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Subject[asahilinux:bits/050-nvme 8/10] drivers/soc/apple/rtkit.c:665:9: error: call to undeclared function 'mbox_client_poll_data'; ISO C99 and later do not support implicit function declarations
Hi Hector,

FYI, the error/warning still remains.

tree: https://github.com/AsahiLinux/linux bits/050-nvme
head: 5b3910635863df45900af347c932d5468e7541fc
commit: ecb1172a9cbf4c3ad18fa5c259380a116c2f00e6 [8/10] soc: apple: rtkit: Add apple_rtkit_poll
config: arm64-randconfig-r001-20220629 (https://download.01.org/0day-ci/archive/20220701/202207011600.x6cjbQ0z-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project a9119143a2d1f4d0d0bc1fe0d819e5351b4e0deb)
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
# install arm64 cross compiling tool for clang build
# apt-get install binutils-aarch64-linux-gnu
# https://github.com/AsahiLinux/linux/commit/ecb1172a9cbf4c3ad18fa5c259380a116c2f00e6
git remote add asahilinux https://github.com/AsahiLinux/linux
git fetch --no-tags asahilinux bits/050-nvme
git checkout ecb1172a9cbf4c3ad18fa5c259380a116c2f00e6
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

>> drivers/soc/apple/rtkit.c:665:9: error: call to undeclared function 'mbox_client_poll_data'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
return mbox_client_poll_data(rtk->mbox_chan);
^
drivers/soc/apple/rtkit.c:665:9: note: did you mean 'mbox_client_peek_data'?
include/linux/mailbox_client.h:46:6: note: 'mbox_client_peek_data' declared here
bool mbox_client_peek_data(struct mbox_chan *chan); /* atomic */
^
1 error generated.


vim +/mbox_client_poll_data +665 drivers/soc/apple/rtkit.c

662
663 int apple_rtkit_poll(struct apple_rtkit *rtk)
664 {
> 665 return mbox_client_poll_data(rtk->mbox_chan);
666 }
667 EXPORT_SYMBOL_GPL(apple_rtkit_poll);
668

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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