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SubjectRe: [PATCH] video: fbdev: pm2fb: avoid stall on fb_sync
Hi Tong,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.11 next-20210219]
[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/Tong-Zhang/video-fbdev-pm2fb-avoid-stall-on-fb_sync/20210221-070421
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git f40ddce88593482919761f74910f42f4b84c004b
config: x86_64-randconfig-a003-20210221 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project c9439ca36342fb6013187d0a69aef92736951476)
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 x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# https://github.com/0day-ci/linux/commit/77b85e0ba17f78b0335bf283901691ec3942dec3
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Tong-Zhang/video-fbdev-pm2fb-avoid-stall-on-fb_sync/20210221-070421
git checkout 77b85e0ba17f78b0335bf283901691ec3942dec3
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64

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

All errors (new ones prefixed by >>):

>> drivers/video/fbdev/pm2fb.c:193:19: error: cannot combine with previous 'int' declaration specifier
static int inline void WAIT_FIFO_TIMEOUT(struct pm2fb_par *p, u32 a)
^
1 error generated.


vim +/int +193 drivers/video/fbdev/pm2fb.c

183
184 #ifdef CONFIG_FB_PM2_FIFO_DISCONNECT
185 #define WAIT_FIFO(p, a)
186 #define WAIT_FIFO_TIMEOUT(p, a) (0)
187 #else
188 static inline void WAIT_FIFO(struct pm2fb_par *p, u32 a)
189 {
190 while (pm2_RD(p, PM2R_IN_FIFO_SPACE) < a)
191 cpu_relax();
192 }
> 193 static int inline void WAIT_FIFO_TIMEOUT(struct pm2fb_par *p, u32 a)
194 {
195 int timeout = 10000;
196 while (pm2_RD(p, PM2R_IN_FIFO_SPACE) < a) {
197 cpu_relax();
198 if (--timeout==0)
199 return 1;
200 }
201 return 0;
202 }
203 #endif
204

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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