@@ -199,7 +199,7 @@ static void twd_get_clock(struct device_node *np)twd_clk=clk_get_sys("smp_twd",NULL);if(IS_ERR(twd_clk)){-pr_err("smp_twd: clock not found %d\n",(int)PTR_ERR(twd_clk));+pr_err("smp_twd: clock not found %d\n",PTR_ERR(twd_clk));return;}
--
2.20.1.windows.1
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@@ -199,7 +199,7 @@ static void twd_get_clock(struct device_node *np)twd_clk=clk_get_sys("smp_twd",NULL);if(IS_ERR(twd_clk)){-pr_err("smp_twd: clock not found %d\n",(int)PTR_ERR(twd_clk));+pr_err("smp_twd: clock not found %d\n",PTR_ERR(twd_clk));
Sorry, NAK.
This change _will_ produce a compiler warning. "%d" expects an argument
of type "int", but PTR_ERR() returns a type of "long". Sorry, but the
cast is entirely necessary.
A better solution today would be to get rid of the PTR_ERR() entirely
and use %pe, which will get us a textual description of the error when
the appropriate kernel configuration option is enabled.
Thanks.
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@@ -199,7 +199,7 @@ static void twd_get_clock(struct device_node *np)twd_clk=clk_get_sys("smp_twd",NULL);if(IS_ERR(twd_clk)){-pr_err("smp_twd: clock not found %d\n",(int)PTR_ERR(twd_clk));+pr_err("smp_twd: clock not found %d\n",PTR_ERR(twd_clk));
Sorry, NAK.
This change _will_ produce a compiler warning. "%d" expects an argument
of type "int", but PTR_ERR() returns a type of "long". Sorry, but the
cast is entirely necessary.
A better solution today would be to get rid of the PTR_ERR() entirely
and use %pe, which will get us a textual description of the error when
the appropriate kernel configuration option is enabled.
From: kernel test robot <hidden> Date: 2021-08-11 20:08:54
Hi Tang,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on xlnx/master]
[also build test WARNING on arm/for-next keystone/next soc/for-next rockchip/for-next arm64/for-next/core shawnguo/for-next clk/clk-next linus/master v5.14-rc5 next-20210811]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Tang-Bin/ARM-smp_twd-Cleanup-the-unnecessary-cast/20210811-211613
base: https://github.com/Xilinx/linux-xlnx master
config: arm-defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 10.3.0
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/d796b458f195f35962a4ca889134f542e2186b1f
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Tang-Bin/ARM-smp_twd-Cleanup-the-unnecessary-cast/20210811-211613
git checkout d796b458f195f35962a4ca889134f542e2186b1f
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=arm
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <redacted>
All warnings (new ones prefixed by >>):
In file included from include/linux/printk.h:7,
from include/linux/kernel.h:16,
from arch/arm/kernel/smp_twd.c:9:
arch/arm/kernel/smp_twd.c: In function 'twd_get_clock':
quoted
include/linux/kern_levels.h:5:18: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long int' [-Wformat=]
5 | #define KERN_SOH "\001" /* ASCII Start Of Header */
| ^~~~~~
include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
| ^~~~~~~~
include/linux/printk.h:343:9: note: in expansion of macro 'KERN_ERR'
343 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~
arch/arm/kernel/smp_twd.c:202:3: note: in expansion of macro 'pr_err'
202 | pr_err("smp_twd: clock not found %d\n", PTR_ERR(twd_clk));
| ^~~~~~
vim +5 include/linux/kern_levels.h
314ba3520e513a Joe Perches 2012-07-30 4
04d2c8c83d0e3a Joe Perches 2012-07-30 @5 #define KERN_SOH "\001" /* ASCII Start Of Header */
04d2c8c83d0e3a Joe Perches 2012-07-30 6 #define KERN_SOH_ASCII '\001'
04d2c8c83d0e3a Joe Perches 2012-07-30 7
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