cnic: 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@wanadoo.fr>
Link: https://lore.kernel.org/r/521bd2a49be5d88e493bcfb63505d3df91a1c2d2.1657052743.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/broadcom/cnic.c b/drivers/net/ethernet/broadcom/cnic.c
index f7f10cfb3476e65e3238253354d6be1d54a1cd55..e86503d97f32bffc1eb4bc52b710c2b093cf2e89 100644 (file)
--- a/drivers/net/ethernet/broadcom/cnic.c
+++ b/drivers/net/ethernet/broadcom/cnic.c
@@ -660,7 +660,7 @@ static int cnic_init_id_tbl(struct cnic_id_tbl *id_tbl, u32 size, u32 start_id,
        id_tbl->max = size;
        id_tbl->next = next;
        spin_lock_init(&id_tbl->lock);
-       id_tbl->table = kcalloc(BITS_TO_LONGS(size), sizeof(long), GFP_KERNEL);
+       id_tbl->table = bitmap_zalloc(size, GFP_KERNEL);
        if (!id_tbl->table)
                return -ENOMEM;
 
@@ -669,7 +669,7 @@ static int cnic_init_id_tbl(struct cnic_id_tbl *id_tbl, u32 size, u32 start_id,
 
 static void cnic_free_id_tbl(struct cnic_id_tbl *id_tbl)
 {
-       kfree(id_tbl->table);
+       bitmap_free(id_tbl->table);
        id_tbl->table = NULL;
 }