tunnels: do not assume mac header is set in skb_tunnel_check_pmtu()

[mirror_ubuntu-jammy-kernel.git] / mm / highmem.c

diff --git a/mm/highmem.c b/mm/highmem.c
index 1f0c8a52fd80723d0fde087982fa363d716b4055..4f942678e9da22cbe532a631d33a6c796fe5f4e2 100644 (file)
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -627,7 +627,7 @@ void __kmap_local_sched_out(void)
 
                /* With debug all even slots are unmapped and act as guard */
                if (IS_ENABLED(CONFIG_DEBUG_KMAP_LOCAL) && !(i & 0x01)) {
-                       WARN_ON_ONCE(!pte_none(pteval));
+                       WARN_ON_ONCE(pte_val(pteval) != 0);
                        continue;
                }
                if (WARN_ON_ONCE(pte_none(pteval)))
@@ -664,7 +664,7 @@ void __kmap_local_sched_in(void)
 
                /* With debug all even slots are unmapped and act as guard */
                if (IS_ENABLED(CONFIG_DEBUG_KMAP_LOCAL) && !(i & 0x01)) {
-                       WARN_ON_ONCE(!pte_none(pteval));
+                       WARN_ON_ONCE(pte_val(pteval) != 0);
                        continue;
                }
                if (WARN_ON_ONCE(pte_none(pteval)))