From: Nathan Chancellor <natechancellor@gmail.com>
To: Russell King <linux@armlinux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com,
Nathan Chancellor <natechancellor@gmail.com>,
Nick Desaulniers <ndesaulniers@google.com>
Subject: [PATCH] ARM: iop13xx: Simplify iop13xx_atu{e,x}_pci_status checks
Date: Mon, 17 Jun 2019 19:03:07 -0700 [thread overview]
Message-ID: <20190618020307.50917-1-natechancellor@gmail.com> (raw)
clang warns:
arch/arm/mach-iop13xx/pci.c:292:7: warning: logical not is only applied
to the left hand side of this comparison [-Wlogical-not-parentheses]
if (!iop13xx_atux_pci_status(1) == 0)
^ ~~
arch/arm/mach-iop13xx/pci.c:439:7: warning: logical not is only applied
to the left hand side of this comparison [-Wlogical-not-parentheses]
if (!iop13xx_atue_pci_status(1) == 0)
^ ~~
!func() == 0 is equivalent to func(), which clears up this warning and
makes the code more readable.
Link: https://github.com/ClangBuiltLinux/linux/issues/543
Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
---
arch/arm/mach-iop13xx/pci.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/mach-iop13xx/pci.c b/arch/arm/mach-iop13xx/pci.c
index 46ea06e906cc..94d30bc7bba1 100644
--- a/arch/arm/mach-iop13xx/pci.c
+++ b/arch/arm/mach-iop13xx/pci.c
@@ -289,7 +289,7 @@ iop13xx_atux_write_config(struct pci_bus *bus, unsigned int devfn, int where,
if (size != 4) {
val = iop13xx_atux_read(addr);
- if (!iop13xx_atux_pci_status(1) == 0)
+ if (iop13xx_atux_pci_status(1))
return PCIBIOS_SUCCESSFUL;
where = (where & 3) * 8;
@@ -436,7 +436,7 @@ iop13xx_atue_write_config(struct pci_bus *bus, unsigned int devfn, int where,
if (size != 4) {
val = iop13xx_atue_read(addr);
- if (!iop13xx_atue_pci_status(1) == 0)
+ if (iop13xx_atue_pci_status(1))
return PCIBIOS_SUCCESSFUL;
where = (where & 3) * 8;
--
2.22.0
next reply other threads:[~2019-06-18 2:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-18 2:03 Nathan Chancellor [this message]
2019-06-24 20:13 ` [PATCH] ARM: iop13xx: Simplify iop13xx_atu{e,x}_pci_status checks Nick Desaulniers
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