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[PATCH v5 12/12] hw/net: sunhme: Remove the logic of padding short frame


From: Bin Meng
Subject: [PATCH v5 12/12] hw/net: sunhme: Remove the logic of padding short frames in the receive path
Date: Wed, 17 Mar 2021 14:26:38 +0800

Now that we have implemented unified short frames padding in the
QEMU networking codes, remove the same logic in the NIC codes.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

---

(no changes since v1)

 hw/net/sunhme.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/hw/net/sunhme.c b/hw/net/sunhme.c
index fc34905f87..6971796e57 100644
--- a/hw/net/sunhme.c
+++ b/hw/net/sunhme.c
@@ -714,8 +714,6 @@ static inline void sunhme_set_rx_ring_nr(SunHMEState *s, 
int i)
     s->erxregs[HME_ERXI_RING >> 2] = ring;
 }
 
-#define MIN_BUF_SIZE 60
-
 static ssize_t sunhme_receive(NetClientState *nc, const uint8_t *buf,
                               size_t size)
 {
@@ -724,7 +722,6 @@ static ssize_t sunhme_receive(NetClientState *nc, const 
uint8_t *buf,
     dma_addr_t rb, addr;
     uint32_t intstatus, status, buffer, buffersize, sum;
     uint16_t csum;
-    uint8_t buf1[60];
     int nr, cr, len, rxoffset, csum_offset;
 
     trace_sunhme_rx_incoming(size);
@@ -775,14 +772,6 @@ static ssize_t sunhme_receive(NetClientState *nc, const 
uint8_t *buf,
 
     trace_sunhme_rx_filter_accept();
 
-    /* If too small buffer, then expand it */
-    if (size < MIN_BUF_SIZE) {
-        memcpy(buf1, buf, size);
-        memset(buf1 + size, 0, MIN_BUF_SIZE - size);
-        buf = buf1;
-        size = MIN_BUF_SIZE;
-    }
-
     rb = s->erxregs[HME_ERXI_RING >> 2] & HME_ERXI_RING_ADDR;
     nr = sunhme_get_rx_ring_count(s);
     cr = sunhme_get_rx_ring_nr(s);
-- 
2.17.1




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