Re: [PATCH V3] ext4: check hash version and filesystem casefolded consistent

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Hi Lizhi,

kernel test robot noticed the following build warnings:

https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Lizhi-Xu/ext4-check-hash-version-and-filesystem-casefolded-consistent/20240531-170046
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git dev
patch link:    https://lore.kernel.org/r/20240531085647.2918240-1-lizhi.xu%40windriver.com
patch subject: [PATCH V3] ext4: check hash version and filesystem casefolded consistent
config: i386-randconfig-141-20240601 (https://download.01.org/0day-ci/archive/20240602/202406020752.Ii2MU4KP-lkp@xxxxxxxxx/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
| Closes: https://lore.kernel.org/r/202406020752.Ii2MU4KP-lkp@xxxxxxxxx/

smatch warnings:
fs/ext4/super.c:5287 __ext4_fill_super() warn: missing error code 'err'

vim +/err +5287 fs/ext4/super.c

d4fab7b28e2f5d7 Theodore Ts'o           2023-04-27  5280  	err = ext4_block_group_meta_init(sb, silent);
d4fab7b28e2f5d7 Theodore Ts'o           2023-04-27  5281  	if (err)
0d1ee42f27d30ee Alexandre Ratchov       2006-10-11  5282  		goto failed_mount;
0b8e58a140cae2b Andreas Dilger          2009-06-03  5283  
db9345d9e6f075e Jason Yan               2023-03-23  5284  	ext4_hash_info_init(sb);
66b3f078839bbdb Lizhi Xu                2024-05-31  5285  	if (es->s_def_hash_version == DX_HASH_SIPHASH && 
66b3f078839bbdb Lizhi Xu                2024-05-31  5286  	    !ext4_has_feature_casefold(sb))
66b3f078839bbdb Lizhi Xu                2024-05-31 @5287  		goto failed_mount;


Should this be an error path?  err = something?

ac27a0ec112a089 Dave Kleikamp           2006-10-11  5288  
d4fab7b28e2f5d7 Theodore Ts'o           2023-04-27  5289  	err = ext4_handle_clustersize(sb);
d4fab7b28e2f5d7 Theodore Ts'o           2023-04-27  5290  	if (err)
281b59959707dfa Theodore Ts'o           2011-09-09  5291  		goto failed_mount;
960fd856fdc3b08 Theodore Ts'o           2013-07-05  5292  
d4fab7b28e2f5d7 Theodore Ts'o           2023-04-27  5293  	err = ext4_check_geometry(sb, es);
d4fab7b28e2f5d7 Theodore Ts'o           2023-04-27  5294  	if (err)
bfe0a5f47ada40d Theodore Ts'o           2018-06-17  5295  		goto failed_mount;
bfe0a5f47ada40d Theodore Ts'o           2018-06-17  5296  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki





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