[PATCH 4.19 1/6] net: lan78xx: Avoid unnecessary self assignment
From: Anders Roxell <hidden>
Date: 2021-12-17 14:41:37
Also in:
linux-arm-kernel, linux-input, linux-usb, lkml, netdev, stable
Subsystem:
networking drivers, the rest, usb lan78xx ethernet driver, usb networking drivers · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Thangaraj Samynathan, Rengarajan Sundararajan
From: Nathan Chancellor <redacted>
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 <redacted>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Anders Roxell <redacted>
---
drivers/net/usb/lan78xx.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index b328207c0455..f438be83d259 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c@@ -945,11 +945,9 @@ 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);
--
2.34.1