From 2fe4ca6ad7f6a0b98f97c498320051e5066e4b95 Mon Sep 17 00:00:00 2001
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Fri, 17 Dec 2021 22:54:12 +0100
Subject: [PATCH] powerpc/mpic: Use bitmap_zalloc() when applicable
'mpic->protected' is a bitmap. So use 'bitmap_zalloc()' to simplify
code and improve the semantic, instead of hand writing it.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/aa145f674e08044c98f13f1a985faa9cc29c3708.1639777976.git.christophe.jaillet@wanadoo.fr
---
arch/powerpc/sysdev/mpic.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 995fb2ada507a..626ba4a9f64f2 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -1323,8 +1323,7 @@ struct mpic * __init mpic_alloc(struct device_node *node,
psrc = of_get_property(mpic->node, "protected-sources", &psize);
if (psrc) {
/* Allocate a bitmap with one bit per interrupt */
- unsigned int mapsize = BITS_TO_LONGS(intvec_top + 1);
- mpic->protected = kcalloc(mapsize, sizeof(long), GFP_KERNEL);
+ mpic->protected = bitmap_zalloc(intvec_top + 1, GFP_KERNEL);
BUG_ON(mpic->protected == NULL);
for (i = 0; i < psize/sizeof(u32); i++) {
if (psrc[i] > intvec_top)
--
2.30.2