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Subjectdrivers/rtc/rtc-pcf8523.c:35: warning: "REG_OFFSET" redefined
Hi Thomas,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 61556703b610a104de324e4f061dc6cf7b218b46
commit: 7fd70c65faacd39628ba5f670be6490010c8132f ARM: irqstat: Get rid of duplicated declaration
date: 3 months ago
config: arm-randconfig-r026-20210209 (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7fd70c65faacd39628ba5f670be6490010c8132f
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 7fd70c65faacd39628ba5f670be6490010c8132f
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> drivers/rtc/rtc-pcf8523.c:35: warning: "REG_OFFSET" redefined
35 | #define REG_OFFSET 0x0e
|
In file included from arch/arm/mach-ixp4xx/include/mach/hardware.h:30,
from arch/arm/mach-ixp4xx/include/mach/io.h:15,
from arch/arm/include/asm/io.h:198,
from include/linux/io.h:13,
from include/linux/irq.h:20,
from include/asm-generic/hardirq.h:13,
from arch/arm/include/asm/hardirq.h:10,
from include/linux/hardirq.h:10,
from include/linux/interrupt.h:11,
from include/linux/rtc.h:17,
from drivers/rtc/rtc-pcf8523.c:9:
arch/arm/mach-ixp4xx/include/mach/platform.h:25: note: this is the location of the previous definition
25 | #define REG_OFFSET 3
|


vim +/REG_OFFSET +35 drivers/rtc/rtc-pcf8523.c

f803f0d079ded4 Thierry Reding 2012-12-17 34
bc3bee02527252 Russell King 2017-09-29 @35 #define REG_OFFSET 0x0e
bc3bee02527252 Russell King 2017-09-29 36 #define REG_OFFSET_MODE BIT(7)
bc3bee02527252 Russell King 2017-09-29 37

:::::: The code at line 35 was first introduced by commit
:::::: bc3bee0252725240ffa62180d387cc245179c549 rtc: pcf8523: add support for trimming the RTC oscillator

:::::: TO: Russell King <rmk+kernel@armlinux.org.uk>
:::::: CC: Alexandre Belloni <alexandre.belloni@free-electrons.com>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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