arch/arc/kernel/troubleshoot: use vma_lookup() instead of find_vma()

Use vma_lookup() to find the VMA at a specific address. As vma_lookup() will return NULL if the address is not within any VMA, the start address no longer needs to be validated. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Liam R. Howlett <[email protected]> Reviewed-by: Laurent Dufour <[email protected]> Acked-by: David Hildenbrand <[email protected]> Acked-by: Davidlohr Bueso <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
vieko · Jun 29, 2021 · b555414 · b555414
1 parent 064b266
commit b555414
Showing 1 changed file with 4 additions and 4 deletions.
diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c
@@ -83,12 +83,12 @@ static void show_faulting_vma(unsigned long address)
 	 * non-inclusive vma
 	 */
 	mmap_read_lock(active_mm);
-	vma = find_vma(active_mm, address);
+	vma = vma_lookup(active_mm, address);
 
-	/* check against the find_vma( ) behaviour which returns the next VMA
-	 * if the container VMA is not found
+	/* Lookup the vma at the address and report if the container VMA is not
+	 * found
 	 */
-	if (vma && (vma->vm_start <= address)) {
+	if (vma) {
 		char buf[ARC_PATH_MAX];
 		char *nm = "?";