linux-kernel - [PATCH] powerpc/mpic: Use bitmap

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Message-Id: <c323cce0ce286d41f4bf2d316c0e4cce0f4abfa8.1639776929.git.christophe.jaillet@wanadoo.fr>
Date:   Fri, 17 Dec 2021 22:37:13 +0100
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     vneethv@...ux.ibm.com, oberpar@...ux.ibm.com, hca@...ux.ibm.com,
        gor@...ux.ibm.com, borntraeger@...ux.ibm.com,
        agordeev@...ux.ibm.com
Cc:     linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
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@...adoo.fr>
---
 drivers/s390/cio/idset.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/s390/cio/idset.c b/drivers/s390/cio/idset.c
index 45f9c0736be4..7e5550230c0f 100644
--- a/drivers/s390/cio/idset.c
+++ b/drivers/s390/cio/idset.c
@@ -25,11 +25,10 @@ static struct idset *idset_new(int num_ssid, int num_id)
 {
 	struct idset *set;
 
-	set = vmalloc(sizeof(struct idset) + bitmap_size(num_ssid, num_id));
+	set = vzalloc(sizeof(struct idset) + bitmap_size(num_ssid, num_id));
 	if (set) {
 		set->num_ssid = num_ssid;
 		set->num_id = num_id;
-		memset(set->bitmap, 0, bitmap_size(num_ssid, num_id));
 	}
 	return set;
 }
-- 
2.30.2