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wifi: cfg80211: use IEEE80211_MAX_MESH_ID_LEN appropriately

Message ID 20240214200843.dc7298f78375.Iba0b6907957abfc4c157005c70ec455e7573cc85@changeid (mailing list archive)
State Accepted
Delegated to: Johannes Berg
Headers show
Series wifi: cfg80211: use IEEE80211_MAX_MESH_ID_LEN appropriately | expand

Commit Message

Johannes Berg Feb. 14, 2024, 7:08 p.m. UTC 
From: Johannes Berg <johannes.berg@intel.com>

Even if that's the same as IEEE80211_MAX_SSID_LEN, we really
should just use IEEE80211_MAX_MESH_ID_LEN for mesh, rather
than having the BUILD_BUG_ON()s.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 include/net/cfg80211.h | 2 +-
 net/wireless/nl80211.c | 4 ----
 2 files changed, 1 insertion(+), 5 deletions(-)
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Patch

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 2b54fdd8ca15..39481e7b9e14 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -6204,7 +6204,7 @@  struct wireless_dev {
 			int beacon_interval;
 			struct cfg80211_chan_def preset_chandef;
 			struct cfg80211_chan_def chandef;
-			u8 id[IEEE80211_MAX_SSID_LEN];
+			u8 id[IEEE80211_MAX_MESH_ID_LEN];
 			u8 id_len, id_up_len;
 		} mesh;
 		struct {
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index bd54a928bab4..5655981e0bff 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -4202,8 +4202,6 @@  static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
 		if (netif_running(dev))
 			return -EBUSY;
 
-		BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
-			     IEEE80211_MAX_MESH_ID_LEN);
 		wdev->u.mesh.id_up_len =
 			nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
 		memcpy(wdev->u.mesh.id,
@@ -4309,8 +4307,6 @@  static int _nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
 	case NL80211_IFTYPE_MESH_POINT:
 		if (!info->attrs[NL80211_ATTR_MESH_ID])
 			break;
-		BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
-			     IEEE80211_MAX_MESH_ID_LEN);
 		wdev->u.mesh.id_up_len =
 			nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
 		memcpy(wdev->u.mesh.id,