git: 55fa60782f3e - stable/13 - rb_tree: resolve name clash

From: Doug Moore <dougm_at_FreeBSD.org>
Date: Mon, 22 Aug 2022 09:22:21 UTC
The branch stable/13 has been updated by dougm:

URL: https://cgit.FreeBSD.org/src/commit/?id=55fa60782f3e0f63ea572e80b269acf6ad3dc8e3

commit 55fa60782f3e0f63ea572e80b269acf6ad3dc8e3
Author:     Doug Moore <dougm@FreeBSD.org>
AuthorDate: 2022-08-02 16:47:17 +0000
Commit:     Doug Moore <dougm@FreeBSD.org>
CommitDate: 2022-08-22 09:22:04 +0000

    rb_tree: resolve name clash
    
    Rename 'tmp' to 'rb_update_tmp' in a macro to avoid a shadow variable panic.
    
    Reported by:    imb@protected-networks.net
    Fixes:  35557a0d9169
    
    (cherry picked from commit b3fd5464a903180994313bd903f3c170f5f9e1f3)
---
 sys/sys/tree.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sys/sys/tree.h b/sys/sys/tree.h
index b66fa88829b2..2baadf768340 100644
--- a/sys/sys/tree.h
+++ b/sys/sys/tree.h
@@ -372,10 +372,10 @@ struct {								\
 #endif
 
 #define RB_UPDATE_AUGMENT(elm, field) do {				\
-	__typeof(elm) tmp = (elm);					\
+		__typeof(elm) rb_update_tmp = (elm);			\
 	do {								\
-		RB_AUGMENT(tmp);					\
-	} while ((tmp = RB_PARENT(tmp, field)) != NULL);		\
+		RB_AUGMENT(rb_update_tmp);				\
+	} while ((rb_update_tmp = RB_PARENT(rb_update_tmp, field)) != NULL); \
 } while (0)
 
 #define RB_SWAP_CHILD(head, out, in, field) do {			\