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Nathan Chancellor 285b405b3a usb: dwc2: Fix parameter type in function pointer prototype [ Upstream commit `362b9398c9` ] When booting up on a Raspberry Pi 4 with Control Flow Integrity checking enabled, the following warning/panic happens: [ 1.626435] CFI failure (target: dwc2_set_bcm_params+0x0/0x4): [ 1.632408] WARNING: CPU: 0 PID: 32 at kernel/cfi.c:30 __cfi_check_fail+0x54/0x5c [ 1.640021] Modules linked in: [ 1.643137] CPU: 0 PID: 32 Comm: kworker/0:1 Not tainted 5.8.0-rc6-next-20200724-00051-g89ba619726de #1 [ 1.652693] Hardware name: Raspberry Pi 4 Model B Rev 1.2 (DT) [ 1.658637] Workqueue: events deferred_probe_work_func [ 1.663870] pstate: 60000005 (nZCv daif -PAN -UAO BTYPE=--) [ 1.669542] pc : __cfi_check_fail+0x54/0x5c [ 1.673798] lr : __cfi_check_fail+0x54/0x5c [ 1.678050] sp : ffff8000102bbaa0 [ 1.681419] x29: ffff8000102bbaa0 x28: ffffab09e21c7000 [ 1.686829] x27: 0000000000000402 x26: ffff0000f6e7c228 [ 1.692238] x25: 00000000fb7cdb0d x24: 0000000000000005 [ 1.697647] x23: ffffab09e2515000 x22: ffffab09e069a000 [ 1.703055] x21: 4c550309df1cf4c1 x20: ffffab09e2433c60 [ 1.708462] x19: ffffab09e160dc50 x18: ffff0000f6e8cc78 [ 1.713870] x17: 0000000000000041 x16: ffffab09e0bce6f8 [ 1.719278] x15: ffffab09e1c819b7 x14: 0000000000000003 [ 1.724686] x13: 00000000ffffefff x12: 0000000000000000 [ 1.730094] x11: 0000000000000000 x10: 00000000ffffffff [ 1.735501] x9 : c932f7abfc4bc600 x8 : c932f7abfc4bc600 [ 1.740910] x7 : 077207610770075f x6 : ffff0000f6c38f00 [ 1.746317] x5 : 0000000000000000 x4 : 0000000000000000 [ 1.751723] x3 : 0000000000000000 x2 : 0000000000000000 [ 1.757129] x1 : ffff8000102bb7d8 x0 : 0000000000000032 [ 1.762539] Call trace: [ 1.765030] __cfi_check_fail+0x54/0x5c [ 1.768938] __cfi_check+0x5fa6c/0x66afc [ 1.772932] dwc2_init_params+0xd74/0xd78 [ 1.777012] dwc2_driver_probe+0x484/0x6ec [ 1.781180] platform_drv_probe+0xb4/0x100 [ 1.785350] really_probe+0x228/0x63c [ 1.789076] driver_probe_device+0x80/0xc0 [ 1.793247] __device_attach_driver+0x114/0x160 [ 1.797857] bus_for_each_drv+0xa8/0x128 [ 1.801851] __device_attach.llvm.14901095709067289134+0xc0/0x170 [ 1.808050] bus_probe_device+0x44/0x100 [ 1.812044] deferred_probe_work_func+0x78/0xb8 [ 1.816656] process_one_work+0x204/0x3c4 [ 1.820736] worker_thread+0x2f0/0x4c4 [ 1.824552] kthread+0x174/0x184 [ 1.827837] ret_from_fork+0x10/0x18 CFI validates that all indirect calls go to a function with the same exact function pointer prototype. In this case, dwc2_set_bcm_params is the target, which has a parameter of type 'struct dwc2_hsotg ', but it is being implicitly cast to have a parameter of type 'void ' because that is the set_params function pointer prototype. Make the function pointer protoype match the definitions so that there is no more violation. Fixes: `7de1debcd2` ("usb: dwc2: Remove platform static params") Link: https://github.com/ClangBuiltLinux/linux/issues/1107 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Felipe Balbi <balbi@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-10-29 09:07:06 +01:00
arch	x86/fpu: Allow multiple bits in clearcpuid= parameter	2020-10-29 09:07:00 +01:00
block	block: ensure bdi->io_pages is always initialized	2020-09-12 13:39:11 +02:00
certs	Replace magic for trusting the secondary keyring with #define	2018-09-09 19:55:54 +02:00
crypto	crypto: algif_skcipher - EBUSY on aio should be an error	2020-10-29 09:07:01 +01:00
Documentation	x86/fpu: Allow multiple bits in clearcpuid= parameter	2020-10-29 09:07:00 +01:00
drivers	usb: dwc2: Fix parameter type in function pointer prototype	2020-10-29 09:07:06 +01:00
firmware	Fix built-in early-load Intel microcode alignment	2020-01-23 08:20:30 +01:00
fs	cifs: Return the error from crypt_message when enc/dec key not found.	2020-10-29 09:07:00 +01:00
include	net/ipv4: always honour route mtu during forwarding	2020-10-29 09:06:58 +01:00
init	x86: Fix early boot crash on gcc-10, third try	2020-05-20 08:17:15 +02:00
ipc	ipc/util.c: sysvipc_find_ipc() incorrectly updates position index	2020-05-20 08:17:07 +02:00
kernel	perf: Fix task_function_call() error handling	2020-10-14 09:51:14 +02:00
lib	Fonts: Support FONT_EXTRA_WORDS macros for built-in fonts	2020-10-14 09:51:10 +02:00
mm	mm: khugepaged: recalculate min_free_kbytes after memory hotplug as expected by khugepaged	2020-10-14 09:51:14 +02:00
net	icmp: randomize the global rate limiter	2020-10-29 09:06:59 +01:00
samples	samples: bpf: Fix build error	2020-06-03 08:17:55 +02:00
scripts	checkpatch: fix the usage of capture group ( ... )	2020-09-09 19:03:13 +02:00
security	ima: Don't ignore errors from crypto_shash_update()	2020-10-29 09:07:00 +01:00
sound	ALSA: seq: oss: Avoid mutex lock for a long-time ioctl	2020-10-29 09:07:06 +01:00
tools	perf top: Fix stdio interface input handling with glibc 2.28+	2020-10-14 09:51:11 +02:00
usr	initramfs: restore default compression behavior	2020-04-13 10:34:19 +02:00
virt	KVM: fix overflow of zero page refcount with ksm running	2020-10-01 13:12:33 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes	.gitattributes: set git diff driver for C source code files	2016-10-07 18:46:30 -07:00
.gitignore	kbuild: rpm-pkg: keep spec file until make mrproper	2018-02-13 10:19:46 +01:00
.mailmap	.mailmap: Add Maciej W. Rozycki's Imagination e-mail address	2017-11-10 12:16:15 -08:00
COPYING
CREDITS	MAINTAINERS: update TPM driver infrastructure changes	2017-11-09 17:58:40 -08:00
Kbuild	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Kconfig	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
MAINTAINERS	MAINTAINERS: Update drm/i915 bug filing URL	2020-02-28 16:36:12 +01:00
Makefile	Linux 4.14.202	2020-10-17 10:29:55 +02:00
README	README: add a new README file, pointing to the Documentation/	2016-10-24 08:12:35 -02:00

README

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

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

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.