[PATCH 5/7] batman-adv: fix alignment for batadv_tvlv_tt_change
From: Antonio Quartulli <hidden>
Date: 2013-12-28 16:05:58
Also in:
batman
Subsystem:
batman advanced, the rest · Maintainers:
Marek Lindner, Simon Wunderlich, Antonio Quartulli, Sven Eckelmann, Linus Torvalds
Make struct batadv_tvlv_tt_change a multiple 4 bytes long to avoid padding on any architecture. Signed-off-by: Antonio Quartulli <redacted> Signed-off-by: Marek Lindner <redacted> --- net/batman-adv/packet.h | 4 ++-- net/batman-adv/translation-table.c | 6 ++++-- 2 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index 04cf27c..2dd8f24 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h@@ -484,13 +484,13 @@ struct batadv_tvlv_tt_vlan_data { * struct batadv_tvlv_tt_change - translation table diff data * @flags: status indicators concerning the non-mesh client (see * batadv_tt_client_flags) - * @reserved: reserved field + * @reserved: reserved field - useful for alignment purposes only * @addr: mac address of non-mesh client that triggered this tt change * @vid: VLAN identifier */ struct batadv_tvlv_tt_change { uint8_t flags; - uint8_t reserved; + uint8_t reserved[3]; uint8_t addr[ETH_ALEN]; __be16 vid; };
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 4add57d..ff625fe 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c@@ -333,7 +333,8 @@ static void batadv_tt_local_event(struct batadv_priv *bat_priv, return; tt_change_node->change.flags = flags; - tt_change_node->change.reserved = 0; + memset(tt_change_node->change.reserved, 0, + sizeof(tt_change_node->change.reserved)); memcpy(tt_change_node->change.addr, common->addr, ETH_ALEN); tt_change_node->change.vid = htons(common->vid);
@@ -2221,7 +2222,8 @@ static void batadv_tt_tvlv_generate(struct batadv_priv *bat_priv, ETH_ALEN); tt_change->flags = tt_common_entry->flags; tt_change->vid = htons(tt_common_entry->vid); - tt_change->reserved = 0; + memset(tt_change->reserved, 0, + sizeof(tt_change->reserved)); tt_num_entries++; tt_change++;
--
1.8.5.2