Commit Graph

23109 Commits

Author SHA1 Message Date
Kars Mulder
b1b6bed3b5 usb: core: fix quirks_param_set() writing to a const pointer
The function quirks_param_set() takes as argument a const char* pointer
to the new value of the usbcore.quirks parameter. It then casts this
pointer to a non-const char* pointer and passes it to the strsep()
function, which overwrites the value.

Fix this by creating a copy of the value using kstrdup() and letting
that copy be written to by strsep().

Fixes: 027bd6cafd ("usb: core: Add "quirks" parameter for usbcore")
Signed-off-by: Kars Mulder <kerneldev@karsmulder.nl>

Link: https://lore.kernel.org/r/5ee2-5f048a00-21-618c5c00@230659773
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 13:38:21 +02:00
Andy Shevchenko
306c54d0ed usb: hcd: Try MSI interrupts on PCI devices
It appears that some platforms share same IRQ line between several devices,
some of which are EHCI and OHCI controllers. This is neither practical nor
performance-wise, especially in the case when they are supporting MSI.

In order to improve the situation try to allocate MSI and fallback to legacy
IRQ if no MSI available.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200702143045.23429-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 13:38:21 +02:00
Erik Ekman
d2a4309c1a USB: serial: qcserial: add EM7305 QDL product ID
When running qmi-firmware-update on the Sierra Wireless EM7305 in a Toshiba
laptop, it changed product ID to 0x9062 when entering QDL mode:

usb 2-4: new high-speed USB device number 78 using xhci_hcd
usb 2-4: New USB device found, idVendor=1199, idProduct=9062, bcdDevice= 0.00
usb 2-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 2-4: Product: EM7305
usb 2-4: Manufacturer: Sierra Wireless, Incorporated

The upgrade could complete after running
 # echo 1199 9062 > /sys/bus/usb-serial/drivers/qcserial/new_id

qcserial 2-4:1.0: Qualcomm USB modem converter detected
usb 2-4: Qualcomm USB modem converter now attached to ttyUSB0

Signed-off-by: Erik Ekman <erik@kryo.se>
Link: https://lore.kernel.org/r/20200717185118.3640219-1-erik@kryo.se
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-21 09:25:52 +02:00
Johan Hovold
de37458f8c USB: serial: iuu_phoenix: fix led-activity helpers
The set-led command is eight bytes long and starts with a command byte
followed by six bytes of RGB data and ends with a byte encoding a
frequency (see iuu_led() and iuu_rgbf_fill_buffer()).

The led activity helpers had a few long-standing bugs which corrupted
the command packets by inserting a second command byte and thereby
offsetting the RGB data and dropping the frequency in non-xmas mode.

In xmas mode, a related off-by-one error left the frequency field
uninitialised.

Fixes: 60a8fc0171 ("USB: add iuu_phoenix driver")
Reported-by: George Spelvin <lkml@sdf.org>
Link: https://lore.kernel.org/r/20200716085056.31471-1-johan@kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-21 09:25:52 +02:00
Greg Kroah-Hartman
eed3c957dd 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
Greg Kroah-Hartman
6f2c6599ba Merge 5.8-rc6 into tty-next
We need the serial/tty fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-20 09:39:11 +02:00
Kees Cook
3f649ab728 treewide: Remove uninitialized_var() usage
Using uninitialized_var() is dangerous as it papers over real bugs[1]
(or can in the future), and suppresses unrelated compiler warnings
(e.g. "unused variable"). If the compiler thinks it is uninitialized,
either simply initialize the variable or make compiler changes.

In preparation for removing[2] the[3] macro[4], remove all remaining
needless uses with the following script:

git grep '\buninitialized_var\b' | cut -d: -f1 | sort -u | \
	xargs perl -pi -e \
		's/\buninitialized_var\(([^\)]+)\)/\1/g;
		 s:\s*/\* (GCC be quiet|to make compiler happy) \*/$::g;'

drivers/video/fbdev/riva/riva_hw.c was manually tweaked to avoid
pathological white-space.

No outstanding warnings were found building allmodconfig with GCC 9.3.0
for x86_64, i386, arm64, arm, powerpc, powerpc64le, s390x, mips, sparc64,
alpha, and m68k.

[1] https://lore.kernel.org/lkml/20200603174714.192027-1-glider@google.com/
[2] https://lore.kernel.org/lkml/CA+55aFw+Vbj0i=1TGqCR5vQkCzWJ0QxK6CernOU6eedsudAixw@mail.gmail.com/
[3] https://lore.kernel.org/lkml/CA+55aFwgbgqhbp1fkxvRKEpzyR5J8n1vKT1VZdz9knmPuXhOeg@mail.gmail.com/
[4] https://lore.kernel.org/lkml/CA+55aFz2500WfbKXAx8s67wrm9=yVJu65TpLgN_ybYNv0VEOKA@mail.gmail.com/

Reviewed-by: Leon Romanovsky <leonro@mellanox.com> # drivers/infiniband and mlx4/mlx5
Acked-by: Jason Gunthorpe <jgg@mellanox.com> # IB
Acked-by: Kalle Valo <kvalo@codeaurora.org> # wireless drivers
Reviewed-by: Chao Yu <yuchao0@huawei.com> # erofs
Signed-off-by: Kees Cook <keescook@chromium.org>
2020-07-16 12:35:15 -07:00
Greg Kroah-Hartman
c7300cdf8f Merge tag 'usb-serial-5.8-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:

USB-serial fixes for 5.8-rc6

Here's a fix for 5.8 addressing a long-standing bug in iuu_phoenix.

* tag 'usb-serial-5.8-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
  USB: serial: iuu_phoenix: fix memory corruption
2020-07-16 17:30:59 +02:00
Johan Hovold
e7b931bee7 USB: serial: iuu_phoenix: fix memory corruption
The driver would happily overwrite its write buffer with user data in
256 byte increments due to a removed buffer-space sanity check.

Fixes: 5fcf62b0f1 ("tty: iuu_phoenix: fix locking.")
Cc: stable <stable@vger.kernel.org>     # 2.6.31
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-16 10:20:21 +02:00
Lee Jones
313da01ad5 usb: misc: sisusbvga: Move static const tables out to different include file
sisusb_init.h is included by multiple source files, but the big data
tables contained are only referenced by one of them, leaving the tables
'defined but not used' by the remainder.  We have a choice to either
place them inside the source file, taking up may lines and potentially
overwhelming the source file OR tuck them away neatly inside their own
headerfile.  The latter was chosen.

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

 In file included from drivers/usb/misc/sisusbvga/sisusb.c:54:
 drivers/usb/misc/sisusbvga/sisusb_init.h:664:34: warning: ‘SiSUSB_VCLKData’ defined but not used [-Wunused-const-variable=]
 664 | static const struct SiS_VCLKData SiSUSB_VCLKData[] = {
 | ^~~~~~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:406:35: warning: ‘SiSUSB_CRT1Table’ defined but not used [-Wunused-const-variable=]
 406 | static const struct SiS_CRT1Table SiSUSB_CRT1Table[] = {
 | ^~~~~~~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:348:30: warning: ‘SiSUSB_RefIndex’ defined but not used [-Wunused-const-variable=]
 348 | static const struct SiS_Ext2 SiSUSB_RefIndex[] = {
 | ^~~~~~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:269:29: warning: ‘SiSUSB_EModeIDTable’ defined but not used [-Wunused-const-variable=]
 269 | static const struct SiS_Ext SiSUSB_EModeIDTable[] = {
 | ^~~~~~~~~~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:238:36: warning: ‘SiSUSB_StandTable’ defined but not used [-Wunused-const-variable=]
 238 | static const struct SiS_StandTable SiSUSB_StandTable[] = {
 | ^~~~~~~~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:201:37: warning: ‘SiSUSB_ModeResInfo’ defined but not used [-Wunused-const-variable=]
 201 | static const struct SiS_ModeResInfo SiSUSB_ModeResInfo[] = {
 | ^~~~~~~~~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:196:28: warning: ‘SiSUSB_SModeIDTable’ defined but not used [-Wunused-const-variable=]
 196 | static const struct SiS_St SiSUSB_SModeIDTable[] = {
 | ^~~~~~~~~~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:183:28: warning: ‘SiS_VGA_DAC’ defined but not used [-Wunused-const-variable=]
 183 | static const unsigned char SiS_VGA_DAC[] = {
 | ^~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:172:28: warning: ‘SiS_EGA_DAC’ defined but not used [-Wunused-const-variable=]
 172 | static const unsigned char SiS_EGA_DAC[] = {
 | ^~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:161:28: warning: ‘SiS_CGA_DAC’ defined but not used [-Wunused-const-variable=]
 161 | static const unsigned char SiS_CGA_DAC[] = {
 | ^~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:150:28: warning: ‘SiS_MDA_DAC’ defined but not used [-Wunused-const-variable=]
 150 | static const unsigned char SiS_MDA_DAC[] = {
 | ^~~~~~~~~~~

Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200715093209.3165641-9-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 17:25:57 +02:00
Lee Jones
4805ad2488 usb: misc: sisusbvga: sisusb_init: Remove genunine unused static const arrays
These are not referenced anywhere in the kernel.

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

 drivers/usb/misc/sisusbvga/sisusb_init.h:171:29: warning: ‘ModeIndex_1280x1024’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:170:29: warning: ‘ModeIndex_1280x768’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:169:29: warning: ‘ModeIndex_1280x720’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:168:29: warning: ‘ModeIndex_1152x864’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:167:29: warning: ‘ModeIndex_1024x576’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:166:29: warning: ‘ModeIndex_1024x768’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:165:29: warning: ‘ModeIndex_960x600’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:164:29: warning: ‘ModeIndex_960x540’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:163:29: warning: ‘ModeIndex_856x480’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:162:29: warning: ‘ModeIndex_848x480’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:161:29: warning: ‘ModeIndex_800x600’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:160:29: warning: ‘ModeIndex_800x480’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:159:29: warning: ‘ModeIndex_768x576’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:158:29: warning: ‘ModeIndex_720x576’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:157:29: warning: ‘ModeIndex_720x480’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:156:29: warning: ‘ModeIndex_640x480’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:155:29: warning: ‘ModeIndex_640x400’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:154:29: warning: ‘ModeIndex_512x384’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:153:29: warning: ‘ModeIndex_400x300’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:152:29: warning: ‘ModeIndex_320x240’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:151:29: warning: ‘ModeIndex_320x200’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:232:37: warning: ‘SiSUSB_ModeResInfo’ defined but not used [-Wunused-const-variable=]

Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200715093209.3165641-8-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 17:25:57 +02:00
Lee Jones
e606c759f4 usb: c67x00: c67x00-hcd: Demote obvious misuse of kerneldoc to standard comment blocks
No attempt has been made to document any of the functions here.

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

 drivers/usb/c67x00/c67x00-hcd.c:237: warning: Function parameter or member 'sie' not described in 'c67x00_hcd_irq'
 drivers/usb/c67x00/c67x00-hcd.c:237: warning: Function parameter or member 'int_status' not described in 'c67x00_hcd_irq'
 drivers/usb/c67x00/c67x00-hcd.c:237: warning: Function parameter or member 'msg' not described in 'c67x00_hcd_irq'
 drivers/usb/c67x00/c67x00-hcd.c:267: warning: Function parameter or member 'hcd' not described in 'c67x00_hcd_start'
 drivers/usb/c67x00/c67x00-hcd.c:279: warning: Function parameter or member 'hcd' not described in 'c67x00_hcd_stop'

Cc: Peter Korsgaard <jacmet@sunsite.dk>
Cc: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200715093209.3165641-7-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 17:25:57 +02:00
Lee Jones
ddcb6c6ad7 usb: class: cdc-wdm: Provide description for usb_cdc_wdm_register()'s manage_power arg
A good attempt was made to document everything else.

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

 drivers/usb/class/cdc-wdm.c:961: warning: Function parameter or member 'manage_power' not described in 'usb_cdc_wdm_register'

Cc: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200715093209.3165641-6-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 17:25:57 +02:00
Lee Jones
56976249bd usb: mtu3: mtu3_trace: Supply missing mtu3_debug.h include file
If the header file containing a function's prototype isn't included by
the sourcefile containing the associated function, the build system
complains of missing prototypes.

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

 drivers/usb/mtu3/mtu3_trace.c:13:6: warning: no previous prototype for ‘mtu3_dbg_trace’ [-Wmissing-prototypes]
 13 | void mtu3_dbg_trace(struct device *dev, const char *fmt, ...)
 | ^~~~~~~~~~~~~~

Cc: Chunfeng Yun <chunfeng.yun@mediatek.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200715093209.3165641-5-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 17:25:57 +02:00
Lee Jones
680b512726 usb: mtu3: mtu3_trace: Function headers are not suitable for kerneldoc
Kerneldoc headers should only be used to document functions and data
structures.

Cc: Chunfeng Yun <chunfeng.yun@mediatek.com>
Cc: linux-mediatek@lists.infradead.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200715093209.3165641-4-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 17:25:57 +02:00
Lee Jones
eeed948c1d usb: dwc2: gadget: Avoid pointless read of EP control register
Commit ec1f9d9f01 ("usb: dwc2: gadget: parity fix in isochronous mode") moved
these checks to dwc2_hsotg_change_ep_iso_parity() back in 2015.  The assigned
value hasn't been read back since.  Let's remove the unnecessary H/W read.

Fixes the following W=1 warning:

 drivers/usb/dwc2/gadget.c: In function ‘dwc2_hsotg_epint’:
 drivers/usb/dwc2/gadget.c:2981:6: warning: variable ‘ctrl’ set but not used [-Wunused-but-set-variable]
 2981 | u32 ctrl;
 | ^~~~

Cc: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Link: https://lore.kernel.org/r/20200715093209.3165641-3-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 17:25:57 +02:00
Lee Jones
9607f3cd8b usb: dwc2: gadget: Make use of GINTMSK2
The value obtained from GINTSTS2 should be masked with the GINTMSK2
value.  Looks like this has been broken since
dwc2_gadget_wkup_alert_handler() was added back in 2018.

Also fixes the following W=1 warning:

 drivers/usb/dwc2/gadget.c: In function ‘dwc2_gadget_wkup_alert_handler’:
 drivers/usb/dwc2/gadget.c:259:6: warning: variable ‘gintmsk2’ set but not used [-Wunused-but-set-variable]
 259 | u32 gintmsk2;
 | ^~~~~~~~

Cc: Ben Dooks <ben@simtec.co.uk>
Fixes: 187c5298a1 ("usb: dwc2: gadget: Add handler for WkupAlert interrupt")
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Link: https://lore.kernel.org/r/20200715093209.3165641-2-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 17:25:56 +02:00
YueHaibing
258e858802 USB: musb: Remove unused inline function
It is never used, so can remove it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20200715031204.17308-1-yuehaibing@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:48:10 +02:00
Changming Liu
2b53a19284 USB: sisusbvga: Fix a potential UB casued by left shifting a negative value
The char buffer buf, receives data directly from user space,
so its content might be negative and its elements are left
shifted to form an unsigned integer.

Since left shifting a negative value is undefined behavior, thus
change the char to u8 to elimintate this UB.

Signed-off-by: Changming Liu <charley.ashbringer@gmail.com>
Link: https://lore.kernel.org/r/20200711043018.928-1-charley.ashbringer@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:48:10 +02:00
Suraj Upadhyay
48025b4f3f USB: Remove pci-dma-compat wrapper APIs.
The legacy API wrappers in include/linux/pci-dma-compat.h
should go away as it creates unnecessary midlayering
for include/linux/dma-mapping.h APIs, instead use dma-mapping.h
APIs directly.

The patch has been generated with the coccinelle script below
and compile-tested.

@@@@
- PCI_DMA_BIDIRECTIONAL
+ DMA_BIDIRECTIONAL

@@@@
- PCI_DMA_TODEVICE
+ DMA_TO_DEVICE

@@@@
- PCI_DMA_FROMDEVICE
+ DMA_FROM_DEVICE

@@@@
- PCI_DMA_NONE
+ DMA_NONE

@@ expression E1, E2, E3; @@
- pci_alloc_consistent(E1, E2, E3)
+ dma_alloc_coherent(&E1->dev, E2, E3, GFP_)

@@ expression E1, E2, E3; @@
- pci_zalloc_consistent(E1, E2, E3)
+ dma_alloc_coherent(&E1->dev, E2, E3, GFP_)

@@ expression E1, E2, E3, E4; @@
- pci_free_consistent(E1, E2, E3, E4)
+ dma_free_coherent(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_map_single(E1, E2, E3, E4)
+ dma_map_single(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_unmap_single(E1, E2, E3, E4)
+ dma_unmap_single(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4, E5; @@
- pci_map_page(E1, E2, E3, E4, E5)
+ dma_map_page(&E1->dev, E2, E3, E4, E5)

@@ expression E1, E2, E3, E4; @@
- pci_unmap_page(E1, E2, E3, E4)
+ dma_unmap_page(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_map_sg(E1, E2, E3, E4)
+ dma_map_sg(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_unmap_sg(E1, E2, E3, E4)
+ dma_unmap_sg(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_single_for_cpu(E1, E2, E3, E4)
+ dma_sync_single_for_cpu(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_single_for_device(E1, E2, E3, E4)
+ dma_sync_single_for_device(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_sg_for_cpu(E1, E2, E3, E4)
+ dma_sync_sg_for_cpu(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_sg_for_device(E1, E2, E3, E4)
+ dma_sync_sg_for_device(&E1->dev, E2, E3, E4)

@@ expression E1, E2; @@
- pci_dma_mapping_error(E1, E2)
+ dma_mapping_error(&E1->dev, E2)

@@ expression E1, E2; @@
- pci_set_consistent_dma_mask(E1, E2)
+ dma_set_coherent_mask(&E1->dev, E2)

@@ expression E1, E2; @@
- pci_set_dma_mask(E1, E2)
+ dma_set_mask(&E1->dev, E2)

Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com>
Link: https://lore.kernel.org/r/20200714115249.GA8563@blackclown
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:48:10 +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
Alexander A. Klimov
36774c5ac8 usb: phy: 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/20200710191842.32561-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:33:51 +02:00
Alexander A. Klimov
10623b879d usb: dwc3: 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/20200711135804.19735-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:33:51 +02:00
Alexander A. Klimov
d6c3c6c09f usb: host: xhci-plat: 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/20200711135813.19798-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:33:50 +02:00
Alexander A. Klimov
952dd40e05 usb: typec: 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/20200711135825.19862-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:33:50 +02:00
Alexander A. Klimov
681aa3cf06 USB: ohci: 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/20200713092314.32774-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:33:50 +02:00
Johan Hovold
e0439cd975 USB: serial: sierra: clean up special-interface handling
Clean up the handling of special interfaces that either should be
ignored or that need a larger number of URBs.

Commit 66f092ed3b ("USB: serial: sierra: unify quirk handling logic")
replaced the previous is_blacklisted() and is_highmemory() helpers with
a single is_quirk() helper which made it even harder to understand what
the interface lists were used for.

Rename the interface-list struct, its members and the interface-lookup
helper and restructure the code somewhat in order to make it more
self-explanatory.

Link: https://lore.kernel.org/r/20200713153936.18032-1-johan@kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-14 11:50:57 +02:00
Johan Hovold
16045babc7 USB: serial: cp210x: use in-kernel types in port data
The port data is not exported to user space so use the in-kernel u8
type.

Link: https://lore.kernel.org/r/20200713105517.27796-6-johan@kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-14 11:50:45 +02:00
Johan Hovold
ba84190eab USB: serial: cp210x: drop unnecessary packed attributes
Drop unnecessary packed attributes from structs without padding.

Link: https://lore.kernel.org/r/20200713105517.27796-5-johan@kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-14 11:50:36 +02:00
Johan Hovold
de9c7e9f27 USB: serial: cp210x: add support for TIOCGICOUNT
Enable TIOCGICOUNT to allow reading out the (unused) interrupt counters
and error statistics.

Note that modem-status events are currently left unimplemented as they
appear to be buffered on at least CP2102 and therefore cannot be used to
implement TIOCMIWAIT.

Link: https://lore.kernel.org/r/20200713105517.27796-4-johan@kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-14 11:50:28 +02:00
Johan Hovold
a7207e9835 USB: serial: cp210x: add support for line-status events
Add support for line-status events that specifically can be used to
detect and report parity errors.

Enable the device's event-insertion mode whenever input-parity checking
is requested. This will insert line and modem status events into the
data stream.

Note that modem-status changes appear to be buffered until a character
is received (at least on CP2102) and support is therefore left
unimplemented.

On at least one type of these chips (CP2102), line breaks are not
reported as expected either (regardless of whether SERIAL_BREAK_CHAR is
set) so do not enable event-mode when !IGNBRK is requested for now.

Link: https://lore.kernel.org/r/20200713105517.27796-3-johan@kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-14 11:50:14 +02:00
Johan Hovold
bcbb9d812e USB: serial: cp210x: disable interface on errors in open
Try to disable the serial interface in the unlikely event that generic
open() fails.

Link: https://lore.kernel.org/r/20200713105517.27796-2-johan@kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-14 11:47:30 +02:00
Greg Kroah-Hartman
d1c0d96535 Merge tag 'fixes-for-v5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
Felipe writes:

USB: fixes for v5.8-rc3

Adding support for recent Intel devices (Tiger Lake and Jasper Lake)
on dwc3. We have some endianess fixes in cdns3, a memleak fix in
gr_udc and lock API usage fix in the legacy f_uac1

Signed-off-by: Felipe Balbi <balbi@kernel.org>

* tag 'fixes-for-v5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb:
  usb: gadget: function: fix missing spinlock in f_uac1_legacy
  usb: gadget: udc: atmel: fix uninitialized read in debug printk
  usb: gadget: udc: atmel: remove outdated comment in usba_ep_disable()
  usb: dwc2: Fix shutdown callback in platform
  usb: cdns3: trace: fix some endian issues
  usb: cdns3: ep0: fix some endian issues
  usb: gadget: udc: gr_udc: fix memleak on error handling path in gr_ep_init()
  usb: gadget: fix langid kernel-doc warning in usbstring.c
  usb: dwc3: pci: add support for the Intel Jasper Lake
  usb: dwc3: pci: add support for the Intel Tiger Lake PCH -H variant
2020-07-10 12:40:04 +02:00
Tom Rix
211f083473 USB: c67x00: fix use after free in c67x00_giveback_urb
clang static analysis flags this error

c67x00-sched.c:489:55: warning: Use of memory after it is freed [unix.Malloc]
        usb_hcd_giveback_urb(c67x00_hcd_to_hcd(c67x00), urb, urbp->status);
                                                             ^~~~~~~~~~~~
Problem happens in this block of code

	c67x00_release_urb(c67x00, urb);
	usb_hcd_unlink_urb_from_ep(c67x00_hcd_to_hcd(c67x00), urb);
	spin_unlock(&c67x00->lock);
	usb_hcd_giveback_urb(c67x00_hcd_to_hcd(c67x00), urb, urbp->status);

In the call to c67x00_release_urb has this freeing of urbp

	urbp = urb->hcpriv;
	urb->hcpriv = NULL;
	list_del(&urbp->hep_node);
	kfree(urbp);

And so urbp is freed before usb_hcd_giveback_urb uses it as its 3rd
parameter.

Since all is required is the status, pass the status directly as is
done in c64x00_urb_dequeue

Fixes: e9b29ffc51 ("USB: add Cypress c67x00 OTG controller HCD driver")
Signed-off-by: Tom Rix <trix@redhat.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200708131243.24336-1-trix@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 09:01:41 +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
Gustavo A. R. Silva
8b84724e9e usb: host: 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/20200707195023.GA3792@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 08:55:18 +02:00
Gustavo A. R. Silva
e288fc9828 USB: OHCI: 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/20200707195351.GA4061@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 08:55:18 +02:00
Gustavo A. R. Silva
0d9b6d49fe usb: 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/20200707195607.GA4198@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 08:55:17 +02:00
Gustavo A. R. Silva
4e71e07943 usb: phy: 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/20200707200040.GA4525@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 08:55:17 +02:00
Gustavo A. R. Silva
2da3b53c78 usbip: 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>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20200707195214.GA3932@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 18:06:35 +02:00
Alexander A. Klimov
e46d8cb5f1 USB: storage: 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/20200708184903.17350-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 18:06:12 +02:00
Lee Jones
f535ad6c73 usb: host: xhci-plat: Do not define 'struct acpi_device_id' when !CONFIG_ACPI
Since ACPI_PTR() is used to NULLify the value when !CONFIG_ACPI,
struct usb_xhci_acpi_match becomes defined by unused.

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

 drivers/usb/host/xhci-plat.c:457:36: warning: ‘usb_xhci_acpi_match’ defined but not used [-Wunused-const-variable=]
 457 | static const struct acpi_device_id usb_xhci_acpi_match[] = {
 | ^~~~~~~~~~~~~~~~~~~

Cc: Mathias Nyman <mathias.nyman@intel.com>
Cc: Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-33-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:59 +02:00
Lee Jones
a6a6d06f33 usb: host: fhci-sched: Remove unused variable 'td'
'td' has been completely unused since the driver's inception in 2009.

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

 drivers/usb/host/fhci-sched.c: In function ‘fhci_queue_urb’:
 drivers/usb/host/fhci-sched.c:704:13: warning: variable ‘td’ set but not used [-Wunused-but-set-variable]
 704 | struct td *td;
 | ^~

Cc: Shlomi Gridish <gridish@freescale.com>
Cc: Jerry Huang <Chang-Ming.Huang@freescale.com>
Cc: Peter Barada <peterb@logicpd.com>
Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-32-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:59 +02:00
Lee Jones
d45f72bc3b usb: host: fhci-tds: Remove unused variables 'buf' and 'extra_data'
Neither have been used since the driver's inception in 2009.

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

 drivers/usb/host/fhci-tds.c: In function ‘fhci_flush_bds’:
 drivers/usb/host/fhci-tds.c:472:6: warning: variable ‘buf’ set but not used [-Wunused-but-set-variable]
 472 | u32 buf;
 | ^~~
 drivers/usb/host/fhci-tds.c:470:6: warning: variable ‘extra_data’ set but not used [-Wunused-but-set-variable]
 470 | u16 extra_data;
 | ^~~~~~~~~~
 drivers/usb/host/fhci-tds.c: In function ‘fhci_flush_actual_frame’:
 drivers/usb/host/fhci-tds.c:527:6: warning: variable ‘extra_data’ set but not used [-Wunused-but-set-variable]
 527 | u16 extra_data;
 | ^~~~~~~~~~

Cc: Shlomi Gridish <gridish@freescale.com>
Cc: Jerry Huang <Chang-Ming.Huang@freescale.com>
Cc: Peter Barada <peterb@logicpd.com>
Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-31-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:59 +02:00
Lee Jones
b789710de5 usb: dwc3: dwc3-qcom: Do not define 'struct acpi_device_id' when !CONFIG_ACPI
Since ACPI_PTR() is used to NULLify the value when !CONFIG_ACPI,
struct dwc3_qcom_acpi_match becomes defined by unused.

Also need to place the platform data obtained via the matching process
inside the #ifdef, else that becomes unused too.

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

 drivers/usb/dwc3/dwc3-qcom.c:761:36: warning: ‘dwc3_qcom_acpi_match’ defined but not used [-Wunused-const-variable=]
 761 | static const struct acpi_device_id dwc3_qcom_acpi_match[] = {
 | ^~~~~~~~~~~~~~~~~~~~

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: linux-arm-msm@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-30-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:59 +02:00
Lee Jones
6dba06ceee usb: host: ehci-platform: Do not define 'struct acpi_device_id' when !CONFIG_ACPI
Since ACPI_PTR() is used to NULLify the value when !CONFIG_ACPI,
struct ehci_acpi_match becomes defined by unused.

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

 drivers/usb/host/ehci-platform.c:478:36: warning: ‘ehci_acpi_match’ defined but not used [-Wunused-const-variable=]
 478 | static const struct acpi_device_id ehci_acpi_match[] = {
 | ^~~~~~~~~~~~~~~

Cc: Tony Prisk <linux@prisktech.co.nz>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Steven Brown <sbrown@cortland.com>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: de Goede <hdegoede@redhat.com>
Cc: Michael Buesch <m@bues.ch>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-29-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:59 +02:00
Lee Jones
02ec8a098f usb: early: xhci-dbc: File headers are not good candidates for kerneldoc
Demote xhci-dbc's file header to a standard comment block.

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

 drivers/usb/early/xhci-dbc.c:10: warning: Function parameter or member 'fmt' not described in 'pr_fmt'

Cc: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-28-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:59 +02:00
Lee Jones
f0f705fcfe usb: early: xhci-dbc: Supply missing 'xhci-dbgp.h' headerfile
If the header file containing a function's prototype isn't included by
the sourcefile containing the associated function, the build system
complains of missing prototypes.

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

 drivers/usb/early/ehci-dbgp.c: In function ‘early_dbgp_write’:
 drivers/usb/early/ehci-dbgp.c:915:13: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
 915 | int chunk, ret;
 | ^~~
 drivers/usb/early/xhci-dbc.c:600:12: warning: no previous prototype for ‘early_xdbc_parse_parameter’ [-Wmissing-prototypes]
 600 | int __init early_xdbc_parse_parameter(char *s)
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~
 drivers/usb/early/xhci-dbc.c:653:12: warning: no previous prototype for ‘early_xdbc_setup_hardware’ [-Wmissing-prototypes]
 653 | int __init early_xdbc_setup_hardware(void)
 | ^~~~~~~~~~~~~~~~~~~~~~~~~
 drivers/usb/early/xhci-dbc.c:910:13: warning: no previous prototype for ‘early_xdbc_register_console’ [-Wmissing-prototypes]
 910 | void __init early_xdbc_register_console(void)
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~

Cc: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Jann Horn <jannh@google.com>
Link: https://lore.kernel.org/r/20200706133341.476881-27-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:59 +02:00
Lee Jones
beb368a4b9 usb: early: ehci-dbgp: Remove set but never checked variable 'ret'
'ret' hasn't  been checked since the driver's inception in 2009.

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

 drivers/usb/early/ehci-dbgp.c: In function ‘early_dbgp_write’:
 drivers/usb/early/ehci-dbgp.c:915:13: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
 915 | int chunk, ret;
 | ^~~

Cc: Sumit Garg <sumit.garg@linaro.org>
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Link: https://lore.kernel.org/r/20200706133341.476881-26-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:58 +02:00