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

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Message-ID: <202101191126.Qp2ObbTg-lkp@intel.com>
Date:   Tue, 19 Jan 2021 11:13:42 +0800
From:   kernel test robot <lkp@...el.com>
To:     Francis Laniel <laniel_francis@...vacyrequired.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux Memory Management List <linux-mm@...ck.org>
Subject: drivers/media/dvb-frontends/rtl2832_sdr.o: warning: objtool:
 rtl2832_sdr_s_fmt_sdr_cap() falls through to next function
 rtl2832_sdr_querycap.cold()

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   1e2a199f6ccdc15cf111d68d212e2fd4ce65682e
commit: 33e56a59e64dfb68778e5da0be13f0c47dc5d445 string.h: add FORTIFY coverage for strscpy()
date:   5 weeks ago
config: x86_64-randconfig-s1-20200416 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=33e56a59e64dfb68778e5da0be13f0c47dc5d445
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 33e56a59e64dfb68778e5da0be13f0c47dc5d445
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

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

All warnings (new ones prefixed by >>):

>> drivers/media/dvb-frontends/rtl2832_sdr.o: warning: objtool: rtl2832_sdr_s_fmt_sdr_cap() falls through to next function rtl2832_sdr_querycap.cold()
   drivers/media/dvb-frontends/rtl2832_sdr.o: warning: objtool: rtl2832_sdr_try_fmt_sdr_cap() falls through to next function rtl2832_sdr_start_streaming.cold()

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

Download attachment ".config.gz" of type "application/gzip" (35418 bytes)