The patch titled
cxgb3: remove duplicate tests in lro
has been added to the -mm tree. Its filename is
cxgb3-remove-duplicate-tests-in-lro.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: cxgb3: remove duplicate tests in lro
From: Divy Le Ray <divy@xxxxxxxxxxx>
The generic lro code checks TCP flags/options. Remove duplicate tests
done in the driver.
Signed-off-by: Divy Le Ray <divy@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/net/cxgb3/sge.c | 35 -----------------------------------
1 file changed, 35 deletions(-)
diff -puN drivers/net/cxgb3/sge.c~cxgb3-remove-duplicate-tests-in-lro drivers/net/cxgb3/sge.c
--- a/drivers/net/cxgb3/sge.c~cxgb3-remove-duplicate-tests-in-lro
+++ a/drivers/net/cxgb3/sge.c
@@ -1937,38 +1937,6 @@ static inline int lro_frame_ok(const str
eh->h_proto == htons(ETH_P_IP) && ih->ihl == (sizeof(*ih) >> 2);
}
-#define TCP_FLAG_MASK (TCP_FLAG_CWR | TCP_FLAG_ECE | TCP_FLAG_URG |\
- TCP_FLAG_ACK | TCP_FLAG_PSH | TCP_FLAG_RST |\
- TCP_FLAG_SYN | TCP_FLAG_FIN)
-#define TSTAMP_WORD ((TCPOPT_NOP << 24) | (TCPOPT_NOP << 16) |\
- (TCPOPT_TIMESTAMP << 8) | TCPOLEN_TIMESTAMP)
-
-/**
- * lro_segment_ok - check if a TCP segment is eligible for LRO
- * @tcph: the TCP header of the packet
- *
- * Returns true if a TCP packet is eligible for LRO. This requires that
- * the packet have only the ACK flag set and no TCP options besides
- * time stamps.
- */
-static inline int lro_segment_ok(const struct tcphdr *tcph)
-{
- int optlen;
-
- if (unlikely((tcp_flag_word(tcph) & TCP_FLAG_MASK) != TCP_FLAG_ACK))
- return 0;
-
- optlen = (tcph->doff << 2) - sizeof(*tcph);
- if (optlen) {
- const u32 *opt = (const u32 *)(tcph + 1);
-
- if (optlen != TCPOLEN_TSTAMP_ALIGNED ||
- *opt != htonl(TSTAMP_WORD) || !opt[2])
- return 0;
- }
- return 1;
-}
-
static int t3_get_lro_header(void **eh, void **iph, void **tcph,
u64 *hdr_flags, void *priv)
{
@@ -1981,9 +1949,6 @@ static int t3_get_lro_header(void **eh,
*iph = (struct iphdr *)((struct ethhdr *)*eh + 1);
*tcph = (struct tcphdr *)((struct iphdr *)*iph + 1);
- if (!lro_segment_ok(*tcph))
- return -1;
-
*hdr_flags = LRO_IPV4 | LRO_TCP;
return 0;
}
_
Patches currently in -mm which might be from divy@xxxxxxxxxxx are
cxgb3-remove-duplicate-tests-in-lro.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
