[PATCH net 1/2] net/smc: use sk_rcvbuf as start for rmb creation

Ursula Braun
2017-11-21T12:23:53Z

From: Ursula Braun <ursula.braun@de.ibm.com>

Commit 3e034725c0d8 ("net/smc: common functions for RMBs and send buffers")
merged handling of SMC receive and send buffers. It introduced sk_buf_size
as merged start value for size determination. But since sk_buf_size is not
used at all, sk_sndbuf is erroneously used as start for rmb creation.
This patch makes sure, sk_buf_size is really used as intended, and
sk_rcvbuf is used as start value for rmb creation.

Fixes: 3e034725c0d8 ("net/smc: common functions for RMBs and send buffers")
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Reviewed-by: Hans Wippel <hwippel@linux.vnet.ibm.com>
---
net/smc/smc_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index 2578fbd95664..3b5e5d4bc763 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -575,7 +575,7 @@ static int __smc_buf_create(struct smc_sock *smc, bool is_rmb)
/* use socket send buffer size (w/o overhead) as start value */
sk_buf_size = smc->sk.sk_sndbuf / 2;

- for (bufsize_short = smc_compress_bufsize(smc->sk.sk_sndbuf / 2);
+ for (bufsize_short = smc_compress_bufsize(sk_buf_size);
bufsize_short >= 0; bufsize_short--) {

if (is_rmb) {
--
2.13.5