linux-kernel - [PATCH 46/57] staging: rtl8723bs: hal: sdio_ops: Mark used 'err' as __maybe

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Message-Id: <20210414181129.1628598-47-lee.jones@linaro.org>
Date:   Wed, 14 Apr 2021 19:11:18 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     lee.jones@...aro.org
Cc:     linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Fabio Aiuto <fabioaiuto83@...il.com>,
        linux-staging@...ts.linux.dev
Subject: [PATCH 46/57] staging: rtl8723bs: hal: sdio_ops: Mark used 'err' as __maybe_unused and remove another

'err' is only used if debug is enabled.

Also remove 4 year old TODO.

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

 drivers/staging/rtl8723bs/hal/sdio_ops.c: In function ‘sdio_read32’:
 drivers/staging/rtl8723bs/hal/sdio_ops.c:170:6: warning: variable ‘err’ set but not used [-Wunused-but-set-variable]
 drivers/staging/rtl8723bs/hal/sdio_ops.c: In function ‘sdio_read_mem’:
 drivers/staging/rtl8723bs/hal/sdio_ops.c:381:6: warning: variable ‘err’ set but not used [-Wunused-but-set-variable]

Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Fabio Aiuto <fabioaiuto83@...il.com>
Cc: linux-staging@...ts.linux.dev
Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 drivers/staging/rtl8723bs/hal/sdio_ops.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/rtl8723bs/hal/sdio_ops.c b/drivers/staging/rtl8723bs/hal/sdio_ops.c
index 701f1abbd0f07..51d72262d11e4 100644
--- a/drivers/staging/rtl8723bs/hal/sdio_ops.c
+++ b/drivers/staging/rtl8723bs/hal/sdio_ops.c
@@ -160,7 +160,7 @@ static u32 sdio_read32(struct intf_hdl *intfhdl, u32 addr)
 	u32 ftaddr;
 	u8 shift;
 	u32 val;
-	s32 err;
+	s32 __maybe_unused err;
 	__le32 le_tmp;
 
 	adapter = intfhdl->padapter;
@@ -360,10 +360,7 @@ static void sdio_read_mem(
 	u8 *rmem
 )
 {
-	s32 err;
-
-	err = sdio_readN(intfhdl, addr, cnt, rmem);
-	/* TODO: Report error is err not zero */
+	sdio_readN(intfhdl, addr, cnt, rmem);
 }
 
 static void sdio_write_mem(
-- 
2.27.0