Commit 504b9121 authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller

net: tso: constify tso_count_descs() and friends

skb argument of tso_count_descs(), tso_build_hdr() and tso_build_data() can be const.
Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 185c3e58
......@@ -15,10 +15,10 @@ struct tso_t {
u32 tcp_seq;
};
int tso_count_descs(struct sk_buff *skb);
void tso_build_hdr(struct sk_buff *skb, char *hdr, struct tso_t *tso,
int tso_count_descs(const struct sk_buff *skb);
void tso_build_hdr(const struct sk_buff *skb, char *hdr, struct tso_t *tso,
int size, bool is_last);
void tso_build_data(struct sk_buff *skb, struct tso_t *tso, int size);
void tso_build_data(const struct sk_buff *skb, struct tso_t *tso, int size);
void tso_start(struct sk_buff *skb, struct tso_t *tso);
#endif /* _TSO_H */
......@@ -6,14 +6,14 @@
#include <asm/unaligned.h>
/* Calculate expected number of TX descriptors */
int tso_count_descs(struct sk_buff *skb)
int tso_count_descs(const struct sk_buff *skb)
{
/* The Marvell Way */
return skb_shinfo(skb)->gso_segs * 2 + skb_shinfo(skb)->nr_frags;
}
EXPORT_SYMBOL(tso_count_descs);
void tso_build_hdr(struct sk_buff *skb, char *hdr, struct tso_t *tso,
void tso_build_hdr(const struct sk_buff *skb, char *hdr, struct tso_t *tso,
int size, bool is_last)
{
struct tcphdr *tcph;
......@@ -44,7 +44,7 @@ void tso_build_hdr(struct sk_buff *skb, char *hdr, struct tso_t *tso,
}
EXPORT_SYMBOL(tso_build_hdr);
void tso_build_data(struct sk_buff *skb, struct tso_t *tso, int size)
void tso_build_data(const struct sk_buff *skb, struct tso_t *tso, int size)
{
tso->tcp_seq += size;
tso->size -= size;
......
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