linux-kernel - [PATCH 27/36] tty: synclinkmp: Mark never checked 'readval' as __always

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Message-Id: <20201104193549.4026187-28-lee.jones@linaro.org>
Date:   Wed,  4 Nov 2020 19:35:40 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     lee.jones@...aro.org
Cc:     linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>, paulkf@...rogate.com
Subject: [PATCH 27/36] tty: synclinkmp: Mark never checked 'readval' as __always_unused

Fixes the following W=1 kernel build warning(s):

 drivers/tty/synclinkmp.c: In function ‘init_adapter’:
 drivers/tty/synclinkmp.c:5167:6: warning: variable ‘readval’ set but not used [-Wunused-but-set-variable]

Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Jiri Slaby <jirislaby@...nel.org>
Cc: paulkf@...rogate.com
Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 drivers/tty/synclinkmp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c
index 0ca738f61a35b..75f494bfdcbed 100644
--- a/drivers/tty/synclinkmp.c
+++ b/drivers/tty/synclinkmp.c
@@ -5165,7 +5165,7 @@ static bool init_adapter(SLMP_INFO *info)
 
 	/* Set BIT30 of Local Control Reg 0x50 to reset SCA */
 	volatile u32 *MiscCtrl = (u32 *)(info->lcr_base + 0x50);
-	u32 readval;
+	u32 __always_unused readval;
 
 	info->misc_ctrl_value |= BIT30;
 	*MiscCtrl = info->misc_ctrl_value;
-- 
2.25.1