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authorDavid Gow <davidgow@google.com>2021-04-15 23:56:23 -0700
committerShuah Khan <skhan@linuxfoundation.org>2021-08-13 13:13:18 -0600
commitb0d4adaf3b3c4402d9c3b6186e02aa1e4f7985cd (patch)
treec1e97a559f9c54c3e33e887b23f8a774a38690fa /fs/fat/misc.c
parent2734d6c1b1a089fb593ef6a23d4b70903526fe0c (diff)
fat: Add KUnit tests for checksums and timestamps
Add some basic sanity-check tests for the fat_checksum() function and the fat_time_unix2fat() and fat_time_fat2unix() functions. These unit tests verify these functions return correct output for a number of test inputs. These tests were inspired by -- and serve a similar purpose to -- the timestamp parsing KUnit tests in ext4[1]. Note that, unlike fat_time_unix2fat, fat_time_fat2unix wasn't previously exported, so this patch exports it as well. This is required for the case where we're building the fat and fat_test as modules. Fixed minor checkpatch coding style errors and typos in commit log: Shuah Khan <skhan@linuxfoundation.org> [1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/fs/ext4/inode-test.c Signed-off-by: David Gow <davidgow@google.com> Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Reviewed-by: Brendan Higgins <brendanhiggins@google.com> Tested-by: Daniel Latypov <dlatypov@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'fs/fat/misc.c')
-rw-r--r--fs/fat/misc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/fat/misc.c b/fs/fat/misc.c
index 18a50a46b57f..91ca3c304211 100644
--- a/fs/fat/misc.c
+++ b/fs/fat/misc.c
@@ -230,6 +230,9 @@ void fat_time_fat2unix(struct msdos_sb_info *sbi, struct timespec64 *ts,
}
}
+/* Export fat_time_fat2unix() for the fat_test KUnit tests. */
+EXPORT_SYMBOL_GPL(fat_time_fat2unix);
+
/* Convert linear UNIX date to a FAT time/date pair. */
void fat_time_unix2fat(struct msdos_sb_info *sbi, struct timespec64 *ts,
__le16 *time, __le16 *date, u8 *time_cs)