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Date: Mon, 1 Nov 2021 02:12:03 +0800
From: kernel test robot <lkp@...el.com>
To: quanyang.wang@...driver.com, Russell King <linux@...linux.org.uk>,
Linus Walleij <linus.walleij@...aro.org>,
Thomas Gleixner <tglx@...utronix.de>,
Ard Biesheuvel <ardb@...nel.org>
Cc: kbuild-all@...ts.01.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org,
Quanyang Wang <quanyang.wang@...driver.com>
Subject: Re: [PATCH] ARM: add BUILD_BUG_ON to check if fixmap range spans
multiple pmds
Hi,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on arm/for-next]
[also build test ERROR on xilinx-xlnx/master soc/for-next rockchip/for-next arm64/for-next/core shawnguo/for-next clk/clk-next kvmarm/next linus/master keystone/next v5.15-rc7 next-20211029]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/quanyang-wang-windriver-com/ARM-add-BUILD_BUG_ON-to-check-if-fixmap-range-spans-multiple-pmds/20211020-135145
base: git://git.armlinux.org.uk/~rmk/linux-arm.git for-next
config: arm-defconfig (attached as .config)
compiler: arm-linux-gnueabi-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/0day-ci/linux/commit/54649c5c19414a00a548a13dd596037c5e50a241
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review quanyang-wang-windriver-com/ARM-add-BUILD_BUG_ON-to-check-if-fixmap-range-spans-multiple-pmds/20211020-135145
git checkout 54649c5c19414a00a548a13dd596037c5e50a241
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
arch/arm/mm/mmu.c:118:13: warning: no previous prototype for 'init_default_cache_policy' [-Wmissing-prototypes]
118 | void __init init_default_cache_policy(unsigned long pmd)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mm/mmu.c:1158:13: warning: no previous prototype for 'adjust_lowmem_bounds' [-Wmissing-prototypes]
1158 | void __init adjust_lowmem_bounds(void)
| ^~~~~~~~~~~~~~~~~~~~
arch/arm/mm/mmu.c:1724:13: warning: no previous prototype for 'paging_init' [-Wmissing-prototypes]
1724 | void __init paging_init(const struct machine_desc *mdesc)
| ^~~~~~~~~~~
arch/arm/mm/mmu.c:1757:13: warning: no previous prototype for 'early_mm_init' [-Wmissing-prototypes]
1757 | void __init early_mm_init(const struct machine_desc *mdesc)
| ^~~~~~~~~~~~~
In file included from <command-line>:
arch/arm/mm/mmu.c: In function 'early_fixmap_init':
>> include/linux/compiler_types.h:322:45: error: call to '__compiletime_assert_295' declared with attribute error: BUILD_BUG_ON failed: (__fix_to_virt(__end_of_fixmap_region) >> PMD_SHIFT) != FIXADDR_TOP >> PMD_SHIFT
322 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^
include/linux/compiler_types.h:303:25: note: in definition of macro '__compiletime_assert'
303 | prefix ## suffix(); \
| ^~~~~~
include/linux/compiler_types.h:322:9: note: in expansion of macro '_compiletime_assert'
322 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
| ^~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
50 | BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
| ^~~~~~~~~~~~~~~~
arch/arm/mm/mmu.c:372:9: note: in expansion of macro 'BUILD_BUG_ON'
372 | BUILD_BUG_ON((__fix_to_virt(__end_of_fixmap_region) >> PMD_SHIFT)
| ^~~~~~~~~~~~
vim +/__compiletime_assert_295 +322 include/linux/compiler_types.h
eb5c2d4b45e3d2 Will Deacon 2020-07-21 308
eb5c2d4b45e3d2 Will Deacon 2020-07-21 309 #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 310 __compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21 311
eb5c2d4b45e3d2 Will Deacon 2020-07-21 312 /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21 313 * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21 314 * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21 315 * @msg: a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21 316 *
eb5c2d4b45e3d2 Will Deacon 2020-07-21 317 * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21 318 * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21 319 * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21 320 */
eb5c2d4b45e3d2 Will Deacon 2020-07-21 321 #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @322 _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21 323
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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