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Commit b71c7aaa authored by Giuseppe CAVALLARO's avatar Giuseppe CAVALLARO Committed by David S. Miller
Browse files

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: default avatarGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c629882a

drivers/net/stmmac/enh_desc.c

+1 −1
Original line number Diff line number Diff line
@@ -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;

}

drivers/net/stmmac/norm_desc.c

+1 −16
Original line number Diff line number Diff line
@@ -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;

}