From: akpm@linux-foundation.org
To: mm-commits@vger.kernel.org, anton@tuxera.com, zhengzengkai@huawei.com
Subject: + fs-ntfs-fix-set-but-not-used-variable-log_page_mask.patch added to -mm tree
Date: Tue, 08 Dec 2020 16:35:10 -0800 [thread overview]
Message-ID: <20201209003510.d4hjs%akpm@linux-foundation.org> (raw)
The patch titled
Subject: fs/ntfs: fix set but not used variable 'log_page_mask'
has been added to the -mm tree. Its filename is
fs-ntfs-fix-set-but-not-used-variable-log_page_mask.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/fs-ntfs-fix-set-but-not-used-variable-log_page_mask.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/fs-ntfs-fix-set-but-not-used-variable-log_page_mask.patch
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------------------------------------------------------
From: Zheng Zengkai <zhengzengkai@huawei.com>
Subject: fs/ntfs: fix set but not used variable 'log_page_mask'
Fixes gcc '-Wunused-but-set-variable' warning:
fs/ntfs/logfile.c: In function ntfs_check_logfile:
fs/ntfs/logfile.c:481:21:
warning: variable log_page_mask set but not used [-Wunused-but-set-variable]
Actually log_page_mask can be used to replace 'log_page_size - 1' as it is set.
Link: https://lkml.kernel.org/r/20200312041353.19877-1-zhengzengkai@huawei.com
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
Acked-by: Anton Altaparmakov <anton@tuxera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
fs/ntfs/logfile.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/ntfs/logfile.c~fs-ntfs-fix-set-but-not-used-variable-log_page_mask
+++ a/fs/ntfs/logfile.c
@@ -506,7 +506,7 @@ bool ntfs_check_logfile(struct inode *lo
* optimize log_page_size and log_page_bits into constants.
*/
log_page_bits = ntfs_ffs(log_page_size) - 1;
- size &= ~(s64)(log_page_size - 1);
+ size &= ~(s64)(log_page_mask);
/*
* Ensure the log file is big enough to store at least the two restart
* pages and the minimum number of log record pages.
_
Patches currently in -mm which might be from zhengzengkai@huawei.com are
fs-ntfs-fix-set-but-not-used-variable-log_page_mask.patch
reply other threads:[~2020-12-09 0:36 UTC|newest]
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