Subject: [PATCH v2 6/8] powerepc/book3s64/hash: drop WARN_ON in hash__remove_section_mapping

From: David Hildenbrand <[email-masked]>
Date: Wed, 11 Nov 2020 15:53:20 +0100

The single caller (arch_remove_linear_mapping()) prints a proper warning
when this function fails. No need to eventually crash the kernel - let's
drop this WARN_ON.

Suggested-by: Oscar Salvador <[email-masked]>
Cc: Michael Ellerman <[email-masked]>
Cc: Benjamin Herrenschmidt <[email-masked]>
Cc: Paul Mackerras <[email-masked]>
Cc: Rashmica Gupta <[email-masked]>
Cc: Andrew Morton <[email-masked]>
Cc: Mike Rapoport <[email-masked]>
Cc: Michal Hocko <[email-masked]>
Cc: Oscar Salvador <[email-masked]>
Cc: Wei Yang <[email-masked]>
Cc: "Aneesh Kumar K.V" <[email-masked]>
Cc: Nicholas Piggin <[email-masked]>
Signed-off-by: David Hildenbrand <[email-masked]>
---
 arch/powerpc/mm/book3s64/hash_utils.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/powerpc/mm/book3s64/hash_utils.c b/arch/powerpc/mm/book3s64/hash_utils.c
index 24702c0a92e0..d2dcb7757c68 100644
--- a/arch/powerpc/mm/book3s64/hash_utils.c
+++ b/arch/powerpc/mm/book3s64/hash_utils.c
@@ -845,7 +845,6 @@ int hash__remove_section_mapping(unsigned long start, unsigned long end)
 {
 	int rc = htab_remove_mapping(start, end, mmu_linear_psize,
 				     mmu_kernel_ssize);
-	WARN_ON(rc < 0);
 
 	if (resize_hpt_for_hotplug(memblock_phys_mem_size()) == -ENOSPC)
 		pr_warn("Hash collision while resizing HPT\n");
-- 
2.26.2