Re: [PATCH] libata: make static arrays const, reduces object code size

From: Tejun Heo
Date: Mon Sep 18 2017 - 23:30:07 EST


On Mon, Sep 18, 2017 at 02:31:40PM +0100, Colin King wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> Don't populate const arrayis on the stack, instead make them static.
> Makes the object code smaller by over 260 bytes:
>
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
...
> diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
> index 74407c6dd592..31a61e8e0152 100644
> --- a/fs/ocfs2/dlm/dlmrecovery.c
> +++ b/fs/ocfs2/dlm/dlmrecovery.c
> @@ -1129,7 +1129,6 @@ static int dlm_send_mig_lockres_msg(struct dlm_ctxt *dlm,
> (mres->num_locks * sizeof(struct dlm_migratable_lock));
>
> /* add an all-done flag if we reached the last lock */
> - orig_flags = mres->flags;
> BUG_ON(total_locks > mres_total_locks);
> if (total_locks == mres_total_locks)
> mres->flags |= DLM_MRES_ALL_DONE;

Looks like patch contamination.

Thanks.

--
tejun