Return-Path: From: Alexander Aring To: linux-wpan@vger.kernel.org Cc: kernel@pengutronix.de, marcel@holtmann.org, jukka.rissanen@linux.intel.com, hannes@stressinduktion.org, stefan@osg.samsung.com, mcr@sandelman.ca, werner@almesberger.net, linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, Alexander Aring , "David S . Miller" , Alexey Kuznetsov , James Morris , Hideaki YOSHIFUJI , Patrick McHardy Subject: [PATCH bluetooth-next 04/10] ndisc: add addr_len parameter to ndisc_opt_addr_space Date: Mon, 18 Apr 2016 12:58:22 +0200 Message-Id: <1460977108-4675-5-git-send-email-aar@pengutronix.de> In-Reply-To: <1460977108-4675-1-git-send-email-aar@pengutronix.de> References: <1460977108-4675-1-git-send-email-aar@pengutronix.de> List-ID: This patch makes the address length as argument for the ndisc_opt_addr_space function. This is necessary to handle addresses which don't use dev->addr_len as address length. Cc: David S. Miller Cc: Alexey Kuznetsov Cc: James Morris Cc: Hideaki YOSHIFUJI Cc: Patrick McHardy Signed-off-by: Alexander Aring --- include/net/ndisc.h | 8 ++++---- net/ipv6/ndisc.c | 10 +++++----- 2 files changed, 9 insertions(+), 9 deletions(-) diff --git a/include/net/ndisc.h b/include/net/ndisc.h index 2d8edaa..ef43e88 100644 --- a/include/net/ndisc.h +++ b/include/net/ndisc.h @@ -127,10 +127,10 @@ static inline int ndisc_addr_option_pad(unsigned short type) } } -static inline int ndisc_opt_addr_space(struct net_device *dev) +static inline int ndisc_opt_addr_space(struct net_device *dev, + unsigned char addr_len) { - return NDISC_OPT_SPACE(dev->addr_len + - ndisc_addr_option_pad(dev->type)); + return NDISC_OPT_SPACE(addr_len + ndisc_addr_option_pad(dev->type)); } static inline u8 *ndisc_opt_addr_data(struct nd_opt_hdr *p, @@ -139,7 +139,7 @@ static inline u8 *ndisc_opt_addr_data(struct nd_opt_hdr *p, u8 *lladdr = (u8 *)(p + 1); int lladdrlen = p->nd_opt_len << 3; int prepad = ndisc_addr_option_pad(dev->type); - if (lladdrlen != ndisc_opt_addr_space(dev)) + if (lladdrlen != ndisc_opt_addr_space(dev, dev->addr_len)) return NULL; return lladdr + prepad; } diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index c245895..69e20e3 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -154,7 +154,7 @@ static void ndisc_fill_addr_option(struct sk_buff *skb, int type, void *data) { int pad = ndisc_addr_option_pad(skb->dev->type); int data_len = skb->dev->addr_len; - int space = ndisc_opt_addr_space(skb->dev); + int space = ndisc_opt_addr_space(skb->dev, skb->dev->addr_len); u8 *opt = skb_put(skb, space); opt[0] = type; @@ -509,7 +509,7 @@ void ndisc_send_na(struct net_device *dev, const struct in6_addr *daddr, if (!dev->addr_len) inc_opt = 0; if (inc_opt) - optlen += ndisc_opt_addr_space(dev); + optlen += ndisc_opt_addr_space(dev, dev->addr_len); skb = ndisc_alloc_skb(dev, sizeof(*msg) + optlen); if (!skb) @@ -574,7 +574,7 @@ void ndisc_send_ns(struct net_device *dev, const struct in6_addr *solicit, if (ipv6_addr_any(saddr)) inc_opt = false; if (inc_opt) - optlen += ndisc_opt_addr_space(dev); + optlen += ndisc_opt_addr_space(dev, dev->addr_len); skb = ndisc_alloc_skb(dev, sizeof(*msg) + optlen); if (!skb) @@ -626,7 +626,7 @@ void ndisc_send_rs(struct net_device *dev, const struct in6_addr *saddr, } #endif if (send_sllao) - optlen += ndisc_opt_addr_space(dev); + optlen += ndisc_opt_addr_space(dev, dev->addr_len); skb = ndisc_alloc_skb(dev, sizeof(*msg) + optlen); if (!skb) @@ -1563,7 +1563,7 @@ void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target) memcpy(ha_buf, neigh->ha, dev->addr_len); read_unlock_bh(&neigh->lock); ha = ha_buf; - optlen += ndisc_opt_addr_space(dev); + optlen += ndisc_opt_addr_space(dev, dev->addr_len); } else read_unlock_bh(&neigh->lock); -- 2.8.0