From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Date: Tue, 5 Jul 2022 21:34:08 +0200
Subject: sfc/siena: Use the bitmap API to allocate bitmaps
Patch-mainline: v6.0-rc1
Git-commit: 820aceb53c7558386e8028ca56144b25fe20b010
References: jsc#PED-1565

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>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Link: https://lore.kernel.org/r/717ba530215f4d7ce9fedcc73d98dba1f70d7f71.1657049636.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/sfc/siena/farch.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

--- a/drivers/net/ethernet/sfc/siena/farch.c
+++ b/drivers/net/ethernet/sfc/siena/farch.c
@@ -2778,7 +2778,7 @@ void efx_farch_filter_table_remove(struc
 	enum efx_farch_filter_table_id table_id;
 
 	for (table_id = 0; table_id < EFX_FARCH_FILTER_TABLE_COUNT; table_id++) {
-		kfree(state->table[table_id].used_bitmap);
+		bitmap_free(state->table[table_id].used_bitmap);
 		vfree(state->table[table_id].spec);
 	}
 	kfree(state);
@@ -2822,9 +2822,7 @@ int efx_farch_filter_table_probe(struct
 		table = &state->table[table_id];
 		if (table->size == 0)
 			continue;
-		table->used_bitmap = kcalloc(BITS_TO_LONGS(table->size),
-					     sizeof(unsigned long),
-					     GFP_KERNEL);
+		table->used_bitmap = bitmap_zalloc(table->size, GFP_KERNEL);
 		if (!table->used_bitmap)
 			goto fail;
 		table->spec = vzalloc(array_size(sizeof(*table->spec),