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authorXu Kuohai <xukuohai@huawei.com>2022-10-27 06:44:58 +0300
committerAndrii Nakryiko <andrii@kernel.org>2022-10-27 23:10:32 +0300
commitb6d207999c350b19a787e48757f98198d0bf3e5b (patch)
tree42b6427b16d093c05dd8f8d56fca4c675b1c0af8 /kernel
parent96f341a4751d1939a303c5c526b2ca79ebda075f (diff)
downloadlinux-b6d207999c350b19a787e48757f98198d0bf3e5b.tar.xz
bpf: Fix a typo in comment for DFS algorithm
There is a typo in comment for DFS algorithm in bpf/verifier.c. The top element should not be popped until all its neighbors have been checked. Fix it. Fixes: 475fb78fbf48 ("bpf: verifier (add branch/goto checks)") Signed-off-by: Xu Kuohai <xukuohai@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20221027034458.2925218-1-xukuohai@huaweicloud.com
Diffstat (limited to 'kernel')
-rw-r--r--kernel/bpf/verifier.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 8f849a763b79..275c2f1f00ee 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -10670,7 +10670,7 @@ static int check_return_code(struct bpf_verifier_env *env)
* 3 let S be a stack
* 4 S.push(v)
* 5 while S is not empty
- * 6 t <- S.pop()
+ * 6 t <- S.peek()
* 7 if t is what we're looking for:
* 8 return t
* 9 for all edges e in G.adjacentEdges(t) do