Messages in this thread | | | Date | Wed, 26 May 2021 12:11:22 +0800 | From | kernel test robot <> | Subject | drivers/mmc/host/sdhci-esdhc-imx.c:343:19: warning: unused function 'is_imx6q_usdhc' |
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Hi Krzysztof,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: ad9f25d338605d26acedcaf3ba5fab5ca26f1c10 commit: 54d8454436a205682bd89d66d8d9eedbc8452d15 mmc: host: Enable compile testing of multiple drivers date: 9 months ago config: mips-randconfig-r006-20210526 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 99155e913e9bad5f7f8a247f8bb3a3ff3da74af1) 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 # install mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=54d8454436a205682bd89d66d8d9eedbc8452d15 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 54d8454436a205682bd89d66d8d9eedbc8452d15 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> drivers/mmc/host/sdhci-esdhc-imx.c:343:19: warning: unused function 'is_imx6q_usdhc' static inline int is_imx6q_usdhc(struct pltfm_imx_data ^ fatal error: error in backend: Nested variants found in inline asm string: '.if ( 0x00 ) != -1)) 0x00 ) != -1)) : ($( static struct ftrace_branch_data __attribute__((__aligned__(4))) __attribute__((__section__("_ftrace_branch"))) __if_trace = $( .func = __func__, .file = "arch/mips/include/asm/barrier.h", .line = 16, $); 0x00 ) != -1)) : $))) ) && ( (1 << 0) ); .set push; .set mips64r2; .rept 1; sync 0x00; .endr; .set pop; .else; ; .endif' clang-13: error: clang frontend command failed with exit code 70 (use -v to see invocation) clang version 13.0.0 (git://gitmirror/llvm_project 99155e913e9bad5f7f8a247f8bb3a3ff3da74af1) Target: mipsel-unknown-linux-gnu Thread model: posix InstalledDir: /opt/cross/clang-99155e913e/bin clang-13: note: diagnostic msg: Makefile arch block drivers include kernel scripts source usr -- >> drivers/mmc/host/sdhci-sprd.c:134:20: warning: unused function 'sdhci_sprd_writew' static inline void sdhci_sprd_writew(struct sdhci_host u16 val, int reg) ^ fatal error: error in backend: Nested variants found in inline asm string: ' .set push .set mips64r2 .if ( 0x00 ) != -1)) 0x00 ) != -1)) : ($( static struct ftrace_branch_data __attribute__((__aligned__(4))) __attribute__((__section__("_ftrace_branch"))) __if_trace = $( .func = __func__, .file = "arch/mips/include/asm/atomic.h", .line = 153, $); 0x00 ) != -1)) : $))) ) && ( 0 ); .set push; .set mips64r2; .rept 1; sync 0x00; .endr; .set pop; .else; ; .endif 1: ll $0, $1 # atomic_add addu $0, $2 sc $0, $1 beqz $0, 1b .set pop ' clang-13: error: clang frontend command failed with exit code 70 (use -v to see invocation) clang version 13.0.0 (git://gitmirror/llvm_project 99155e913e9bad5f7f8a247f8bb3a3ff3da74af1) Target: mipsel-unknown-linux-gnu Thread model: posix InstalledDir: /opt/cross/clang-99155e913e/bin clang-13: note: diagnostic msg: Makefile arch block drivers include kernel scripts source usr
vim +/is_imx6q_usdhc +343 drivers/mmc/host/sdhci-esdhc-imx.c
57ed3314e0bfa90 Shawn Guo 2011-06-30 342 95a2482a9baaf55 Shawn Guo 2011-09-19 @343 static inline int is_imx6q_usdhc(struct pltfm_imx_data *data) 95a2482a9baaf55 Shawn Guo 2011-09-19 344 { f47c4bbfa283df2 Shawn Guo 2013-10-17 345 return data->socdata == &usdhc_imx6q_data; 95a2482a9baaf55 Shawn Guo 2011-09-19 346 } 95a2482a9baaf55 Shawn Guo 2011-09-19 347
:::::: The code at line 343 was first introduced by commit :::::: 95a2482a9baaf55a3403d2e76f2abd7c0a32298c mmc: sdhci-esdhc-imx: add basic imx6q usdhc support
:::::: TO: Shawn Guo <shawn.guo@linaro.org> :::::: CC: Chris Ball <cjb@laptop.org>
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