git: 51c8cd7e1a33 - main - arm64 pmap: Eliminate an unnecessary NULL check

From: Alan Cox <alc_at_FreeBSD.org>
Date: Wed, 04 Jun 2025 19:11:03 UTC
The branch main has been updated by alc:

URL: https://cgit.FreeBSD.org/src/commit/?id=51c8cd7e1a331af9e46076148c2b57db3474d2dd

commit 51c8cd7e1a331af9e46076148c2b57db3474d2dd
Author:     Alan Cox <alc@FreeBSD.org>
AuthorDate: 2025-06-01 17:34:00 +0000
Commit:     Alan Cox <alc@FreeBSD.org>
CommitDate: 2025-06-04 19:10:16 +0000

    arm64 pmap: Eliminate an unnecessary NULL check
    
    The return value from pmap_l1_to_l2() cannot be NULL.
---
 sys/arm64/arm64/pmap.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/sys/arm64/arm64/pmap.c b/sys/arm64/arm64/pmap.c
index 625caf6ecd7e..f8e422848e94 100644
--- a/sys/arm64/arm64/pmap.c
+++ b/sys/arm64/arm64/pmap.c
@@ -4210,9 +4210,6 @@ pmap_remove1(pmap_t pmap, vm_offset_t sva, vm_offset_t eva, bool map_delete)
 			va_next = eva;
 
 		l2 = pmap_l1_to_l2(l1, sva);
-		if (l2 == NULL)
-			continue;
-
 		l3_paddr = pmap_load(l2);
 
 		if ((l3_paddr & ATTR_DESCR_MASK) == L2_BLOCK) {