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[Qemu-devel] [PATCH 2/5] hw/net/rtl8139.c: Don't use *_to_cpup()
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PATCH 2/5] hw/net/rtl8139.c: Don't use *_to_cpup() |
Date: |
Thu, 16 Jun 2016 18:17:23 +0100 |
Don't use *_to_cpup() to do byte-swapped loads; instead use
ld*_p() which correctly handle misaligned accesses.
Signed-off-by: Peter Maydell <address@hidden>
---
hw/net/rtl8139.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/hw/net/rtl8139.c b/hw/net/rtl8139.c
index 562c1fd..e2b140d 100644
--- a/hw/net/rtl8139.c
+++ b/hw/net/rtl8139.c
@@ -1013,8 +1013,8 @@ static ssize_t rtl8139_do_receive(NetClientState *nc,
const uint8_t *buf, size_t
uint32_t rx_space = rxdw0 & CP_RX_BUFFER_SIZE_MASK;
/* write VLAN info to descriptor variables. */
- if (s->CpCmd & CPlusRxVLAN && be16_to_cpup((uint16_t *)
- &buf[ETH_ALEN * 2]) == ETH_P_VLAN) {
+ if (s->CpCmd & CPlusRxVLAN &&
+ lduw_be_p(&buf[ETH_ALEN * 2]) == ETH_P_VLAN) {
dot1q_buf = &buf[ETH_ALEN * 2];
size -= VLAN_HLEN;
/* if too small buffer, use the tailroom added duing expansion */
@@ -1024,11 +1024,10 @@ static ssize_t rtl8139_do_receive(NetClientState *nc,
const uint8_t *buf, size_t
rxdw1 &= ~CP_RX_VLAN_TAG_MASK;
/* BE + ~le_to_cpu()~ + cpu_to_le() = BE */
- rxdw1 |= CP_RX_TAVA | le16_to_cpup((uint16_t *)
- &dot1q_buf[ETHER_TYPE_LEN]);
+ rxdw1 |= CP_RX_TAVA | lduw_le_p(&dot1q_buf[ETHER_TYPE_LEN]);
DPRINTF("C+ Rx mode : extracted vlan tag with tci: ""%u\n",
- be16_to_cpup((uint16_t *)&dot1q_buf[ETHER_TYPE_LEN]));
+ lduw_be_p(&dot1q_buf[ETHER_TYPE_LEN]));
} else {
/* reset VLAN tag flag */
rxdw1 &= ~CP_RX_TAVA;
--
1.9.1
- [Qemu-devel] [PATCH 0/5] hw/net: Don't use cpu_to_*w() and *_to_cpup(), Peter Maydell, 2016/06/16
- [Qemu-devel] [PATCH 2/5] hw/net/rtl8139.c: Don't use *_to_cpup(),
Peter Maydell <=
- [Qemu-devel] [PATCH 1/5] hw/net/eepro100.c: Don't use cpu_to_*w() and *_to_cpup(), Peter Maydell, 2016/06/16
- [Qemu-devel] [PATCH 4/5] hw/net/virtio-net.c: Don't use *_to_cpup(), Peter Maydell, 2016/06/16
- [Qemu-devel] [PATCH 3/5] hw/net/rocker: Don't use *_to_cpup(), Peter Maydell, 2016/06/16
- [Qemu-devel] [PATCH 5/5] hw/net/e1000: Don't use *_to_cpup(), Peter Maydell, 2016/06/16
- Re: [Qemu-devel] [PATCH 0/5] hw/net: Don't use cpu_to_*w() and *_to_cpup(), Richard Henderson, 2016/06/17
- Re: [Qemu-devel] [PATCH 0/5] hw/net: Don't use cpu_to_*w() and *_to_cpup(), Jason Wang, 2016/06/19
- Re: [Qemu-devel] [PATCH 0/5] hw/net: Don't use cpu_to_*w() and *_to_cpup(), Peter Maydell, 2016/06/27