RE: [linux-next:master 6932/13542] drivers/acpi/arm64/iort.c:1406:2: error: call to undeclared function 'iort_iommu_rmr_get_resv_regions'; ISO C99 and later do not support implicit function declarations

[Shameerali Kolothum Thodi <shameerali.kolothum.thodi@huawei.com>]

> -----Original Message-----
> From: kernel test robot [mailto:lkp@intel.com]
> Sent: 29 July 2022 06:29
> To: Shameerali Kolothum Thodi <shameerali.kolothum.thodi@huawei.com>
> Cc: llvm@lists.linux.dev; kbuild-all@lists.01.org; Linux Memory Management
> List <linux-mm@kvack.org>; Joerg Roedel <jroedel@suse.de>; Guohanjun
> (Hanjun Guo) <guohanjun@huawei.com>
> Subject: [linux-next:master 6932/13542] drivers/acpi/arm64/iort.c:1406:2:
> error: call to undeclared function 'iort_iommu_rmr_get_resv_regions'; ISO
> C99 and later do not support implicit function declarations
> 
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> master
> head:   7c5e07b73ff3011c9b82d4a3286a3362b951ad2b
> commit: e302eea8f49717253ac64fd45b7cc719e87fa010 [6932/13542]
> ACPI/IORT: Add a helper to retrieve RMR info directly
> config: arm64-buildonly-randconfig-r005-20220728
> (https://download.01.org/0day-ci/archive/20220729/202207291335.1sImjc
> bY-lkp@intel.com/config)
> compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project
> 8dfaecc4c24494337933aff9d9166486ca0949f1)
> 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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/
> ?id=e302eea8f49717253ac64fd45b7cc719e87fa010
>         git remote add linux-next
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
>         git fetch --no-tags linux-next master
>         git checkout e302eea8f49717253ac64fd45b7cc719e87fa010
>         # 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 drivers/acpi/
> 
> 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/acpi/arm64/iort.c:1406:2: error: call to undeclared function
> 'iort_iommu_rmr_get_resv_regions'; ISO C99 and later do not support
> implicit function declarations [-Wimplicit-function-declaration]
>            iort_iommu_rmr_get_resv_regions(iommu_fwnode, NULL,
> head);
>            ^
>    drivers/acpi/arm64/iort.c:1406:2: note: did you mean
> 'iort_iommu_get_resv_regions'?
>    drivers/acpi/arm64/iort.c:1329:6: note: 'iort_iommu_get_resv_regions'
> declared here
>    void iort_iommu_get_resv_regions(struct device *dev, struct list_head
> *head)
>         ^
>    1 error generated.

Right. This is already reported and a fix is provided by Zhijie here,

https://lore.kernel.org/linux-arm-kernel/20220726033520.47865-1-renzhijie2@huawei.com/

Thanks,
Shameer

 
> 
> vim +/iort_iommu_rmr_get_resv_regions +1406 drivers/acpi/arm64/iort.c
> 
>   1396
>   1397	/**
>   1398	 * iort_get_rmr_sids - Retrieve IORT RMR node reserved regions
> with
>   1399	 *                     associated StreamIDs information.
>   1400	 * @iommu_fwnode: fwnode associated with IOMMU
>   1401	 * @head: Resereved region list
>   1402	 */
>   1403	void iort_get_rmr_sids(struct fwnode_handle *iommu_fwnode,
>   1404			       struct list_head *head)
>   1405	{
> > 1406		iort_iommu_rmr_get_resv_regions(iommu_fwnode, NULL,
> head);
>   1407	}
>   1408	EXPORT_SYMBOL_GPL(iort_get_rmr_sids);
>   1409
> 
> --
> 0-DAY CI Kernel Test Service
> https://01.org/lkp