4387 Commits

Author SHA1 Message Date
Zqiang
e8d5f92b8d usb: gadget: function: printer: fix use-after-free in __lock_acquire
Fix this by increase object reference count.

BUG: KASAN: use-after-free in __lock_acquire+0x3fd4/0x4180
kernel/locking/lockdep.c:3831
Read of size 8 at addr ffff8880683b0018 by task syz-executor.0/3377

CPU: 1 PID: 3377 Comm: syz-executor.0 Not tainted 5.6.11 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xce/0x128 lib/dump_stack.c:118
 print_address_description.constprop.4+0x21/0x3c0 mm/kasan/report.c:374
 __kasan_report+0x131/0x1b0 mm/kasan/report.c:506
 kasan_report+0x12/0x20 mm/kasan/common.c:641
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/generic_report.c:135
 __lock_acquire+0x3fd4/0x4180 kernel/locking/lockdep.c:3831
 lock_acquire+0x127/0x350 kernel/locking/lockdep.c:4488
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x35/0x50 kernel/locking/spinlock.c:159
 printer_ioctl+0x4a/0x110 drivers/usb/gadget/function/f_printer.c:723
 vfs_ioctl fs/ioctl.c:47 [inline]
 ksys_ioctl+0xfb/0x130 fs/ioctl.c:763
 __do_sys_ioctl fs/ioctl.c:772 [inline]
 __se_sys_ioctl fs/ioctl.c:770 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:770
 do_syscall_64+0x9e/0x510 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4531a9
Code: ed 60 fc ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48
89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d
01 f0 ff ff 0f 83 bb 60 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fd14ad72c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000073bfa8 RCX: 00000000004531a9
RDX: fffffffffffffff9 RSI: 000000000000009e RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004bbd61
R13: 00000000004d0a98 R14: 00007fd14ad736d4 R15: 00000000ffffffff

Allocated by task 2393:
 save_stack+0x21/0x90 mm/kasan/common.c:72
 set_track mm/kasan/common.c:80 [inline]
 __kasan_kmalloc.constprop.3+0xa7/0xd0 mm/kasan/common.c:515
 kasan_kmalloc+0x9/0x10 mm/kasan/common.c:529
 kmem_cache_alloc_trace+0xfa/0x2d0 mm/slub.c:2813
 kmalloc include/linux/slab.h:555 [inline]
 kzalloc include/linux/slab.h:669 [inline]
 gprinter_alloc+0xa1/0x870 drivers/usb/gadget/function/f_printer.c:1416
 usb_get_function+0x58/0xc0 drivers/usb/gadget/functions.c:61
 config_usb_cfg_link+0x1ed/0x3e0 drivers/usb/gadget/configfs.c:444
 configfs_symlink+0x527/0x11d0 fs/configfs/symlink.c:202
 vfs_symlink+0x33d/0x5b0 fs/namei.c:4201
 do_symlinkat+0x11b/0x1d0 fs/namei.c:4228
 __do_sys_symlinkat fs/namei.c:4242 [inline]
 __se_sys_symlinkat fs/namei.c:4239 [inline]
 __x64_sys_symlinkat+0x73/0xb0 fs/namei.c:4239
 do_syscall_64+0x9e/0x510 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 3368:
 save_stack+0x21/0x90 mm/kasan/common.c:72
 set_track mm/kasan/common.c:80 [inline]
 kasan_set_free_info mm/kasan/common.c:337 [inline]
 __kasan_slab_free+0x135/0x190 mm/kasan/common.c:476
 kasan_slab_free+0xe/0x10 mm/kasan/common.c:485
 slab_free_hook mm/slub.c:1444 [inline]
 slab_free_freelist_hook mm/slub.c:1477 [inline]
 slab_free mm/slub.c:3034 [inline]
 kfree+0xf7/0x410 mm/slub.c:3995
 gprinter_free+0x49/0xd0 drivers/usb/gadget/function/f_printer.c:1353
 usb_put_function+0x38/0x50 drivers/usb/gadget/functions.c:87
 config_usb_cfg_unlink+0x2db/0x3b0 drivers/usb/gadget/configfs.c:485
 configfs_unlink+0x3b9/0x7f0 fs/configfs/symlink.c:250
 vfs_unlink+0x287/0x570 fs/namei.c:4073
 do_unlinkat+0x4f9/0x620 fs/namei.c:4137
 __do_sys_unlink fs/namei.c:4184 [inline]
 __se_sys_unlink fs/namei.c:4182 [inline]
 __x64_sys_unlink+0x42/0x50 fs/namei.c:4182
 do_syscall_64+0x9e/0x510 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

The buggy address belongs to the object at ffff8880683b0000
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 24 bytes inside of
 1024-byte region [ffff8880683b0000, ffff8880683b0400)
The buggy address belongs to the page:
page:ffffea0001a0ec00 refcount:1 mapcount:0 mapping:ffff88806c00e300
index:0xffff8880683b1800 compound_mapcount: 0
flags: 0x100000000010200(slab|head)
raw: 0100000000010200 0000000000000000 0000000600000001 ffff88806c00e300
raw: ffff8880683b1800 000000008010000a 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Reported-by: Kyungtae Kim <kt0755@gmail.com>
Signed-off-by: Zqiang <qiang.zhang@windriver.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-10-02 09:43:36 +03:00
Michał Mirosław
e7a0ed3fa3 usb: gadget: f_acm: don't disable disabled EP
Make debugging real problems easier by not trying to disable an EP that
was not yet enabled.

Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-10-02 09:43:36 +03:00
Tao Ren
a1c0169a49 usb: gadget: aspeed: fixup vhub port irq handling
This is a follow-on patch for commit a23be4ed8f48 ("usb: gadget: aspeed:
improve vhub port irq handling"): for_each_set_bit() is replaced with
simple for() loop because for() loop runs faster on ASPEED BMC.

Signed-off-by: Tao Ren <rentao.bupt@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-10-02 09:43:36 +03:00
Linus Walleij
072f34c2eb usb: gadget: udc: Drop surplus include
The UDC NET2272 driver includes <linux/gpio.h> but does not
use any symbols from this file, so drop the include.

Cc: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-10-02 09:43:34 +03:00
Chunfeng Yun
805ca9c2c2 usb: udc: net2280: convert to readl_poll_timeout_atomic()
Use readl_poll_timeout_atomic() to simplify code

Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Felipe Balbi <balbi@kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1600668815-12135-10-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-25 16:30:06 +02:00
Cristian Birsan
26b3242450 usb: gadget: udc: atmel: update endpoint allocation for sam9x60
The DPRAM memory from the USB High Speed Device Port (UDPHS) hardware
block was increased. This patch updates the endpoint allocation for sam9x60
to take advantage of this larger memory. At the same time the
constraint to allocate the endpoints in order was lifted. To handle old
and new hardware in the same driver the ep_prealloc was added.

Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-09-24 11:56:17 +03:00
Cristian Birsan
5b041a3044 usb: gadget: udc: atmel: use 1 bank endpoints for control transfers
Use 1 bank endpoints for control transfers

Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-09-24 11:56:17 +03:00
Cristian Birsan
033b8966e9 usb: gadget: udc: atmel: simplify endpoint allocation
Simplify the endpoint allocation and cleanup the code.

Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-09-24 11:56:17 +03:00
Claudiu Beznea
3a48217854 usb: gadget: udc: atmel: use of_find_matching_node_and_match
Instead of trying to match every possible compatible use
of_find_matching_node_and_match() and pass the compatible array.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-09-24 11:56:16 +03:00
Olof Johansson
465c335bb5 Samsung S3C24xx and S3C64xx machine code cleanup for v5.10
Big cleanup for the Samsung S3C24xx and S3C64xx platforms, although it
 also touches files shared with S5Pv210 and Exynos.  This is mostly Arnd
 Bergmann work which Krzysztof Kozlowski took over, rebased and polished.
 
 The goal is to cleanup, merge and finally make the Samsung S3C24xx and
 S3C64xx architectures multiplatform.  The multiplatform did not happen
 yet here - just cleaning up and merging into one arch/arm/mach-s3c
 directory.  However this is step forward for multiplatform or at least
 to keep this code still maintainable.
 
 This pulls also branch with changes for Samsung SoC sound drivers from
 broonie/sound because the cleanups there were part of this series and
 all further patches depend on them.
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Merge tag 'samsung-soc-s3c-5.10' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/soc

Samsung S3C24xx and S3C64xx machine code cleanup for v5.10

Big cleanup for the Samsung S3C24xx and S3C64xx platforms, although it
also touches files shared with S5Pv210 and Exynos.  This is mostly Arnd
Bergmann work which Krzysztof Kozlowski took over, rebased and polished.

The goal is to cleanup, merge and finally make the Samsung S3C24xx and
S3C64xx architectures multiplatform.  The multiplatform did not happen
yet here - just cleaning up and merging into one arch/arm/mach-s3c
directory.  However this is step forward for multiplatform or at least
to keep this code still maintainable.

This pulls also branch with changes for Samsung SoC sound drivers from
broonie/sound because the cleanups there were part of this series and
all further patches depend on them.

* tag 'samsung-soc-s3c-5.10' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: (62 commits)
  ARM: s3c: Avoid naming clash of S3C24xx and S3C64xx timer setup
  ARM: s3c: Cleanup from old plat-samsung include
  ARM: s3c: make headers local if possible
  ARM: s3c: move into a common directory
  ARM: s3c24xx: stop including mach/hardware.h from mach/io.h
  cpufreq: s3c24xx: move low-level clk reg access into platform code
  cpufreq: s3c2412: use global s3c2412_cpufreq_setrefresh
  ARM: s3c: remove cpufreq header dependencies
  cpufreq: s3c24xx: split out registers
  fbdev: s3c2410fb: remove mach header dependency
  ARM: s3c24xx: bast: avoid irq_desc array usage
  ARM: s3c24xx: spi: avoid hardcoding fiq number in driver
  ARM: s3c24xx: include mach/irqs.h where needed
  ARM: s3c24xx: move s3cmci pinctrl handling into board files
  ARM: s3c24xx: move iis pinctrl config into boards
  ARM: s3c24xx: move spi fiq handler into platform
  ARM: s3c: adc: move header to linux/soc/samsung
  ARM: s3c24xx: move irqchip driver back into platform
  ARM: s3c24xx: move regs-spi.h into spi driver
  ARM: s3c64xx: remove mach/hardware.h
  ...

Link: https://lore.kernel.org/r/20200831154751.7551-1-krzk@kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-13 11:15:01 -07:00
Greg Kroah-Hartman
5fedf0d295 Linux 5.9-rc3
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Merge 5.9-rc3 into usb-next

We want the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-31 07:11:45 +02:00
Linus Torvalds
6f0306d1bf USB fixes for 5.9-rc3 - take 2
Let's try this again...  Here are some USB fixes for 5.9-rc3.
 
 This differs from the previous pull request for this release in that:
 	- the usb gadget patch now does not break some systems, and
 	  actually does what it was intended to do.  Many thanks to
 	  Marek Szyprowski for quickly noticing and testing the patch
 	  from Andy Shevchenko to resolve this issue.
 	- some more new USB quirks have been added to get some new
 	  devices to work properly based on user reports.
 
 Other than that, the original pull request patches are all here, and
 they contain:
 	- usb gadget driver fixes
 	- xhci driver fixes
 	- typec fixes
 	- new quirks and ids
 	- fixes for USB patches that went into 5.9-rc1.
 
 All of these have been tested in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Let's try this again...  Here are some USB fixes for 5.9-rc3.

  This differs from the previous pull request for this release in that
  the usb gadget patch now does not break some systems, and actually
  does what it was intended to do. Many thanks to Marek Szyprowski for
  quickly noticing and testing the patch from Andy Shevchenko to resolve
  this issue.

  Additionally, some more new USB quirks have been added to get some new
  devices to work properly based on user reports.

  Other than that, the patches are all here, and they contain:

   - usb gadget driver fixes

   - xhci driver fixes

   - typec fixes

   - new quirks and ids

   - fixes for USB patches that went into 5.9-rc1.

  All of these have been tested in linux-next with no reported issues"

* tag 'usb-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (33 commits)
  usb: storage: Add unusual_uas entry for Sony PSZ drives
  USB: Ignore UAS for JMicron JMS567 ATA/ATAPI Bridge
  usb: host: ohci-exynos: Fix error handling in exynos_ohci_probe()
  USB: gadget: u_f: Unbreak offset calculation in VLAs
  USB: quirks: Ignore duplicate endpoint on Sound Devices MixPre-D
  usb: typec: tcpm: Fix Fix source hard reset response for TDA 2.3.1.1 and TDA 2.3.1.2 failures
  USB: PHY: JZ4770: Fix static checker warning.
  USB: gadget: f_ncm: add bounds checks to ncm_unwrap_ntb()
  USB: gadget: u_f: add overflow checks to VLA macros
  xhci: Always restore EP_SOFT_CLEAR_TOGGLE even if ep reset failed
  xhci: Do warm-reset when both CAS and XDEV_RESUME are set
  usb: host: xhci: fix ep context print mismatch in debugfs
  usb: uas: Add quirk for PNY Pro Elite
  tools: usb: move to tools buildsystem
  USB: Fix device driver race
  USB: Also match device drivers using the ->match vfunc
  usb: host: xhci-tegra: fix tegra_xusb_get_phy()
  usb: host: xhci-tegra: otg usb2/usb3 port init
  usb: hcd: Fix use after free in usb_hcd_pci_remove()
  usb: typec: ucsi: Hold con->lock for the entire duration of ucsi_register_port()
  ...
2020-08-30 10:51:03 -07:00
Andy Shevchenko
bfd08d06d9 USB: gadget: u_f: Unbreak offset calculation in VLAs
Inadvertently the commit b1cd1b65afba ("USB: gadget: u_f: add overflow checks
to VLA macros") makes VLA macros to always return 0 due to different scope of
two variables of the same name. Obviously we need to have only one.

Fixes: b1cd1b65afba ("USB: gadget: u_f: add overflow checks to VLA macros")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Brooke Basile <brookebasile@gmail.com>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20200826192119.56450-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-27 09:25:06 +02:00
Brooke Basile
2b74b0a04d USB: gadget: f_ncm: add bounds checks to ncm_unwrap_ntb()
Some values extracted by ncm_unwrap_ntb() could possibly lead to several
different out of bounds reads of memory.  Specifically the values passed
to netdev_alloc_skb_ip_align() need to be checked so that memory is not
overflowed.

Resolve this by applying bounds checking to a number of different
indexes and lengths of the structure parsing logic.

Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com>
Signed-off-by: Brooke Basile <brookebasile@gmail.com>
Acked-by: Felipe Balbi <balbi@kernel.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-25 16:02:32 +02:00
Brooke Basile
b1cd1b65af USB: gadget: u_f: add overflow checks to VLA macros
size can potentially hold an overflowed value if its assigned expression
is left unchecked, leading to a smaller than needed allocation when
vla_group_size() is used by callers to allocate memory.
To fix this, add a test for saturation before declaring variables and an
overflow check to (n) * sizeof(type).
If the expression results in overflow, vla_group_size() will return SIZE_MAX.

Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com>
Suggested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Brooke Basile <brookebasile@gmail.com>
Acked-by: Felipe Balbi <balbi@kernel.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-25 16:02:29 +02:00
Gustavo A. R. Silva
df561f6688 treewide: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-08-23 17:36:59 -05:00
Krzysztof Kozlowski
31dc1c2376 usb: gadget: s3c: remove unused 'udc' variable
Remove unused 'udc' variable to fix compile warnings:

    drivers/usb/gadget/udc/s3c2410_udc.c: In function 's3c2410_udc_dequeue':
    drivers/usb/gadget/udc/s3c2410_udc.c:1268:22: warning: variable 'udc' set but not used [-Wunused-but-set-variable]

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Link: https://lore.kernel.org/r/20200731074122.6484-1-krzk@kernel.org
2020-08-19 21:10:47 +02:00
Arnd Bergmann
5f74542476 usb: gadget: s3c-hsudc: remove platform header dependency
There is no real phy driver, so s3c-hsudc just pokes the registers
itself. Improve this a little by making it a platform data callback
like we do for gpios.

There is only one board using this driver, and it's unlikely
that another would be added, so this is a minimal workaround.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200806182059.2431-9-krzk@kernel.org
[krzk: Include regs-s3c2443-clock.h in ifdef to fixup build on s3c6400]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-19 20:58:27 +02:00
Arnd Bergmann
188db4435a usb: gadget: s3c: use platform resources
The resources are correctly initialized, so just use them
instead of relying on hardcoded data from platform headers.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Felipe Balbi <balbi@kernel.org>
Link: https://lore.kernel.org/r/20200806182059.2431-8-krzk@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-08-19 20:58:22 +02:00
Allen Pais
f7aa938623 usb/gadget: fsl_qe_udc: convert tasklets to use new tasklet_setup() API
In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.

Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Link: https://lore.kernel.org/r/20200817090209.26351-6-allen.cryptic@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 13:00:01 +02:00
Allen Pais
6148c10f6b usb/gadget: f_midi: convert tasklets to use new tasklet_setup() API
In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.

Signed-off-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Link: https://lore.kernel.org/r/20200817090209.26351-5-allen.cryptic@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-18 13:00:01 +02:00
Christophe JAILLET
07c8434150 usb: gadget: f_tcm: Fix some resource leaks in some error paths
If a memory allocation fails within a 'usb_ep_alloc_request()' call, the
already allocated memory must be released.

Fix a mix-up in the code and free the correct requests.

Fixes: c52661d60f63 ("usb-gadget: Initial merge of target module for UASP + BOT")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-08-17 13:35:22 +03:00
Linus Torvalds
ecfd7940b8 USB/Thunderbolt patches for 5.9-rc1
Here is the large set of USB and Thunderbolt patches for 5.9-rc1.
 
 Nothing really magic/major in here, just lots of little changes and
 updates:
 	- clean up language usages in USB core and some drivers
 	- Thunderbolt driver updates and additions
 	- USB Gadget driver updates
 	- dwc3 driver updates (like always...)
 	- build with "W=1" warning fixups
 	- mtu3 driver updates
 	- usb-serial driver updates and device ids
 	- typec additions and updates for new hardware
 	- xhci debug code updates for future platforms
 	- cdns3 driver updates
 	- lots of other minor driver updates and fixes and cleanups
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/Thunderbolt updates from Greg KH:
 "Here is the large set of USB and Thunderbolt patches for 5.9-rc1.

  Nothing really magic/major in here, just lots of little changes and
  updates:

   - clean up language usages in USB core and some drivers

   - Thunderbolt driver updates and additions

   - USB Gadget driver updates

   - dwc3 driver updates (like always...)

   - build with "W=1" warning fixups

   - mtu3 driver updates

   - usb-serial driver updates and device ids

   - typec additions and updates for new hardware

   - xhci debug code updates for future platforms

   - cdns3 driver updates

   - lots of other minor driver updates and fixes and cleanups

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (330 commits)
  usb: common: usb-conn-gpio: Register charger
  usb: mtu3: simplify mtu3_req_complete()
  usb: mtu3: clear dual mode of u3port when disable device
  usb: mtu3: use MTU3_EP_WEDGE flag
  usb: mtu3: remove useless member @busy in mtu3_ep struct
  usb: mtu3: remove repeated error log
  usb: mtu3: add ->udc_set_speed()
  usb: mtu3: introduce a funtion to check maximum speed
  usb: mtu3: clear interrupts status when disable interrupts
  usb: mtu3: reinitialize CSR registers
  usb: mtu3: fix macro for maximum number of packets
  usb: mtu3: remove unnecessary pointer checks
  usb: xhci: Fix ASMedia ASM1142 DMA addressing
  usb: xhci: define IDs for various ASMedia host controllers
  usb: musb: convert to devm_platform_ioremap_resource_byname
  usb: gadget: tegra-xudc: convert to devm_platform_ioremap_resource_byname
  usb: gadget: r8a66597: convert to devm_platform_ioremap_resource_byname
  usb: dwc3: convert to devm_platform_ioremap_resource_byname
  usb: cdns3: convert to devm_platform_ioremap_resource_byname
  usb: phy: am335x: convert to devm_platform_ioremap_resource_byname
  ...
2020-08-05 12:13:10 -07:00
Linus Torvalds
427714f258 tasklets API update for v5.9-rc1
- Prepare for tasklet API modernization (Romain Perier, Allen Pais, Kees Cook)
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Merge tag 'tasklets-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull tasklets API update from Kees Cook:
 "These are the infrastructure updates needed to support converting the
  tasklet API to something more modern (and hopefully for removal
  further down the road).

  There is a 300-patch series waiting in the wings to get set out to
  subsystem maintainers, but these changes need to be present in the
  kernel first. Since this has some treewide changes, I carried this
  series for -next instead of paining Thomas with it in -tip, but it's
  got his Ack.

  This is similar to the timer_struct modernization from a while back,
  but not nearly as messy (I hope). :)

   - Prepare for tasklet API modernization (Romain Perier, Allen Pais,
     Kees Cook)"

* tag 'tasklets-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  tasklet: Introduce new initialization API
  treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD()
  usb: gadget: udc: Avoid tasklet passing a global
2020-08-04 13:40:35 -07:00
Linus Torvalds
6ce076f415 ARM: SoC changes for v5.9
These are mostly cosmetic changes and minor bugfixes for the SoC
 specific code, across the 32-bit at91, mvebu, davinci, samsung, and
 omap platforms.
 
 The main notable changes are for the Samsung Exynos platform, which
 sees a rewrite of gpio handling and a change to restore and adds
 a workaround for a problem with cpuidle support.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-soc-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC updates from Arnd Bergmann:
 "These are mostly cosmetic changes and minor bugfixes for the SoC
  specific code, across the 32-bit at91, mvebu, davinci, samsung, and
  omap platforms.

  The main notable changes are for the Samsung Exynos platform, which
  sees a rewrite of gpio handling and a change to restore and adds a
  workaround for a problem with cpuidle support"

* tag 'arm-soc-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: socfpga: PM: add missing put_device() call in socfpga_setup_ocram_self_refresh()
  MAINTAINERS: arm/amlogic: add designated reviewers
  ARM: davinci: dm646x-evm: Simplify error handling in 'evm_sw_setup()'
  ARM: davinci: Fix trivial spelling
  ARM: davinci: Replace HTTP links with HTTPS ones
  ARM: s3c24xx: Replace HTTP links with HTTPS ones
  ARM: orion/gpio: Make use of for_each_requested_gpio()
  ARM: at91: Replace HTTP links with HTTPS ones
  ARM: at91: pm: add missing put_device() call in at91_pm_sram_init()
  ARM: rpc: Change blacklist to quirklist in ecode.c file
  ARM: OMAP: Replace HTTP links with HTTPS ones
  ARM: s3c24xx: leds: Convert to use GPIO descriptors
  udc: lpc32xx: mark local function static
  ARM: exynos: MCPM: Restore big.LITTLE cpuidle support
  ARM: exynos: clear L310_AUX_CTRL_FULL_LINE_ZERO in default l2c_aux_val
2020-08-03 19:24:55 -07:00
Kees Cook
b13fecb1c3 treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD()
This converts all the existing DECLARE_TASKLET() (and ...DISABLED)
macros with DECLARE_TASKLET_OLD() in preparation for refactoring the
tasklet callback type. All existing DECLARE_TASKLET() users had a "0"
data argument, it has been removed here as well.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
2020-07-30 11:15:58 -07:00
Kees Cook
f9dc3713df usb: gadget: udc: Avoid tasklet passing a global
There's no reason for the tasklet callback to set an argument since it
always uses a global. Instead, use the global directly, in preparation
for converting the tasklet subsystem to modern callback conventions.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
2020-07-30 11:15:48 -07:00
Chunfeng Yun
9d4ee5bd82 usb: gadget: tegra-xudc: convert to devm_platform_ioremap_resource_byname
Use devm_platform_ioremap_resource_byname() to simplify code

Cc: Nagarjuna Kristam <nkristam@nvidia.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1595404275-8449-6-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-29 16:49:38 +02:00
Chunfeng Yun
c946226834 usb: gadget: r8a66597: convert to devm_platform_ioremap_resource_byname
Use devm_platform_ioremap_resource_byname() to simplify code

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1595404275-8449-5-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-29 16:49:38 +02:00
Zqiang
7f2ca14d2f usb: gadget: function: printer: Interface is disabled and returns error
After the device is disconnected from the host side, the interface of
the device is reset. If the userspace operates the device again,
an error code should be returned.

Signed-off-by: Zqiang <qiang.zhang@windriver.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-07-24 16:45:15 +03:00
Ruslan Bilovol
a9cf871518 usb: gadget: f_uac2: fix AC Interface Header Descriptor wTotalLength
As per UAC2 spec (ch. 4.7.2), wTotalLength of AC Interface
Header Descriptor "includes the combined length of this
descriptor header and all Clock Source, Unit and Terminal
descriptors."

Thus add its size to its wTotalLength.

Also after recent changes wTotalLength is calculated
dynamically, update static definition of uac2_ac_header_descriptor
accordingly

Fixes: 132fcb460839 ("usb: gadget: Add Audio Class 2.0 Driver")
Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-07-24 16:45:15 +03:00
Florian Fainelli
1fa645b1c9 usb: bdc: Use devm_clk_get_optional()
The BDC clock is optional and we may get an -EPROBE_DEFER error code
which would not be propagated correctly, fix this by using
devm_clk_get_optional().

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Al Cooper <alcooperx@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-07-24 16:45:15 +03:00
Danesh Petigara
5fc453d7de usb: bdc: Halt controller on suspend
GISB bus error kernel panics have been observed during S2 transition
tests on the 7271t platform. The errors are a result of the BDC
interrupt handler trying to access BDC register space after the
system's suspend callbacks have completed.

Adding a suspend hook to the BDC driver that halts the controller before
S2 entry thus preventing unwanted access to the BDC register space during
this transition.

Signed-off-by: Danesh Petigara <danesh.petigara@broadcom.com>
Signed-off-by: Al Cooper <alcooperx@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-07-24 16:45:15 +03:00
Al Cooper
b10d33c4f0 usb: bdc: driver runs out of buffer descriptors on large ADB transfers
Version v1.0.40 of the Android host ADB software increased maximum
transfer sizes from 256K to 1M. Since the STB ADB gadget driver
requests only 16K at a time, the BDC driver ran out of buffer
descriptors (BDs) if the queuing happens faster than the incoming
16K transfers. This issue is fixed by doubling the number of BDs
that can be queued so that the entire 1M request can be queued
without running out of buffers.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-07-24 16:45:14 +03:00
Al Cooper
33d1c71832 usb: bdc: Adb shows offline after resuming from S2
On Android systems, After temporarily putting device to S2 by
short pressing the power button on the remote, the display turns
off. Then press the power button to turn the display back up. Adb
devices would show the devices is offline. It needs a physical
disconnect of the usb cable or power cycle to bring the device
back online. The device is operational otherwise.

The problem is that during S2 resume, the ADB gadget driver could
not link back with the BDC driver because the endpoint flags were
cleared. The fix is to clear the endpoint flags for the disconnect
case only and not for S2 exit.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-07-24 16:45:14 +03:00
Sasi Kumar
a95bdfd220 bdc: Fix bug causing crash after multiple disconnects
Multiple connects/disconnects can cause a crash on the second
disconnect. The driver had a problem where it would try to send
endpoint commands after it was disconnected which is not allowed
by the hardware. The fix is to only allow the endpoint commands
when the endpoint is connected. This will also fix issues that
showed up when using configfs to create gadgets.

Signed-off-by: Sasi Kumar <sasi.kumar@broadcom.com>
Signed-off-by: Al Cooper <alcooperx@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-07-24 16:45:14 +03:00
Al Cooper
4e3a765ba0 usb: bdc: Add compatible string for new style USB DT nodes
Add compatible string for some newer boards that only have this
as their match sting. Remove unused compatible string "brcm,bdc-v0.16".

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-07-24 16:45:14 +03:00
Evgeny Novikov
2468c877da usb: gadget: net2280: fix memory leak on probe error handling paths
Driver does not release memory for device on error handling paths in
net2280_probe() when gadget_release() is not registered yet.

The patch fixes the bug like in other similar drivers.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-07-24 16:45:13 +03:00
Evgeny Novikov
ae90cc8237 usb: gadget: net2272: skip BAR1 on error handling paths in probe
net2272_rdk1_probe() skips "i == 1" (BAR1) during allocation of
resources. The patch does this on error hanling paths as well.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-07-24 16:45:12 +03:00
Chunfeng Yun
75ae051efc usb: gadget: bdc: use readl_poll_timeout() to simplify code
Use readl_poll_timeout() to poll register status

Cc: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-07-24 16:45:12 +03:00
Michał Mirosław
abac8a85c8 usb: gadget: udc: atmel: implement .pullup callback
Implement udc->pullup callback, so that udc_connect/disconnect work.
This is needed for composite gadget, as it assumes udc_disconnect()
actually works and calls its ->disconnect callback.

Acked-by: Cristian Birsan <cristian.birsan@microchip.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-07-24 16:45:12 +03:00
Marek Szyprowski
37d9453b05 usb: gadget: udc: Flush pending work also in error path
When binding an UDC driver to the pending gadget fails in
check_pending_gadget_drivers(), the usb_add_gadget_udc_release() function
ends without waiting for the usb_gadget_state_work to finish, what in
turn might cause the whole struct usb_gadget being freed by the caller
before the usb_gadget_state_work being executed.

This can be observed on some boards with USB Mass Storage gadget
compiled-in and kernel booted without the needed module parameters:

dwc2 12480000.hsotg: dwc2_check_params: Invalid parameter besl=1
dwc2 12480000.hsotg: dwc2_check_params: Invalid parameter g_np_tx_fifo_size=1024
dwc2 12480000.hsotg: EPs: 16, dedicated fifos, 7808 entries in SPRAM
Mass Storage Function, version: 2009/09/11
LUN: removable file: (no medium)
no file given for LUN0
g_mass_storage 12480000.hsotg: failed to start g_mass_storage: -22
dwc2: probe of 12480000.hsotg failed with error -22
8<--- cut here ---
Unable to handle kernel NULL pointer dereference at virtual address 00000004
pgd = (ptrval)
[00000004] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 1 PID: 88 Comm: kworker/1:2 Not tainted 5.8.0-rc5-next-20200715-00062-gc5bb489ae825-dirty #8792
Hardware name: Samsung Exynos (Flattened Device Tree)
Workqueue:  0x0 (rcu_gp)
PC is at process_one_work+0x44/0x7dc
...
Process kworker/1:2 (pid: 88, stack limit = 0x(ptrval))
Stack: (0xed9f1f00 to 0xed9f2000)
...
[<c0148590>] (process_one_work) from [<c0148d6c>] (worker_thread+0x44/0x51c)
[<c0148d6c>] (worker_thread) from [<c01500c0>] (kthread+0x158/0x1a0)
[<c01500c0>] (kthread) from [<c0100114>] (ret_from_fork+0x14/0x20)
Exception stack(0xed9f1fb0 to 0xed9f1ff8)
...
---[ end trace 5033c1326a62e5f3 ]---
note: kworker/1:2[88] exited with preempt_count 1

Fix this by flushing pending work in error path.

Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-07-24 16:45:12 +03:00
Greg Kroah-Hartman
eed3c957dd Linux 5.8-rc6
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Merge 5.8-rc6 into usb-next

We need the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-20 09:41:30 +02:00
Alexander A. Klimov
10fadd5e81 usb: gadget: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200710190919.31464-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:33:52 +02:00
Wei Yongjun
25051b55a2 udc: lpc32xx: make symbol 'lpc32xx_usbddata' static
The sparse tool complains as follows:

drivers/usb/gadget/udc/lpc32xx_udc.c:2989:25: warning:
 symbol 'lpc32xx_usbddata' was not declared. Should it be static?

This variable is not used outside of lpc32xx_udc.c, so this commit
marks it static.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20200707105350.7064-1-weiyongjun1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 08:55:18 +02:00
Gustavo A. R. Silva
a74005ab91 usb: gadget: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200707171500.GA13620@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 08:55:18 +02:00
Lee Jones
1a4f38a622 usb: gadget: udc: max3420_udc: Remove set, but never checked variable 'addr'
Fixes the following W=1 kernel build warning(s):

 drivers/usb/gadget/udc/max3420_udc.c: In function ‘max3420_handle_setup’:
 drivers/usb/gadget/udc/max3420_udc.c:626:5: warning: variable ‘addr’ set but not used [-Wunused-but-set-variable]
 626 | u8 addr;
 | ^~~~

Cc: Felipe Balbi <balbi@kernel.org>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Jassi Brar <jaswinder.singh@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-24-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:58 +02:00
Lee Jones
8834f60d6b usb: gadget: udc: mv_u3d_core: Remove unused static const 'driver_desc'
Looks like it's never been used.  Driver was mainlined in 2014.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/gadget/udc/mv_u3d_core.c:35:19: warning: ‘driver_desc’ defined but not used [-Wunused-const-variable=]
 35 | static const char driver_desc[] = DRIVER_DESC;
 | ^~~~~~~~~~~

Cc: Felipe Balbi <balbi@kernel.org>
Cc: Jason Yan <yanaijie@huawei.com>
Cc: Yu Xu <yuxu@marvell.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-23-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:58 +02:00
Lee Jones
b612b0fa8e usb: gadget: function: u_uac1_legacy: Demote obvious misuse of kerneldoc to standard comment blocks
No attempt has been made to document any of the demoted functions here.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/gadget/function/u_uac1_legacy.c:30: warning: Function parameter or member 'i' not described in 'snd_interval_refine_set'
 drivers/usb/gadget/function/u_uac1_legacy.c:30: warning: Function parameter or member 'val' not described in 'snd_interval_refine_set'
 drivers/usb/gadget/function/u_uac1_legacy.c:93: warning: Function parameter or member 'snd' not described in 'playback_default_hw_params'
 drivers/usb/gadget/function/u_uac1_legacy.c:153: warning: Function parameter or member 'card' not described in 'u_audio_playback'
 drivers/usb/gadget/function/u_uac1_legacy.c:153: warning: Function parameter or member 'buf' not described in 'u_audio_playback'
 drivers/usb/gadget/function/u_uac1_legacy.c:153: warning: Function parameter or member 'count' not described in 'u_audio_playback'
 drivers/usb/gadget/function/u_uac1_legacy.c:197: warning: Function parameter or member 'card' not described in 'gaudio_open_snd_dev'
 drivers/usb/gadget/function/u_uac1_legacy.c:257: warning: Function parameter or member 'gau' not described in 'gaudio_close_snd_dev'
 drivers/usb/gadget/function/u_uac1_legacy.c:286: warning: Function parameter or member 'card' not described in 'gaudio_setup'
 drivers/usb/gadget/function/u_uac1_legacy.c:303: warning: Function parameter or member 'the_card' not described in 'gaudio_cleanup'

Cc: Felipe Balbi <balbi@kernel.org>
Cc: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-20-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:58 +02:00
Lee Jones
4ef2dfbdcd usb: gadget: udc: pch_udc: Fix a plethora of function documentation related issues
Ranging from missing descriptions and formatting mishaps to over-documenting
of missing arguments, likely due to bitrot.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/gadget/udc/pch_udc.c:239: warning: Function parameter or member 'request' not described in 'pch_udc_stp_dma_desc'
 drivers/usb/gadget/udc/pch_udc.c:315: warning: Function parameter or member 'irq_work_fall' not described in 'pch_vbus_gpio_data'
 drivers/usb/gadget/udc/pch_udc.c:315: warning: Function parameter or member 'irq_work_rise' not described in 'pch_vbus_gpio_data'
 drivers/usb/gadget/udc/pch_udc.c:482: warning: Function parameter or member 'ep' not described in 'pch_udc_write_csr'
 drivers/usb/gadget/udc/pch_udc.c:482: warning: Excess function parameter 'addr' description in 'pch_udc_write_csr'
 drivers/usb/gadget/udc/pch_udc.c:498: warning: Function parameter or member 'ep' not described in 'pch_udc_read_csr'
 drivers/usb/gadget/udc/pch_udc.c:498: warning: Excess function parameter 'addr' description in 'pch_udc_read_csr'
 drivers/usb/gadget/udc/pch_udc.c:662: warning: Function parameter or member 'ep_in' not described in 'pch_udc_ep_set_bufsz'
 drivers/usb/gadget/udc/pch_udc.c:977: warning: Function parameter or member 'ep' not described in 'pch_udc_ep_enable'
 drivers/usb/gadget/udc/pch_udc.c:977: warning: Function parameter or member 'cfg' not described in 'pch_udc_ep_enable'
 drivers/usb/gadget/udc/pch_udc.c:977: warning: Excess function parameter 'regs' description in 'pch_udc_ep_enable'
 drivers/usb/gadget/udc/pch_udc.c:1010: warning: Function parameter or member 'ep' not described in 'pch_udc_ep_disable'
 drivers/usb/gadget/udc/pch_udc.c:1010: warning: Excess function parameter 'regs' description in 'pch_udc_ep_disable'
 drivers/usb/gadget/udc/pch_udc.c:1030: warning: Function parameter or member 'ep' not described in 'pch_udc_wait_ep_stall'
 drivers/usb/gadget/udc/pch_udc.c:1030: warning: Excess function parameter 'dev' description in 'pch_udc_wait_ep_stall'
 drivers/usb/gadget/udc/pch_udc.c:1341: warning: Function parameter or member 'data' not described in 'pch_vbus_gpio_irq'
 drivers/usb/gadget/udc/pch_udc.c:1341: warning: Excess function parameter 'dev' description in 'pch_vbus_gpio_irq'
 drivers/usb/gadget/udc/pch_udc.c:1365: warning: Function parameter or member 'vbus_gpio_port' not described in 'pch_vbus_gpio_init'
 drivers/usb/gadget/udc/pch_udc.c:1510: warning: Function parameter or member 'dev' not described in 'pch_udc_free_dma_chain'
 drivers/usb/gadget/udc/pch_udc.c:1510: warning: Function parameter or member 'req' not described in 'pch_udc_free_dma_chain'
 drivers/usb/gadget/udc/pch_udc.c:1717: warning: Function parameter or member 'usbep' not described in 'pch_udc_pcd_ep_disable'
 drivers/usb/gadget/udc/pch_udc.c:2006: warning: Excess function parameter 'halt' description in 'pch_udc_pcd_set_wedge'
 drivers/usb/gadget/udc/pch_udc.c:2756: warning: Function parameter or member 'pdev' not described in 'pch_udc_isr'
 drivers/usb/gadget/udc/pch_udc.c:2756: warning: Excess function parameter 'dev' description in 'pch_udc_isr'
 drivers/usb/gadget/udc/pch_udc.c:2906: warning: Function parameter or member 'dev' not described in 'init_dma_pools'
 drivers/usb/gadget/udc/pch_udc.c:2906: warning: Excess function parameter 'pdev' description in 'init_dma_pools'

Cc: Felipe Balbi <balbi@kernel.org>
Cc: Chuhong Yuan <hslester96@gmail.com>
Cc: LAPIS Semiconductor <tomoya-linux@dsn.lapis-semi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-16-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:57 +02:00