From cd8bae85815416d19f46e3828d457442f77de292 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 11 Sep 2023 16:16:18 +0300 Subject: [PATCH] wwan: core: Use the bitmap API to allocate bitmaps Use bitmap_zalloc() and bitmap_free() instead of hand-writing them. It is less verbose and it improves the type checking and semantic. While at it, add missing header inclusion (should be bitops.h, but with the above change it becomes bitmap.h). Reviewed-by: Loic Poulain Reviewed-by: Sergey Ryazanov Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20230911131618.4159437-1-andriy.shevchenko@linux.intel.com Signed-off-by: Paolo Abeni --- drivers/net/wwan/wwan_core.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/wwan/wwan_core.c b/drivers/net/wwan/wwan_core.c index 284ab1f56391a..87df60916960a 100644 --- a/drivers/net/wwan/wwan_core.c +++ b/drivers/net/wwan/wwan_core.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0-only /* Copyright (c) 2021, Linaro Ltd */ +#include #include #include #include @@ -395,7 +396,7 @@ static int __wwan_port_dev_assign_name(struct wwan_port *port, const char *fmt) char buf[0x20]; int id; - idmap = (unsigned long *)get_zeroed_page(GFP_KERNEL); + idmap = bitmap_zalloc(max_ports, GFP_KERNEL); if (!idmap) return -ENOMEM; @@ -414,7 +415,7 @@ static int __wwan_port_dev_assign_name(struct wwan_port *port, const char *fmt) /* Allocate unique id */ id = find_first_zero_bit(idmap, max_ports); - free_page((unsigned long)idmap); + bitmap_free(idmap); snprintf(buf, sizeof(buf), fmt, id); /* Name generation */ -- 2.30.2