[PATCH] RDMA/irdma: Use the bitmap API to allocate bitmaps

[Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>]

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@xxxxxxxxxx>
---
 drivers/infiniband/hw/irdma/hw.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/infiniband/hw/irdma/hw.c b/drivers/infiniband/hw/irdma/hw.c
index dd3943d22dc6..675b138e8ef0 100644
--- a/drivers/infiniband/hw/irdma/hw.c
+++ b/drivers/infiniband/hw/irdma/hw.c
@@ -1543,7 +1543,7 @@ static void irdma_del_init_mem(struct irdma_pci_f *rf)
 			  rf->obj_mem.pa);
 	rf->obj_mem.va = NULL;
 	if (rf->rdma_ver != IRDMA_GEN_1) {
-		kfree(rf->allocated_ws_nodes);
+		bitmap_free(rf->allocated_ws_nodes);
 		rf->allocated_ws_nodes = NULL;
 	}
 	kfree(rf->ceqlist);
@@ -1972,9 +1972,8 @@ u32 irdma_initialize_hw_rsrc(struct irdma_pci_f *rf)
 	u32 ret;
 
 	if (rf->rdma_ver != IRDMA_GEN_1) {
-		rf->allocated_ws_nodes =
-			kcalloc(BITS_TO_LONGS(IRDMA_MAX_WS_NODES),
-				sizeof(unsigned long), GFP_KERNEL);
+		rf->allocated_ws_nodes = bitmap_zalloc(IRDMA_MAX_WS_NODES,
+						       GFP_KERNEL);
 		if (!rf->allocated_ws_nodes)
 			return -ENOMEM;
 
@@ -2023,7 +2022,7 @@ u32 irdma_initialize_hw_rsrc(struct irdma_pci_f *rf)
 	return 0;
 
 mem_rsrc_kzalloc_fail:
-	kfree(rf->allocated_ws_nodes);
+	bitmap_free(rf->allocated_ws_nodes);
 	rf->allocated_ws_nodes = NULL;
 
 	return ret;
-- 
2.34.1