Remove unneeded variables when "0" can be returned.
Generated by: scripts/coccinelle/misc/returnvar.cocci
Reported-by: Zeal Robot <[email protected]>
Signed-off-by: jing yangyang <[email protected]>
---
arch/arm/mach-omap2/dma.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/arm/mach-omap2/dma.c b/arch/arm/mach-omap2/dma.c
index dfc9b21..ba4a48e 100644
--- a/arch/arm/mach-omap2/dma.c
+++ b/arch/arm/mach-omap2/dma.c
@@ -79,7 +79,6 @@
static unsigned configure_dma_errata(void)
{
- unsigned errata = 0;
/*
* Errata applicable for OMAP2430ES1.0 and all omap2420
@@ -158,7 +157,7 @@ static unsigned configure_dma_errata(void)
if (cpu_is_omap34xx() && (omap_type() != OMAP2_DEVICE_TYPE_GP))
SET_DMA_ERRATA(DMA_ROMCODE_BUG);
- return errata;
+ return 0;
}
static const struct dma_slave_map omap24xx_sdma_dt_map[] = {
--
1.8.3.1
On Thu, Aug 19, 2021 at 07:15:18PM -0700, jing yangyang wrote:
> Remove unneeded variables when "0" can be returned.
>
> Generated by: scripts/coccinelle/misc/returnvar.cocci
>
> Reported-by: Zeal Robot <[email protected]>
> Signed-off-by: jing yangyang <[email protected]>
NAK. This is not the first time this _untested_ and _incorrect_
patch has been submitted.
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!
Hi jing,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on next-20210819]
url: https://github.com/0day-ci/linux/commits/jing-yangyang/arm-dma-fix-returnvar-cocci-warnings/20210820-101604
base: 33e65b1f975cd2814fc0ea9617250fc4c1d7a553
config: arm-defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/0day-ci/linux/commit/a5037ed7d3a617c82c996788afb1a703170eb192
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review jing-yangyang/arm-dma-fix-returnvar-cocci-warnings/20210820-101604
git checkout a5037ed7d3a617c82c996788afb1a703170eb192
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>
All errors (new ones prefixed by >>):
In file included from arch/arm/mach-omap2/dma.c:30:
arch/arm/mach-omap2/dma.c: In function 'configure_dma_errata':
>> include/linux/omap-dma.h:105:42: error: 'errata' undeclared (first use in this function)
105 | #define SET_DMA_ERRATA(id) (errata |= (id))
| ^~~~~~
arch/arm/mach-omap2/dma.c:112:17: note: in expansion of macro 'SET_DMA_ERRATA'
112 | SET_DMA_ERRATA(DMA_ERRATA_IFRAME_BUFFERING);
| ^~~~~~~~~~~~~~
include/linux/omap-dma.h:105:42: note: each undeclared identifier is reported only once for each function it appears in
105 | #define SET_DMA_ERRATA(id) (errata |= (id))
| ^~~~~~
arch/arm/mach-omap2/dma.c:112:17: note: in expansion of macro 'SET_DMA_ERRATA'
112 | SET_DMA_ERRATA(DMA_ERRATA_IFRAME_BUFFERING);
| ^~~~~~~~~~~~~~
vim +/errata +105 include/linux/omap-dma.h
45c3eb7d3a07eb Tony Lindgren 2012-11-30 102
45c3eb7d3a07eb Tony Lindgren 2012-11-30 103 /* Errata handling */
45c3eb7d3a07eb Tony Lindgren 2012-11-30 104 #define IS_DMA_ERRATA(id) (errata & (id))
45c3eb7d3a07eb Tony Lindgren 2012-11-30 @105 #define SET_DMA_ERRATA(id) (errata |= (id))
45c3eb7d3a07eb Tony Lindgren 2012-11-30 106
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]