From: Dan Carpenter <dan.carpenter@oracle.com>
To: kbuild@lists.01.org, Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: lkp@intel.com, kbuild-all@lists.01.org,
linux-kernel@vger.kernel.org,
Palmer Dabbelt <palmerdabbelt@google.com>
Subject: [kbuild] fs/btrfs/sysfs.c:1034:4: warning: %u in format string (no. 2) requires 'unsigned int' but the argument type is 'signed int'.
Date: Fri, 26 Mar 2021 13:09:55 +0300 [thread overview]
Message-ID: <20210326100955.GZ1667@kadam> (raw)
Hi Kefeng,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 002322402dafd846c424ffa9240a937f49b48c42
commit: ed1ed4c0da5447c5e322481ce2ef9f03336c6ffb riscv: mmiowb: Fix implicit declaration of function 'smp_processor_id'
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
vim +1034 fs/btrfs/sysfs.c
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1001 static void init_feature_attrs(void)
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1002 {
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1003 struct btrfs_feature_attr *fa;
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1004 int set, i;
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1005
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1006 BUILD_BUG_ON(ARRAY_SIZE(btrfs_unknown_feature_names) !=
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1007 ARRAY_SIZE(btrfs_feature_attrs));
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1008 BUILD_BUG_ON(ARRAY_SIZE(btrfs_unknown_feature_names[0]) !=
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1009 ARRAY_SIZE(btrfs_feature_attrs[0]));
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1010
3b02a68a636400 Jeff Mahoney 2013-11-01 1011 memset(btrfs_feature_attrs, 0, sizeof(btrfs_feature_attrs));
3b02a68a636400 Jeff Mahoney 2013-11-01 1012 memset(btrfs_unknown_feature_names, 0,
3b02a68a636400 Jeff Mahoney 2013-11-01 1013 sizeof(btrfs_unknown_feature_names));
3b02a68a636400 Jeff Mahoney 2013-11-01 1014
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1015 for (i = 0; btrfs_supported_feature_attrs[i]; i++) {
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1016 struct btrfs_feature_attr *sfa;
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1017 struct attribute *a = btrfs_supported_feature_attrs[i];
3b02a68a636400 Jeff Mahoney 2013-11-01 1018 int bit;
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1019 sfa = attr_to_btrfs_feature_attr(a);
3b02a68a636400 Jeff Mahoney 2013-11-01 1020 bit = ilog2(sfa->feature_bit);
3b02a68a636400 Jeff Mahoney 2013-11-01 1021 fa = &btrfs_feature_attrs[sfa->feature_set][bit];
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1022
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1023 fa->kobj_attr.attr.name = sfa->kobj_attr.attr.name;
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1024 }
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1025
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1026 for (set = 0; set < FEAT_MAX; set++) {
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1027 for (i = 0; i < ARRAY_SIZE(btrfs_feature_attrs[set]); i++) {
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1028 char *name = btrfs_unknown_feature_names[set][i];
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1029 fa = &btrfs_feature_attrs[set][i];
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1030
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1031 if (fa->kobj_attr.attr.name)
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1032 continue;
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1033
6c52157fa9378e Tomohiro Misono 2018-05-16 @1034 snprintf(name, BTRFS_FEATURE_NAME_MAX, "%s:%u",
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1035 btrfs_feature_set_names[set], i);
It looks like these two arguments are reversed?
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1036
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1037 fa->kobj_attr.attr.name = name;
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1038 fa->kobj_attr.attr.mode = S_IRUGO;
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1039 fa->feature_set = set;
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1040 fa->feature_bit = 1ULL << i;
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1041 }
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1042 }
79da4fa4d9dcf8 Jeff Mahoney 2013-11-01 1043 }
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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