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Message-ID: <202204190650.yy0x0YCl-lkp@intel.com>
Date: Tue, 19 Apr 2022 06:58:34 +0800
From: kernel test robot <lkp@...el.com>
To: Tom Rix <trix@...hat.com>, nsaenz@...nel.org,
bcm-kernel-feedback-list@...adcom.com, gregkh@...uxfoundation.org,
stefan.wahren@...e.com, gascoar@...il.com, ojaswin98@...il.com
Cc: kbuild-all@...ts.01.org, linux-rpi-kernel@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org,
linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
Tom Rix <trix@...hat.com>
Subject: Re: [PATCH] staging: vchiq_arm: change vchiq_platform_init from
global to static
Hi Tom,
I love your patch! Perhaps something to improve:
[auto build test WARNING on staging/staging-testing]
url: https://github.com/intel-lab-lkp/linux/commits/Tom-Rix/staging-vchiq_arm-change-vchiq_platform_init-from-global-to-static/20220419-004611
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git bed6d200f8ca38e1ecbdd8fb7e0564884002abd1
config: sparc-randconfig-c004-20220417 (https://download.01.org/0day-ci/archive/20220419/202204190650.yy0x0YCl-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/192ca8cdfd692f17162557c64e8d533c816eccff
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Tom-Rix/staging-vchiq_arm-change-vchiq_platform_init-from-global-to-static/20220419-004611
git checkout 192ca8cdfd692f17162557c64e8d533c816eccff
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=sparc SHELL=/bin/bash drivers/staging/vc04_services/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
In file included from include/linux/string.h:20,
from include/linux/bitmap.h:11,
from include/linux/cpumask.h:12,
from include/linux/mm_types_task.h:14,
from include/linux/mm_types.h:5,
from include/linux/buildid.h:5,
from include/linux/module.h:14,
from drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:8:
In function 'memcpy_to_page',
inlined from 'free_pagelist' at drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:434:4:
>> arch/sparc/include/asm/string.h:15:25: warning: argument 2 null where non-null expected [-Wnonnull]
15 | #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/highmem.h:353:9: note: in expansion of macro 'memcpy'
353 | memcpy(to + offset, from, len);
| ^~~~~~
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c: In function 'free_pagelist':
arch/sparc/include/asm/string.h:15:25: note: in a call to built-in function '__builtin_memcpy'
15 | #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/highmem.h:353:9: note: in expansion of macro 'memcpy'
353 | memcpy(to + offset, from, len);
| ^~~~~~
In function 'memcpy_to_page',
inlined from 'free_pagelist' at drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:441:4:
arch/sparc/include/asm/string.h:15:25: warning: '__builtin_memcpy' offset 0 is out of the bounds [0, 0] [-Warray-bounds]
15 | #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/highmem.h:353:9: note: in expansion of macro 'memcpy'
353 | memcpy(to + offset, from, len);
| ^~~~~~
vim +15 arch/sparc/include/asm/string.h
70a6fcf3283a0a Al Viro 2016-01-17 13
70a6fcf3283a0a Al Viro 2016-01-17 14 #define __HAVE_ARCH_MEMCPY
70a6fcf3283a0a Al Viro 2016-01-17 @15 #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
70a6fcf3283a0a Al Viro 2016-01-17 16
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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