FAILED: patch "[PATCH] powerpc/kasan: Fix kasan_remap_early_shadow_ro()" failed to apply to 5.5-stable tree

The patch below does not apply to the 5.5-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From af92bad615be75c6c0d1b1c5b48178360250a187 Mon Sep 17 00:00:00 2001
From: Christophe Leroy <[email protected]>
Date: Fri, 6 Mar 2020 15:09:40 +0000
Subject: [PATCH] powerpc/kasan: Fix kasan_remap_early_shadow_ro()

At the moment kasan_remap_early_shadow_ro() does nothing, because k_end is 0 and k_cur < 0 is always true.

Change the test to k_cur != k_end, as done in
kasan_init_shadow_page_tables()

index f19526e7d3dc..1a29cf469903 100644
@@ -101,7 +101,7 @@ static void __init kasan_remap_early_shadow_ro(void)
 
 	kasan_populate_pte(kasan_early_shadow_pte, prot);
 
-	for (k_cur = k_start & PAGE_MASK; k_cur < k_end; k_cur += PAGE_SIZE) {
+	for (k_cur = k_start & PAGE_MASK; k_cur != k_end; k_cur += PAGE_SIZE) {
 		pmd_t *pmd = pmd_ptr_k(k_cur);
 		pte_t *ptep = pte_offset_kernel(pmd, k_cur);