From b71c7aaa1e2a9858f0c469026098fbd6e046d7bb Mon Sep 17 00:00:00 2001 From: Giuseppe CAVALLARO Date: Fri, 17 Sep 2010 03:23:42 +0000 Subject: stmmac: use one memset() to reset TDES01 Use one memset() to reset all TDES01 fields instead of one by one to reduce number of instructions. Signed-off-by: Giuseppe Cavallaro Signed-off-by: David S. Miller --- drivers/net/stmmac/enh_desc.c | 2 +- drivers/net/stmmac/norm_desc.c | 17 +---------------- 2 files changed, 2 insertions(+), 17 deletions(-) (limited to 'drivers/net/stmmac') diff --git a/drivers/net/stmmac/enh_desc.c b/drivers/net/stmmac/enh_desc.c index 77ff88c..5d1471d 100644 --- a/drivers/net/stmmac/enh_desc.c +++ b/drivers/net/stmmac/enh_desc.c @@ -284,7 +284,7 @@ static void enh_desc_release_tx_desc(struct dma_desc *p) { int ter = p->des01.etx.end_ring; - memset(p, 0, sizeof(struct dma_desc)); + memset(p, 0, offsetof(struct dma_desc, des2)); p->des01.etx.end_ring = ter; } diff --git a/drivers/net/stmmac/norm_desc.c b/drivers/net/stmmac/norm_desc.c index 51f4440..0dce90c 100644 --- a/drivers/net/stmmac/norm_desc.c +++ b/drivers/net/stmmac/norm_desc.c @@ -174,22 +174,7 @@ static void ndesc_release_tx_desc(struct dma_desc *p) { int ter = p->des01.tx.end_ring; - /* clean field used within the xmit */ - p->des01.tx.first_segment = 0; - p->des01.tx.last_segment = 0; - p->des01.tx.buffer1_size = 0; - - /* clean status reported */ - p->des01.tx.error_summary = 0; - p->des01.tx.underflow_error = 0; - p->des01.tx.no_carrier = 0; - p->des01.tx.loss_carrier = 0; - p->des01.tx.excessive_deferral = 0; - p->des01.tx.excessive_collisions = 0; - p->des01.tx.late_collision = 0; - p->des01.tx.heartbeat_fail = 0; - p->des01.tx.deferred = 0; - + memset(p, 0, offsetof(struct dma_desc, des2)); /* set termination field */ p->des01.tx.end_ring = ter; } -- cgit v1.1