ata/sata_fsl: remove unneeded on-stack copy of FIS

Remove unneeded on-stack copy of FIS
in sata_fsl_cache_taskfile_from_d2h_fis().

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index e3bf9546fd08c60631772e79f23edfd1129e03cf..c47f2d4bf86039498cba79f15f48c38446b03c26 100644 (file)
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -561,7 +561,6 @@ static inline void sata_fsl_cache_taskfile_from_d2h_fis(struct ata_queued_cmd
                                                        struct ata_port *ap)
 {
        struct sata_fsl_port_priv *pp = ap->private_data;
-       u8 fis[6 * 4];
        struct sata_fsl_host_priv *host_priv = ap->host->private_data;
        void __iomem *hcr_base = host_priv->hcr_base;
        unsigned int tag = sata_fsl_tag(qc->tag, hcr_base);
@@ -569,8 +568,7 @@ static inline void sata_fsl_cache_taskfile_from_d2h_fis(struct ata_queued_cmd
 
        cd = pp->cmdentry + tag;
 
-       memcpy(fis, &cd->sfis, 6 * 4);  /* should we use memcpy_from_io() */
-       ata_tf_from_fis(fis, &pp->tf);
+       ata_tf_from_fis(cd->sfis, &pp->tf);
 }
 
 static u8 sata_fsl_check_status(struct ata_port *ap)