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The source for the Linux kernel used in Windows Subsystem for Linux 2 (WSL2)
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Guenter Roeck 2f606da782 mfd: sm501: Set coherent_dma_mask when creating subdevices 
Instantiating the sm501 OHCI subdevice results in a kernel warning.

sm501-usb sm501-usb: SM501 OHCI
sm501-usb sm501-usb: new USB bus registered, assigned bus number 1
WARNING: CPU: 0 PID: 1 at ./include/linux/dma-mapping.h:516
ohci_init+0x194/0x2d8
Modules linked in:

CPU: 0 PID: 1 Comm: swapper Tainted: G        W
4.18.0-rc7-00178-g0b5b1f9a78b5 #1
PC is at ohci_init+0x194/0x2d8
PR is at ohci_init+0x168/0x2d8
PC  : 8c27844c SP  : 8f81dd94 SR  : 40008001
TEA : 29613060
R0  : 00000000 R1  : 00000000 R2  : 00000000 R3  : 00000202
R4  : 8fa98b88 R5  : 8c277e68 R6  : 00000000 R7  : 00000000
R8  : 8f965814 R9  : 8c388100 R10 : 8fa98800 R11 : 8fa98928
R12 : 8c48302c R13 : 8fa98920 R14 : 8c48302c
MACH: 00000096 MACL: 0000017c GBR : 00000000 PR  : 8c278420

Call trace:
 [<(ptrval)>] usb_add_hcd+0x1e8/0x6ec
 [<(ptrval)>] _dev_info+0x0/0x54
 [<(ptrval)>] arch_local_save_flags+0x0/0x8
 [<(ptrval)>] arch_local_irq_restore+0x0/0x24
 [<(ptrval)>] ohci_hcd_sm501_drv_probe+0x114/0x2d8
...

Initialize coherent_dma_mask when creating SM501 subdevices to fix
the problem.

Fixes: b6d6454fdb ("mfd: SM501 core driver")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 		2018-08-16 10:13:57 +01:00
Documentation mfd: bd71837: Devicetree bindings for ROHM BD71837 PMIC 2018-08-16 10:13:50 +01:00
LICENSES LICENSES: Add Linux-OpenIB license text 2018-04-27 16:41:53 -06:00
arch arm/arm64: configs: Remove the MFD_ prefix for MFD_CROS_EC_I2C/SPI symbols. 2018-07-03 12:40:44 -07:00
block for-linus-20180629 2018-06-30 10:47:46 -07:00
certs certs/blacklist: fix const confusion 2018-06-26 09:43:03 -07:00
crypto Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
drivers mfd: sm501: Set coherent_dma_mask when creating subdevices 2018-08-16 10:13:57 +01:00
firmware kbuild: remove all dummy assignments to obj- 2017-11-18 11:46:06 +09:00
fs for-4.18-rc2-tag 2018-07-01 12:38:16 -07:00
include mfd: bd71837: Core driver for ROHM BD71837 PMIC 2018-08-16 10:13:37 +01:00
init Kbuild fixes for v4.18 2018-06-30 13:05:30 -07:00
ipc ipc: use new return type vm_fault_t 2018-06-15 07:55:25 +09:00
kernel Add a missing export required by riscv and unicore 2018-07-01 10:45:13 -07:00
lib for-linus-20180629 2018-06-30 10:47:46 -07:00
mm slub: fix failure when we delete and create a slab cache 2018-06-28 11:16:44 -07:00
net net: handle NULL ->poll gracefully 2018-06-29 06:51:51 -07:00
samples VFIO updates for v4.18 2018-06-12 13:11:26 -07:00
scripts Kbuild fixes for v4.18 2018-06-30 13:05:30 -07:00
security selinux/stable-4.18 PR 20180629 2018-06-30 11:15:12 -07:00
sound ALSA: seq: Fix UBSAN warning at SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT ioctl 2018-06-25 11:18:04 +02:00
tools Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-06-30 11:42:14 -07:00
usr kbuild: rename built-in.o to built-in.a 2018-03-26 02:01:19 +09:00
virt KVM: arm64: Prevent KVM_COMPAT from being selected 2018-06-21 17:17:50 +01:00
.clang-format clang-format: add configuration file 2018-04-11 10:28:35 -07:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
…
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore Kbuild updates for v4.17 (2nd) 2018-04-15 17:21:30 -07:00
.mailmap Merge branch 'asoc-4.17' into asoc-4.18 for compress dependencies 2018-04-26 12:24:28 +01:00
COPYING COPYING: use the new text with points to the license files 2018-03-23 12:41:45 -06:00
CREDITS MAINTAINERS/CREDITS: Drop METAG ARCHITECTURE 2018-03-05 16:34:24 +00:00
Kbuild Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Kconfig kconfig: add basic helper macros to scripts/Kconfig.include 2018-05-29 03:31:19 +09:00
MAINTAINERS Immutable branch (mfd, chrome) due for the v4.19 window 2018-07-27 08:11:37 +01:00
Makefile Linux 4.18-rc3 2018-07-01 16:04:53 -07:00
README Docs: Added a pointer to the formatted docs to README 2018-03-21 09:02:53 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.