From: Aditya Kumar Singh <aditya.kumar.singh@xxxxxxxxxxxxxxxx> The for_each_link_data() macro currently declares a local variable __sdata directly, which could lead to compiler warnings or errors when reused in the same function or within switch-case blocks due to variable redefinition or invalid scoping. To address this, restructure the macro to use an outer for-loop that runs only once, allowing safe declaration of __sdata without polluting the outer scope. This ensures compatibility with static analyzers. No functional changes; this is purely a cleanup to improve macro hygiene. Signed-off-by: Aditya Kumar Singh <aditya.kumar.singh@xxxxxxxxxxxxxxxx> Signed-off-by: Maharaja Kennadyrajan <maharaja.kennadyrajan@xxxxxxxxxxxxxxxx> --- net/mac80211/ieee80211_i.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 084e2673a27e..7c18c51966d0 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1242,7 +1242,9 @@ struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) if ((_link = rcu_dereference((___sdata)->link[___link_id]))) #define for_each_link_data(sdata, __link) \ - struct ieee80211_sub_if_data *__sdata = sdata; \ + /* outer loop just to define the variable ... */ \ + for (struct ieee80211_sub_if_data *__sdata = (sdata); __sdata; \ + __sdata = NULL /* always stop */) \ for (int __link_id = 0; \ __link_id < ARRAY_SIZE((__sdata)->link); __link_id++) \ if ((!(__sdata)->vif.valid_links || \ -- 2.17.1
