linux-kernel - [PATCH] bnxt: Use the bitmap API to allocate bitmaps

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Date:   Tue,  5 Jul 2022 22:22:59 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     Michael Chan <michael.chan@...adcom.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        netdev@...r.kernel.org
Subject: [PATCH] bnxt: Use the bitmap API to allocate bitmaps

Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.

It is less verbose and it improves the semantic.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 11d35da61921..c74b2e4250ad 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -4477,7 +4477,7 @@ static void bnxt_free_ntp_fltrs(struct bnxt *bp, bool irq_reinit)
 		}
 	}
 	if (irq_reinit) {
-		kfree(bp->ntp_fltr_bmap);
+		bitmap_free(bp->ntp_fltr_bmap);
 		bp->ntp_fltr_bmap = NULL;
 	}
 	bp->ntp_fltr_count = 0;
@@ -4496,9 +4496,7 @@ static int bnxt_alloc_ntp_fltrs(struct bnxt *bp)
 		INIT_HLIST_HEAD(&bp->ntp_fltr_hash_tbl[i]);
 
 	bp->ntp_fltr_count = 0;
-	bp->ntp_fltr_bmap = kcalloc(BITS_TO_LONGS(BNXT_NTP_FLTR_MAX_FLTR),
-				    sizeof(long),
-				    GFP_KERNEL);
+	bp->ntp_fltr_bmap = bitmap_zalloc(BNXT_NTP_FLTR_MAX_FLTR, GFP_KERNEL);
 
 	if (!bp->ntp_fltr_bmap)
 		rc = -ENOMEM;
-- 
2.34.1