Re: [RFC PATCH 3/3] firmware: Add example PSA FF-A non-secure VM partition

[kbuild test robot <lkp@intel.com>]

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Hi Sudeep,

[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on next-20200529]
[cannot apply to linus/master v5.7 v5.7-rc7 v5.7-rc6 v5.7]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Sudeep-Holla/firmware-Add-support-for-PSA-FF-A-interface/20200601-174706
base:    e7b08814b16b80a0bf76eeca16317f8c2ed23b8c
config: arm64-allyesconfig (attached as .config)
compiler: aarch64-linux-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
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 

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

All warnings (new ones prefixed by >>, old ones prefixed by <<):

drivers/firmware/arm_psa_ffa/partition.c: In function 'psa_ffa_partition_probe':
>> drivers/firmware/arm_psa_ffa/partition.c:18:6: warning: variable 'vm_id' set but not used [-Wunused-but-set-variable]
18 |  u16 vm_id;
|      ^~~~~

vim +/vm_id +18 drivers/firmware/arm_psa_ffa/partition.c

    15	
    16	static int psa_ffa_partition_probe(struct platform_device *pdev)
    17	{
  > 18		u16 vm_id;
    19		uuid_t uuid;
    20		const char *uuid_str;
    21		u32 uuid0_4[4];
    22		struct device *dev = &pdev->dev;
    23		const struct device_node *np = dev->of_node;
    24		struct arm_psa_ffa_handle *handle;
    25		struct psa_ffa_partition_info **buffer;
    26	
    27		handle = arm_psa_ffa_handle_get(dev);
    28		if (!handle)
    29			return -ENODEV;
    30	
    31		if (of_property_read_string(np, "uuid", &uuid_str)) {
    32			dev_err(dev, "failed to parse \"uuid\" property in '%pOF'\n", np);
    33			return -ENODEV;
    34		}
    35	
    36		if (uuid_parse(uuid_str, &uuid)) {
    37			dev_err(dev, "invalid \"uuid\" property (%s)\n", uuid_str);
    38			return -ENODEV;
    39		}
    40	
    41		export_uuid((u8 *)uuid0_4, &uuid);
    42	
    43		vm_id = handle->id_get();
    44	
    45		handle->partition_info_get(uuid0_4[0], uuid0_4[1], uuid0_4[2],
    46					   uuid0_4[3], buffer);
    47	
    48		return 0;
    49	}
    50	

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

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