firmware: arm_scmi: Use the bitmap API to allocate bitmaps

Use devm_bitmap_zalloc() instead of hand-writing them.

It is less verbose and it improves the semantic.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Tested-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/c073b1607ada34d5bde6ce1009179cf15bbf0da3.1657308593.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c
index 15a4316..dbc474f 100644 (file)
--- a/drivers/firmware/arm_scmi/driver.c
+++ b/drivers/firmware/arm_scmi/driver.c
@@ -2221,8 +2221,8 @@ static int __scmi_xfer_info_init(struct scmi_info *sinfo,
        hash_init(info->pending_xfers);
 
        /* Allocate a bitmask sized to hold MSG_TOKEN_MAX tokens */
-       info->xfer_alloc_table = devm_kcalloc(dev, BITS_TO_LONGS(MSG_TOKEN_MAX),
-                                             sizeof(long), GFP_KERNEL);
+       info->xfer_alloc_table = devm_bitmap_zalloc(dev, MSG_TOKEN_MAX,
+                                                   GFP_KERNEL);
        if (!info->xfer_alloc_table)
                return -ENOMEM;