Re: [PATCHv7 5/5] asm-generic/io: Add logging support for MMIO accessors

From: kernel test robot
Date: Sat Jan 15 2022 - 11:34:16 EST


Hi Sai,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on next-20220115]
[cannot apply to arm64/for-next/core arnd-asm-generic/master arm-perf/for-next/perf linus/master v5.16 v5.16-rc8 v5.16-rc7 v5.16]
[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/Sai-Prakash-Ranjan/lib-rwmmio-arm64-Add-support-to-trace-register-reads-writes/20220115-211708
base: bd8d9cef2a7932e688ca267ea1adf5ea6557c777
config: nios2-defconfig (https://download.01.org/0day-ci/archive/20220116/202201160019.hrsMYj6V-lkp@xxxxxxxxx/config)
compiler: nios2-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/0day-ci/linux/commit/0757812bba83a756f73ce1a84c86ded3e276cd0f
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Sai-Prakash-Ranjan/lib-rwmmio-arm64-Add-support-to-trace-register-reads-writes/20220115-211708
git checkout 0757812bba83a756f73ce1a84c86ded3e276cd0f
# 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=nios2 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

In file included from arch/nios2/include/asm/io.h:41,
from include/linux/io.h:13,
from arch/nios2/include/asm/pgtable.h:18,
from include/linux/pgtable.h:6,
from arch/nios2/kernel/nios2_ksyms.c:11:
include/asm-generic/io.h: In function 'readb':
>> include/asm-generic/io.h:181:32: error: '_THIS_IP_' undeclared (first use in this function)
181 | log_read_mmio(8, addr, _THIS_IP_);
| ^~~~~~~~~
include/asm-generic/io.h:181:32: note: each undeclared identifier is reported only once for each function it appears in
include/asm-generic/io.h: In function 'readw':
include/asm-generic/io.h:196:33: error: '_THIS_IP_' undeclared (first use in this function)
196 | log_read_mmio(16, addr, _THIS_IP_);
| ^~~~~~~~~
include/asm-generic/io.h: In function 'readl':
include/asm-generic/io.h:211:33: error: '_THIS_IP_' undeclared (first use in this function)
211 | log_read_mmio(32, addr, _THIS_IP_);
| ^~~~~~~~~
include/asm-generic/io.h: In function 'writeb':
include/asm-generic/io.h:241:40: error: '_THIS_IP_' undeclared (first use in this function)
241 | log_write_mmio(value, 8, addr, _THIS_IP_);
| ^~~~~~~~~
include/asm-generic/io.h: In function 'writew':
include/asm-generic/io.h:253:41: error: '_THIS_IP_' undeclared (first use in this function)
253 | log_write_mmio(value, 16, addr, _THIS_IP_);
| ^~~~~~~~~
include/asm-generic/io.h: In function 'writel':
include/asm-generic/io.h:265:41: error: '_THIS_IP_' undeclared (first use in this function)
265 | log_write_mmio(value, 32, addr, _THIS_IP_);
| ^~~~~~~~~


vim +/_THIS_IP_ +181 include/asm-generic/io.h

169
170 /*
171 * {read,write}{b,w,l,q}() access little endian memory and return result in
172 * native endianness.
173 */
174
175 #ifndef readb
176 #define readb readb
177 static inline u8 readb(const volatile void __iomem *addr)
178 {
179 u8 val;
180
> 181 log_read_mmio(8, addr, _THIS_IP_);
182 __io_br();
183 val = __raw_readb(addr);
184 __io_ar(val);
185 log_post_read_mmio(val, 8, addr, _THIS_IP_);
186 return val;
187 }
188 #endif
189

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0-DAY CI Kernel Test Service, Intel Corporation
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