From 05c985436dfe81ab784251a54dd69be5b2dea98a Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 25 May 2015 18:50:01 -0700 Subject: [PATCH] net: fix inet_proto_csum_replace4() sparse errors make C=2 CF=-D__CHECK_ENDIAN__ net/core/utils.o ... net/core/utils.c:307:72: warning: incorrect type in argument 2 (different base types) net/core/utils.c:307:72: expected restricted __wsum [usertype] addend net/core/utils.c:307:72: got restricted __be32 [usertype] from net/core/utils.c:308:34: warning: incorrect type in argument 2 (different base types) net/core/utils.c:308:34: expected restricted __wsum [usertype] addend net/core/utils.c:308:34: got restricted __be32 [usertype] to net/core/utils.c:310:70: warning: incorrect type in argument 2 (different base types) net/core/utils.c:310:70: expected restricted __wsum [usertype] addend net/core/utils.c:310:70: got restricted __be32 [usertype] from net/core/utils.c:310:77: warning: incorrect type in argument 2 (different base types) net/core/utils.c:310:77: expected restricted __wsum [usertype] addend net/core/utils.c:310:77: got restricted __be32 [usertype] to net/core/utils.c:312:72: warning: incorrect type in argument 2 (different base types) net/core/utils.c:312:72: expected restricted __wsum [usertype] addend net/core/utils.c:312:72: got restricted __be32 [usertype] from net/core/utils.c:313:35: warning: incorrect type in argument 2 (different base types) net/core/utils.c:313:35: expected restricted __wsum [usertype] addend net/core/utils.c:313:35: got restricted __be32 [usertype] to Note we can use csum_replace4() helper Fixes: 58e3cac5613aa ("net: optimise inet_proto_csum_replace4()") Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/core/utils.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/net/core/utils.c b/net/core/utils.c index 7b803884c162..a7732a068043 100644 --- a/net/core/utils.c +++ b/net/core/utils.c @@ -304,13 +304,15 @@ void inet_proto_csum_replace4(__sum16 *sum, struct sk_buff *skb, __be32 from, __be32 to, int pseudohdr) { if (skb->ip_summed != CHECKSUM_PARTIAL) { - *sum = csum_fold(csum_add(csum_sub(~csum_unfold(*sum), from), - to)); + csum_replace4(sum, from, to); if (skb->ip_summed == CHECKSUM_COMPLETE && pseudohdr) - skb->csum = ~csum_add(csum_sub(~(skb->csum), from), to); + skb->csum = ~csum_add(csum_sub(~(skb->csum), + (__force __wsum)from), + (__force __wsum)to); } else if (pseudohdr) - *sum = ~csum_fold(csum_add(csum_sub(csum_unfold(*sum), from), - to)); + *sum = ~csum_fold(csum_add(csum_sub(csum_unfold(*sum), + (__force __wsum)from), + (__force __wsum)to)); } EXPORT_SYMBOL(inet_proto_csum_replace4); -- 2.20.1