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| author | Li Hua <hucool.lihua@huawei.com> | 2022-11-21 19:18:47 +0800 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2023-02-02 21:13:34 +0100 |
| commit | aa6d148e6d6270274e3d5a529b71c54cd329d17f (patch) | |
| tree | ae08b47db5d9730c894b5c3408742614cacf9fb0 /fs | |
| parent | 1b42b1a36fc946f0d7088425b90d491b4257ca3e (diff) | |
| download | linux-stable-aa6d148e6d6270274e3d5a529b71c54cd329d17f.tar.gz linux-stable-aa6d148e6d6270274e3d5a529b71c54cd329d17f.tar.bz2 linux-stable-aa6d148e6d6270274e3d5a529b71c54cd329d17f.zip | |
ubifs: Fix build errors as symbol undefined
With CONFIG_UBIFS_FS_AUTHENTICATION not set, the compiler can assume that
ubifs_node_check_hash() is never true and drops the call to ubifs_bad_hash().
Is CONFIG_CC_OPTIMIZE_FOR_SIZE enabled this optimization does not happen anymore.
So When CONFIG_UBIFS_FS and CONFIG_CC_OPTIMIZE_FOR_SIZE is enabled but
CONFIG_UBIFS_FS_AUTHENTICATION is not set, the build errors is as followd:
ERROR: modpost: "ubifs_bad_hash" [fs/ubifs/ubifs.ko] undefined!
Fix it by add no-op ubifs_bad_hash() for the CONFIG_UBIFS_FS_AUTHENTICATION=n case.
Fixes: 16a26b20d2af ("ubifs: authentication: Add hashes to index nodes")
Signed-off-by: Li Hua <hucool.lihua@huawei.com>
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ubifs/ubifs.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h index 478bbbb5382f..2f1f31581094 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -1623,8 +1623,13 @@ static inline int ubifs_check_hmac(const struct ubifs_info *c, return crypto_memneq(expected, got, c->hmac_desc_len); } +#ifdef CONFIG_UBIFS_FS_AUTHENTICATION void ubifs_bad_hash(const struct ubifs_info *c, const void *node, const u8 *hash, int lnum, int offs); +#else +static inline void ubifs_bad_hash(const struct ubifs_info *c, const void *node, + const u8 *hash, int lnum, int offs) {}; +#endif int __ubifs_node_check_hash(const struct ubifs_info *c, const void *buf, const u8 *expected); |