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authorIgor V. Kovalenko <igor.v.kovalenko@gmail.com>2010-01-14 01:53:25 +0300
committerAnthony Liguori <aliguori@us.ibm.com>2010-01-19 16:31:02 -0600
commit4ef1a3d3b37080c9c523c403e32caff26fdd0aa4 (patch)
tree86b1f7ca196407dfcbed95cdbc6ed08b62140fdd
parent7b8737de0316397566c3d61de370ec7a3c24e86b (diff)
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rtl8139: fix clang reporting unused assignment of VLAN tagging data
Currently we do not implement VLAN tagging for rtl8139(C+), still data is read from ring buffer headers. - augment unused assignment with TODO item - cast txdw1 to void for now Signed-off-by: Igor V. Kovalenko <igor.v.kovalenko@gmail.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
-rw-r--r--hw/rtl8139.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/rtl8139.c b/hw/rtl8139.c
index 1f4f585..f04dd54 100644
--- a/hw/rtl8139.c
+++ b/hw/rtl8139.c
@@ -1909,6 +1909,7 @@ static int rtl8139_cplus_transmit_one(RTL8139State *s)
cpu_physical_memory_read(cplus_tx_ring_desc, (uint8_t *)&val, 4);
txdw0 = le32_to_cpu(val);
+ /* TODO: implement VLAN tagging support, VLAN tag data is read to txdw1 */
cpu_physical_memory_read(cplus_tx_ring_desc+4, (uint8_t *)&val, 4);
txdw1 = le32_to_cpu(val);
cpu_physical_memory_read(cplus_tx_ring_desc+8, (uint8_t *)&val, 4);
@@ -1920,6 +1921,9 @@ static int rtl8139_cplus_transmit_one(RTL8139State *s)
descriptor,
txdw0, txdw1, txbufLO, txbufHI));
+ /* TODO: the following discard cast should clean clang analyzer output */
+ (void)txdw1;
+
/* w0 ownership flag */
#define CP_TX_OWN (1<<31)
/* w0 end of ring flag */
@@ -2045,6 +2049,7 @@ static int rtl8139_cplus_transmit_one(RTL8139State *s)
/* update ring data */
val = cpu_to_le32(txdw0);
cpu_physical_memory_write(cplus_tx_ring_desc, (uint8_t *)&val, 4);
+ /* TODO: implement VLAN tagging support, VLAN tag data is read to txdw1 */
// val = cpu_to_le32(txdw1);
// cpu_physical_memory_write(cplus_tx_ring_desc+4, &val, 4);