Re: [PATCH 2/5] firmware: arm_scmi: imx: Add i.MX95 CPU Protocol

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

Hi Peng,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 0907e7fb35756464aa34c35d6abb02998418164b]

url:    https://github.com/intel-lab-lkp/linux/commits/Peng-Fan-OSS/firmware-arm_scmi-imx-Add-i-MX95-LMM-protocol/20250121-231254
base:   0907e7fb35756464aa34c35d6abb02998418164b
patch link:    https://lore.kernel.org/r/20250121-imx-lmm-cpu-v1-2-0eab7e073e4e%40nxp.com
patch subject: [PATCH 2/5] firmware: arm_scmi: imx: Add i.MX95 CPU Protocol
config: arm64-randconfig-r122-20250124 (https://download.01.org/0day-ci/archive/20250124/202501241148.0CI9mBP5-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 14.2.0
reproduce: (https://download.01.org/0day-ci/archive/20250124/202501241148.0CI9mBP5-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202501241148.0CI9mBP5-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/firmware/arm_scmi/vendors/imx/imx-sm-cpu.c:139:19: sparse: sparse: incorrect type in assignment (different base types) @@     expected restricted __le32 [usertype] flags @@     got unsigned long @@
   drivers/firmware/arm_scmi/vendors/imx/imx-sm-cpu.c:139:19: sparse:     expected restricted __le32 [usertype] flags
   drivers/firmware/arm_scmi/vendors/imx/imx-sm-cpu.c:139:19: sparse:     got unsigned long
>> drivers/firmware/arm_scmi/vendors/imx/imx-sm-cpu.c:140:19: sparse: sparse: invalid assignment: |=
   drivers/firmware/arm_scmi/vendors/imx/imx-sm-cpu.c:140:19: sparse:    left side has type restricted __le32
   drivers/firmware/arm_scmi/vendors/imx/imx-sm-cpu.c:140:19: sparse:    right side has type unsigned long
   drivers/firmware/arm_scmi/vendors/imx/imx-sm-cpu.c:141:19: sparse: sparse: invalid assignment: |=
   drivers/firmware/arm_scmi/vendors/imx/imx-sm-cpu.c:141:19: sparse:    left side has type restricted __le32
   drivers/firmware/arm_scmi/vendors/imx/imx-sm-cpu.c:141:19: sparse:    right side has type unsigned long
>> drivers/firmware/arm_scmi/vendors/imx/imx-sm-cpu.c:173:25: sparse: sparse: restricted __le32 degrades to integer
   drivers/firmware/arm_scmi/vendors/imx/imx-sm-cpu.c:205:32: sparse: sparse: restricted __le32 degrades to integer

vim +139 drivers/firmware/arm_scmi/vendors/imx/imx-sm-cpu.c

   119	
   120	static int scmi_imx_cpu_reset_vector_set(const struct scmi_protocol_handle *ph,
   121						 u32 cpuid, u64 vector, bool start,
   122						 bool boot, bool resume)
   123	{
   124		struct scmi_imx_cpu_reset_vector_set_in *in;
   125		struct scmi_xfer *t;
   126		int ret;
   127	
   128		ret = scmi_imx_cpu_validate_cpuid(ph, cpuid);
   129		if (ret)
   130			return ret;
   131	
   132		ret = ph->xops->xfer_get_init(ph, SCMI_IMX_CPU_RESET_VECTOR_SET, sizeof(*in),
   133					      0, &t);
   134		if (ret)
   135			return ret;
   136	
   137		in = t->tx.buf;
   138		in->cpuid = cpu_to_le32(cpuid);
 > 139		in->flags = start ? CPU_VEC_FLAGS_START : 0;
 > 140		in->flags |= boot ? CPU_VEC_FLAGS_BOOT : 0;
   141		in->flags |= resume ? CPU_VEC_FLAGS_BOOT : 0;
   142		in->resetvectorlow = cpu_to_le32(lower_32_bits(vector));
   143		in->resetvectorhigh = cpu_to_le32(upper_32_bits(vector));
   144		ret = ph->xops->do_xfer(ph, t);
   145	
   146		ph->xops->xfer_put(ph, t);
   147	
   148		return ret;
   149	}
   150	
   151	static int scmi_imx_cpu_started(const struct scmi_protocol_handle *ph, u32 cpuid,
   152					bool *started)
   153	{
   154		struct scmi_imx_cpu_info_get_out *out;
   155		struct scmi_xfer *t;
   156		int ret;
   157	
   158		*started = false;
   159		ret = scmi_imx_cpu_validate_cpuid(ph, cpuid);
   160		if (ret)
   161			return ret;
   162	
   163		ret = ph->xops->xfer_get_init(ph, SCMI_IMX_CPU_INFO_GET, sizeof(u32),
   164					      0, &t);
   165		if (ret)
   166			return ret;
   167	
   168		put_unaligned_le32(cpuid, t->tx.buf);
   169		ret = ph->xops->do_xfer(ph, t);
   170		if (!ret) {
   171			out = t->rx.buf;
   172			if ((out->runmode == CPU_RUN_MODE_START) ||
 > 173			    (out->runmode == CPU_RUN_MODE_SLEEP))
   174				*started = true;
   175		}
   176	
   177		ph->xops->xfer_put(ph, t);
   178	
   179		return ret;
   180	}
   181	

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