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SubjectRe: [PATCH v32 11/12] LRNG - add interface for gathering of raw entropy
Hi "Stephan,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on char-misc/char-misc-testing]
[also build test WARNING on cryptodev/master crypto/master v5.9-rc1 next-20200820]
[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/Stephan-M-ller/dev-random-a-new-approach-with-full-SP800-90B-compliance/20200820-165712
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git d162219c655c8cf8003128a13840d6c1e183fb80
config: nios2-allyesconfig (attached as .config)
compiler: nios2-linux-gcc (GCC) 9.3.0
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
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nios2

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/char/lrng/lrng_testing.c:255:15: warning: initialized field overwritten [-Woverride-init]
255 | .rb_reader = 0,
| ^
drivers/char/lrng/lrng_testing.c:255:15: note: (near initialization for 'lrng_raw_hires.rb_reader')
drivers/char/lrng/lrng_testing.c:295:15: warning: initialized field overwritten [-Woverride-init]
295 | .rb_reader = 0,
| ^
drivers/char/lrng/lrng_testing.c:295:15: note: (near initialization for 'lrng_raw_jiffies.rb_reader')
drivers/char/lrng/lrng_testing.c:336:15: warning: initialized field overwritten [-Woverride-init]
336 | .rb_reader = 0,
| ^
drivers/char/lrng/lrng_testing.c:336:15: note: (near initialization for 'lrng_raw_irq.rb_reader')
drivers/char/lrng/lrng_testing.c:376:15: warning: initialized field overwritten [-Woverride-init]
376 | .rb_reader = 0,
| ^
drivers/char/lrng/lrng_testing.c:376:15: note: (near initialization for 'lrng_raw_irqflags.rb_reader')
drivers/char/lrng/lrng_testing.c:417:15: warning: initialized field overwritten [-Woverride-init]
417 | .rb_reader = 0,
| ^
drivers/char/lrng/lrng_testing.c:417:15: note: (near initialization for 'lrng_raw_retip.rb_reader')
drivers/char/lrng/lrng_testing.c:457:15: warning: initialized field overwritten [-Woverride-init]
457 | .rb_reader = 0,
| ^
drivers/char/lrng/lrng_testing.c:457:15: note: (near initialization for 'lrng_raw_array.rb_reader')
drivers/char/lrng/lrng_testing.c:497:15: warning: initialized field overwritten [-Woverride-init]
497 | .rb_reader = 0,
| ^
drivers/char/lrng/lrng_testing.c:497:15: note: (near initialization for 'lrng_irq_perf.rb_reader')

# https://github.com/0day-ci/linux/commit/89b15c614286cea77d633ade2a9045060a492149
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Stephan-M-ller/dev-random-a-new-approach-with-full-SP800-90B-compliance/20200820-165712
git checkout 89b15c614286cea77d633ade2a9045060a492149
vim +255 drivers/char/lrng/lrng_testing.c

252
253 static struct lrng_testing lrng_raw_hires = {
254 .rb_reader = 0,
> 255 .rb_reader = 0,
256 .lock = __SPIN_LOCK_UNLOCKED(lrng_raw_hires.lock),
257 .read_wait = __WAIT_QUEUE_HEAD_INITIALIZER(lrng_raw_hires.read_wait)
258 };
259

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