diff mbox series

[4.14,1/6] net: lan78xx: Avoid unnecessary self assignment

Message ID 20211220122506.3631672-2-anders.roxell@linaro.org (mailing list archive)
State Not Applicable
Delegated to: Netdev Maintainers
Headers show
Series fix warning and errors on arm built with clang | expand

Checks

Context Check Description
netdev/tree_selection success Guessing tree name failed - patch did not apply

Commit Message

Anders Roxell Dec. 20, 2021, 12:25 p.m. UTC 
From: Nathan Chancellor <natechancellor@gmail.com>

commit 94e7c844990f0db92418586b107be135b4963b66 upstream.

Clang warns when a variable is assigned to itself.

drivers/net/usb/lan78xx.c:940:11: warning: explicitly assigning value of
variable of type 'u32' (aka 'unsigned int') to itself [-Wself-assign]
                        offset = offset;
                        ~~~~~~ ^ ~~~~~~
1 warning generated.

Reorder the if statement to acheive the same result and avoid a self
assignment warning.

Link: https://github.com/ClangBuiltLinux/linux/issues/129
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
---
 drivers/net/usb/lan78xx.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index 838b6fe9dfaa..e286188b6ea1 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -920,11 +920,9 @@  static int lan78xx_read_otp(struct lan78xx_net *dev, u32 offset,
 	ret = lan78xx_read_raw_otp(dev, 0, 1, &sig);
 
 	if (ret == 0) {
-		if (sig == OTP_INDICATOR_1)
-			offset = offset;
-		else if (sig == OTP_INDICATOR_2)
+		if (sig == OTP_INDICATOR_2)
 			offset += 0x100;
-		else
+		else if (sig != OTP_INDICATOR_1)
 			ret = -EINVAL;
 		if (!ret)
 			ret = lan78xx_read_raw_otp(dev, offset, length, data);