[colyli-bcache:nvdimm-meta 2/16] drivers/md/bcache/nvmpg_format.h:132:19: warning: 'bch_nvmpg_recs_magic' defined but not used

From: kernel test robot
Date: Tue Aug 16 2022 - 04:18:09 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/colyli/linux-bcache.git nvdimm-meta
head: b3a2634cd2ac86de5e7ac607104db6866b1b9f6b
commit: 08ce6a36470047a30ac9db26714a566280adddde [2/16] bcache: initialize the nvm pages allocator
config: i386-randconfig-a003-20220815 (https://download.01.org/0day-ci/archive/20220816/202208161410.TIsjGMiZ-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.3.0-5) 11.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/colyli/linux-bcache.git/commit/?id=08ce6a36470047a30ac9db26714a566280adddde
git remote add colyli-bcache https://git.kernel.org/pub/scm/linux/kernel/git/colyli/linux-bcache.git
git fetch --no-tags colyli-bcache nvdimm-meta
git checkout 08ce6a36470047a30ac9db26714a566280adddde
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/md/

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

All warnings (new ones prefixed by >>):

In file included from drivers/md/bcache/nvmpg.h:8,
from drivers/md/bcache/super.c:17:
>> drivers/md/bcache/nvmpg_format.h:132:19: warning: 'bch_nvmpg_recs_magic' defined but not used [-Wunused-const-variable=]
132 | static const __u8 bch_nvmpg_recs_magic[] = {
| ^~~~~~~~~~~~~~~~~~~~
>> drivers/md/bcache/nvmpg_format.h:129:19: warning: 'bch_nvmpg_magic' defined but not used [-Wunused-const-variable=]
129 | static const __u8 bch_nvmpg_magic[] = {
| ^~~~~~~~~~~~~~~


vim +/bch_nvmpg_recs_magic +132 drivers/md/bcache/nvmpg_format.h

e9147021c67818 Coly Li 2021-07-26 128
e9147021c67818 Coly Li 2021-07-26 @129 static const __u8 bch_nvmpg_magic[] = {
e9147021c67818 Coly Li 2021-07-26 130 0x17, 0xbd, 0x53, 0x7f, 0x1b, 0x23, 0xd6, 0x83,
e9147021c67818 Coly Li 2021-07-26 131 0x46, 0xa4, 0xf8, 0x28, 0x17, 0xda, 0xec, 0xa9 };
e9147021c67818 Coly Li 2021-07-26 @132 static const __u8 bch_nvmpg_recs_magic[] = {
e9147021c67818 Coly Li 2021-07-26 133 0x39, 0x25, 0x3f, 0xf7, 0x27, 0x17, 0xd0, 0xb9,
e9147021c67818 Coly Li 2021-07-26 134 0x10, 0xe6, 0xd2, 0xda, 0x38, 0x68, 0x26, 0xae };
e9147021c67818 Coly Li 2021-07-26 135

:::::: The code at line 132 was first introduced by commit
:::::: e9147021c678184512de1776d163b5a994a209a3 bcache: add initial data structures for nvm pages

:::::: TO: Coly Li <colyli@xxxxxxx>
:::::: CC: Coly Li <colyli@xxxxxxx>

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