* [PATCH] xfs: remove redundant pointer lip
@ 2022-10-10 14:31 Colin Ian King
2022-10-10 15:30 ` Darrick J. Wong
0 siblings, 1 reply; 2+ messages in thread
From: Colin Ian King @ 2022-10-10 14:31 UTC (permalink / raw)
To: Darrick J . Wong, linux-xfs; +Cc: kernel-janitors, bllvm
The assignment to pointer lip is not really required, the pointer lip
is redundant and can be removed.
Cleans up clang-scan warning:
warning: Although the value stored to 'lip' is used in the enclosing
expression, the value is never actually read from 'lip'
[deadcode.DeadStores]
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
---
fs/xfs/xfs_trans_ail.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c
index 16fbf2a1144c..87db72758d1f 100644
--- a/fs/xfs/xfs_trans_ail.c
+++ b/fs/xfs/xfs_trans_ail.c
@@ -730,11 +730,10 @@ void
xfs_ail_push_all_sync(
struct xfs_ail *ailp)
{
- struct xfs_log_item *lip;
DEFINE_WAIT(wait);
spin_lock(&ailp->ail_lock);
- while ((lip = xfs_ail_max(ailp)) != NULL) {
+ while (xfs_ail_max(ailp)) {
prepare_to_wait(&ailp->ail_empty, &wait, TASK_UNINTERRUPTIBLE);
wake_up_process(ailp->ail_task);
spin_unlock(&ailp->ail_lock);
--
2.37.3
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH] xfs: remove redundant pointer lip
2022-10-10 14:31 [PATCH] xfs: remove redundant pointer lip Colin Ian King
@ 2022-10-10 15:30 ` Darrick J. Wong
0 siblings, 0 replies; 2+ messages in thread
From: Darrick J. Wong @ 2022-10-10 15:30 UTC (permalink / raw)
To: Colin Ian King; +Cc: linux-xfs, kernel-janitors, bllvm
On Mon, Oct 10, 2022 at 03:31:19PM +0100, Colin Ian King wrote:
> The assignment to pointer lip is not really required, the pointer lip
> is redundant and can be removed.
>
> Cleans up clang-scan warning:
> warning: Although the value stored to 'lip' is used in the enclosing
> expression, the value is never actually read from 'lip'
> [deadcode.DeadStores]
>
> Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
> ---
> fs/xfs/xfs_trans_ail.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c
> index 16fbf2a1144c..87db72758d1f 100644
> --- a/fs/xfs/xfs_trans_ail.c
> +++ b/fs/xfs/xfs_trans_ail.c
> @@ -730,11 +730,10 @@ void
> xfs_ail_push_all_sync(
> struct xfs_ail *ailp)
> {
> - struct xfs_log_item *lip;
> DEFINE_WAIT(wait);
>
> spin_lock(&ailp->ail_lock);
> - while ((lip = xfs_ail_max(ailp)) != NULL) {
> + while (xfs_ail_max(ailp)) {
I've a slight stylistic preference for leaving the pointer comparison
explicit here, but I agree that @lip is no longer needed.
while (xfs_ail_max(ailp) != NULL) {
With that fixed,
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
--D
> prepare_to_wait(&ailp->ail_empty, &wait, TASK_UNINTERRUPTIBLE);
> wake_up_process(ailp->ail_task);
> spin_unlock(&ailp->ail_lock);
> --
> 2.37.3
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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