit the kernel tree for correct licenses. Fix up the bcm2835-audio driver to have a proper SPDX identifier, based on the license text in the file itself. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This work is based on a script and data from Thomas Gleixner, Philippe Ombredanne, and Kate Stewart. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Cc: Eric Anholt <eric@anholt.net> Cc: Stefan Wahren <stefan.wahren@i2se.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: <bcm-kernel-feedback-list@broadcom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-08staging: vc05_services: fix checkpatch.pl errorsSidong Yang2-10/+5
Fix some errors for wrong brace position reported by checkpatch. Signed-off-by: Sidong Yang <realwakka@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-08staging: vc04_services: Prefer WARN_ON_ONCE instead of if condition followed by BUG.Kishore KP1-2/+1
Coccinelle suggested to use BUG_ON instead of if condition followed by BUG but BUG_ON should be used in situations where integrity of the system is no longer guaranteed. In this case, as suggested by Stefan Wahren, vchiq isn't critical. Since it is not critical, BUG_ON should be avoided. Replaced if condition followed by BUG with WARN_ON_ONCE. Signed-off-by: Kishore KP <kishore.p@techveda.org> Signed-off-by: Suniel Mahesh <sunil.m@techveda.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-08staging: vc04_services: Fix platform_no_drv_owner.cocci warnings.Kishore KP1-1/+0
Removed .owner field initialization, platform core does it automatically. Pointed out by Coccinelle. Signed-off-by: Kishore KP <kishore.p@techveda.org> Signed-off-by: Suniel Mahesh <sunil.m@techveda.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-21staging: vchiq_arm: Cleaning up codestyle warningsMikhail Shvetsov1-1/+2
This removes checkpatch.pl warnings: WARNING: line over 80 characters Signed-off-by: Mikhail Shvetsov <lameli67@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-21staging: vchiq_arm: Fixing code style of commentsMikhail Shvetsov1-4/+8
This removes checkpatch.pl warnings: WARNING: Block comments use a trailing */ on a separate line WARNING: Block comments should align the * on each line WARNING: Block comments use * on subsequent lines Signed-off-by: Mikhail Shvetsov <lameli67@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-21staging: vchiq_arm: Remove useless comments.Mikhail Shvetsov1-35/+0
This removes useless comments duplicate function names. Signed-off-by: Mikhail Shvetsov <lameli67@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19staging: vchiq_arm: fix open brace placement errorsTara Null1-4/+5
Fix checkpatch errors relating to open brace placement for enums and function definitions. Signed-off-by: Tara Null <tn@fastmail.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19Staging: vc04_services: fix brace coding style issues in vchiq_shim.cTomas Marek1-2/+1
This patch fix brace on next line coding style errors reported by checkpatch. Signed-off-by: Tomas Marek <marek_tomas@centrum.cz> Acked-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-06staging: vc04_services: Use __func__Genki Sky1-2/+2
This was found using checkpatch.pl's EMBEDDED_FUNCTION_NAME warning. It is easier to be consistent and always use __func__ instead of having to remember to update any hardcoded references to the original name. Signed-off-by: Genki Sky <sky@genki.is> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-06staging: vc04_services: Unsplit user-visible stringsGenki Sky2-6/+4
This was found using checkpatch.pl's SPLIT_STRING warning. While joining these strings makes for long lines, the kernel codebase consistently does it this way to make user-visible strings easier to grep for. Signed-off-by: Genki Sky <sky@genki.is> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-06staging: vc04_services: Join multiline dereferencesGenki Sky1-10/+6
This was found using checkpatch.pl's MULTILINE_DEREFERENCE warning. Putting the dereference onto one line makes them easier to read, especially when part of a larger expression (in this case, function arguments and ternary operator), and when the dereferences are short (as they are here). Signed-off-by: Genki Sky <sky@genki.is> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-28staging: bcm2835-camera use ktime_t for timestampsArnd Bergmann2-29/+10
struct timeval is deprecated for in-kernel use, and converting this function to use ktime_t makes it simpler as well. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-17Merge branch 'work.get_user_pages_fast' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds1-13/+7
Pull get_user_pages_fast() conversion from Al Viro: "A bunch of places switched to get_user_pages_fast()" * 'work.get_user_pages_fast' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: ceph: use get_user_pages_fast() pvr2fs: use get_user_pages_fast() atomisp: use get_user_pages_fast() st: use get_user_pages_fast() via_dmablit(): use get_user_pages_fast() fsl_hypervisor: switch to get_user_pages_fast() rapidio: switch to get_user_pages_fast() vchiq_2835_arm: switch to get_user_pages_fast()
2017-11-13Merge tag 'staging-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds18-318/+76
Pull staging and IIO updates from Greg KH: "Here is the "big" staging and IIO driver update for 4.15-rc1. Lots and lots of little changes, almost all minor code cleanups as the Outreachy application process happened during this development cycle. Also happened was a lot of IIO driver activity, and the typec USB code moving out of staging to drivers/usb (same commits are in the USB tree on a persistent branch to not cause merge issues.) Overall, it's a wash, I think we added a few hundred more lines than removed, but really only a few thousand were modified at all. All of these have been in linux-next for a while. There might be a merge issue with Al's vfs tree in the pi433 driver (take his changes, they are always better), and the media tree with some of the odd atomisp cleanups (take the media tree's version)" * tag 'staging-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (507 commits) staging: lustre: add SPDX identifiers to all lustre files staging: greybus: Remove redundant license text staging: greybus: add SPDX identifiers to all greybus driver files staging: ccree: simplify ioread/iowrite staging: ccree: simplify registers access staging: ccree: simplify error handling logic staging: ccree: remove dead code staging: ccree: handle limiting of DMA masks staging: ccree: copy IV to DMAable memory staging: fbtft: remove redundant initialization of buf staging: sm750fb: Fix parameter mistake in poke32 staging: wilc1000: Fix bssid buffer offset in Txq staging: fbtft: fb_ssd1331: fix mirrored display staging: android: Fix checkpatch.pl error staging: greybus: loopback: convert loopback to use generic async operations staging: greybus: operation: add private data with get/set accessors staging: greybus: loopback: Fix iteration count on async path staging: greybus: loopback: Hold per-connection mutex across operations staging: greybus/loopback: use ktime_get() for time intervals staging: fsl-dpaa2/eth: Extra headroom in RX buffers ...
2017-11-02staging: vc04_services: Convert timers to use timer_setup()Kees Cook2-10/+8
In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Additionally removes invalid NULL check, as pointed out by Dan Carpenter. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Eric Anholt <eric@anholt.net> Cc: Stefan Wahren <stefan.wahren@i2se.com> Cc: Michael Zoran <mzoran@crowfest.net> Cc: Keerthi Reddy <keerthigd4990@gmail.com> Cc: linux-rpi-kernel@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: devel@driverdev.osuosl.org Signed-off-by: Kees Cook <keescook@chromium.org> Tested-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman3-0/+3
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-23Merge 4.14-rc6 into staging-nextGreg Kroah-Hartman1-12/+7
We want the IIO and staging driver fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-23staging: vc04_services: Remove unnecessary bracesMihaela Muraru1-10/+16
Remove unnecessary braces for single statements also declare a local variable "platform_state" of type "struct vchiq_2835_state", to avoid the multiple cast. Signed-off-by: Mihaela Muraru <mihaela.muraru21@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-18staging: vc04_services: Use __func__ instead of function nameMihaela Muraru1-5/+4
Use identifier __func__ instead of the name of the function. Issue found by checkpatch.pl. Signed-off-by: Mihaela Muraru <mihaela.muraru21@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-18staging: vc04_services: Fix comment block coding styleMihaela Muraru1-8/+8
Remove the unnecessary '*' character and align the comment block to fit the coding style used by linux kernel organization. Signed-off-by: Mihaela Muraru <mihaela.muraru21@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-18staging: vc04_services: vchiq_core: mark expected switch fall-throughGustavo A. R. Silva1-2/+1
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Acked-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-18staging: bcm2835-audio: Fix memory corruptionPhil Elwell1-12/+7
The previous commit (0adbfd46) fixed a memory leak but also freed a block in the success case, causing a stale pointer to be used with potentially fatal results. Only free the vchi_instance block in the case that vchi_connect fails; once connected, the instance is retained for subsequent connections. Simplifying the code by removing a bunch of gotos and returning errors directly. Signed-off-by: Phil Elwell <phil@raspberrypi.org> Fixes: 0adbfd4694c2 ("staging: bcm2835-audio: fix memory leak in bcm2835_audio_open_connection()") Cc: stable <stable@vger.kernel.org> # 4.12+ Tested-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-09Merge 4.14-rc4 into staging-nextGreg Kroah-Hartman1-2/+4
We want the staging/iio fixes in here as well to handle merge issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-03staging: bcm2835-camera: pr_err() strings should end with newlinesArvind Yadav1-1/+1
pr_err() messages should end with a new-line to avoid other messages being concatenated. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-29staging: vc04_services: Remove typedef struct vchiq_2835_state_structMihaela Muraru1-8/+8
This patch removes typedef from struct and renames it from "typedef struct vchiq_2835_state_struct" to "struct vchiq_2835_state" as per kernel coding standards. Signed-off-by: Mihaela Muraru <mihaela.muraru21@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-29staging: vc04_services: Remove extern variableMihaela Muraru1-2/+0
This patch removes extern variable vchiq_arm_log_level, because it is already declared in vchiq_arm.h Issue found by checkpatch.pl Signed-off-by: Mihaela Muraru <mihaela.muraru21@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-29Staging: vc04_services: remove unused variablesKeerthi Reddy1-2/+0
the volatile fields of bcm2835_alsa_stream - control and status are not used. $ grep bcm2835_alsa_stream >From the above command all instances we see that all variables of 'bcm2835_alsa_stream' are declared as 'alsa_stream' So search for 'control' wherever we have 'alsa_stream' $ grep -l 'alsa_stream' | xargs grep "control" The above command returns where we don't any usage of 'control' field. which means that there is no usage of these fields. similarly for 'status' we see no usages. Signed-off-by: Keerthi Reddy <keerthigd4990@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-29Staging: vc04_services: bcm2835-camera: use BIT macroKeerthi Reddy1-11/+11
Use BIT macro instead of left shift Signed-off-by: Keerthi Reddy <keerthigd4990@gmail.com> Acked-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-29staging: vc04_services: fix typosKeerthi Reddy2-2/+2
Some words are misspelled. Fix typos. Signed-off-by: Keerthi Reddy <keerthigd4990@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-29staging: vc04_services: please do not use multiple blank linesKeerthi Reddy12-77/+0
Blank lines use up extra space in file and makes the file larger. So do not use multiple blanklines Signed-off-by: Keerthi Reddy <keerthigd4990@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-22vchiq_2835_arm: switch to get_user_pages_fast()Al Viro1-13/+7
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-09-22staging: vc04_services: remove BCM2835_VCHIQ_SUPPORT_MEMDUMPDan Carpenter2-163/+0
BCM2835_VCHIQ_SUPPORT_MEMDUMP lets you look through any user memory. That's too big of an information leak from a security perspective. The debugging dumps need to be more specific to this driver. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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