linux-kernel - [PATCH v2] staging: rtl8723bs: ignore unused wiphy

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Date:   Thu, 16 Sep 2021 23:19:58 +0000
From:   Bryan Brattlof <hello@...anbrattlof.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Bryan Brattlof <hello@...anbrattlof.com>
Subject: [PATCH v2] staging: rtl8723bs: ignore unused wiphy_wowlan object warnings

The wake-on-wlan stub is unused when the device power management
functionality is disabled in the kernel, creating a warning when
building the driver.

drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c:50:42: warning: ‘wowlan_stub’ defined but not used [-Wunused-const-variable=]

Add the __maybe_unused annotation to silence this warning.

Signed-off-by: Bryan Brattlof <hello@...anbrattlof.com>
---
Changes from v1:
 - Use the __maybe_unused annotation instead of #ifdef

 drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
index 34da8a569709..0868f56e2979 100644
--- a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
+++ b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
@@ -47,7 +47,7 @@ static const u32 rtw_cipher_suites[] = {
  * Moreover wowlan has to be enabled via a the nl80211_set_wowlan callback.
  * (from user space, e.g. iw phy0 wowlan enable)
  */
-static const struct wiphy_wowlan_support wowlan_stub = {
+static __maybe_unused const struct wiphy_wowlan_support wowlan_stub = {
 	.flags = WIPHY_WOWLAN_ANY,
 	.n_patterns = 0,
 	.pattern_max_len = 0,
--
2.30.2