drivers/media/dvb-frontends/rtl2832_sdr.o: warning: objtool: rtl2832_sdr_s_fmt_sdr_cap() falls through to next function rtl2832_sdr_set_adc.cold()

From: kernel test robot
Date: Thu Aug 12 2021 - 08:54:59 EST


Hi Hans,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 1746f4db513563bb22e0ba0c419d0c90912dfae1
commit: b2cd0b31ed896c1a6a423019ed3633e890a7f997 media: rtl2832_sdr/vivid/airspy/hackrf/msi2500: drop memset of fmt.sdr.reserved
date: 3 months ago
config: x86_64-buildonly-randconfig-r003-20210812 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b2cd0b31ed896c1a6a423019ed3633e890a7f997
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout b2cd0b31ed896c1a6a423019ed3633e890a7f997
# save the attached .config to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/media/

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

All warnings (new ones prefixed by >>):

drivers/media/dvb-frontends/rtl2832_sdr.o: warning: objtool: rtl2832_sdr_try_fmt_sdr_cap() falls through to next function rtl2832_sdr_s_fmt_sdr_cap.cold()
>> drivers/media/dvb-frontends/rtl2832_sdr.o: warning: objtool: rtl2832_sdr_s_fmt_sdr_cap() falls through to next function rtl2832_sdr_set_adc.cold()

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Attachment: .config.gz
Description: application/gzip