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Date: Wed, 12 Dec 2007 09:57:59 +0800 From: Herbert Xu <herbert@...dor.apana.org.au> To: "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org Subject: [PATCH 1/3] [IPSEC]: Make xfrm_lookup flags argument a bit-field [IPSEC]: Make xfrm_lookup flags argument a bit-field This patch introduces an enum for bits in the flags argument of xfrm_lookup. This is so that we can cram more information into it later. Since all current users use just the values 0 and 1, XFRM_LOOKUP_WAIT has been added with the value 1 << 0 to represent the current meaning of flags. The test in __xfrm_lookup has been changed accordingly. Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au> --- include/net/dst.h | 5 +++++ net/xfrm/xfrm_policy.c | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/include/net/dst.h b/include/net/dst.h index e86b9a0..aaa2dbb 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -265,6 +265,11 @@ static inline struct dst_entry *dst_check(struct dst_entry *dst, u32 cookie) extern void dst_init(void); +/* Flags for xfrm_lookup flags argument. */ +enum { + XFRM_LOOKUP_WAIT = 1 << 0, +}; + struct flowi; #ifndef CONFIG_XFRM static inline int xfrm_lookup(struct dst_entry **dst_p, struct flowi *fl, diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 39805b4..265c679 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -1565,7 +1565,7 @@ restart: xfrm_pol_put(policy); return -EREMOTE; } - if (err == -EAGAIN && flags) { + if (err == -EAGAIN && (flags & XFRM_LOOKUP_WAIT)) { DECLARE_WAITQUEUE(wait, current); add_wait_queue(&km_waitq, &wait); -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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