Hi Huibin, [auto build test ERROR on linus/master] [also build test ERROR on v4.13-rc5 next-20170816] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Huibin-Hong/watchdog-dw_wdt-fix-overflow-issue-in-dw_wdt_top_in_seconds/20170817-033555 config: xtensa-allmodconfig (attached as .config) compiler: xtensa-linux-gcc (GCC) 4.9.0 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=xtensa All error/warnings (new ones prefixed by >>): drivers//watchdog/dw_wdt.c: In function 'dw_wdt_top_in_seconds': >> drivers//watchdog/dw_wdt.c:77:38: error: request for member 'clk' in something not a structure or union return (cycles / clk_get_rate(dw_wdt.clk)); ^ >> drivers//watchdog/dw_wdt.c:78:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ vim +/clk +77 drivers//watchdog/dw_wdt.c 68 69 static inline int dw_wdt_top_in_seconds(struct dw_wdt *dw_wdt, unsigned top) 70 { 71 /* 72 * There are 16 possible timeout values in 0..15 where the number of 73 * cycles is 2 ^ (16 + i) and the watchdog counts down. 74 */ 75 unsigned int cycles = 1 << (16 + top); 76 > 77 return (cycles / clk_get_rate(dw_wdt.clk)); > 78 } 79 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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