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 <ndesaulni...@google.com> Signed-off-by: Nathan Chancellor <natechancel...@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