Re: [PATCH v5 2/5] soc: qcom: geni-se: Add support to load QUP SE Firmware via Linux subsystem

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

Hi Viken,

kernel test robot noticed the following build warnings:

[auto build test WARNING on andi-shyti/i2c/i2c-host]
[also build test WARNING on tty/tty-testing tty/tty-next tty/tty-linus broonie-spi/for-next linus/master v6.16-rc3 next-20250627]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Viken-Dadhaniya/dt-bindings-qcom-se-common-Add-QUP-Peripheral-specific-properties-for-I2C-SPI-and-SERIAL-bus/20250624-175308
base:   https://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux.git i2c/i2c-host
patch link:    https://lore.kernel.org/r/20250624095102.1587580-3-viken.dadhaniya%40oss.qualcomm.com
patch subject: [PATCH v5 2/5] soc: qcom: geni-se: Add support to load QUP SE Firmware via Linux subsystem
config: alpha-randconfig-r122-20250628 (https://download.01.org/0day-ci/archive/20250628/202506281152.eY0YQpxs-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 14.3.0
reproduce: (https://download.01.org/0day-ci/archive/20250628/202506281152.eY0YQpxs-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/202506281152.eY0YQpxs-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/soc/qcom/qcom-geni-se.c:941:21: sparse: sparse: cast from restricted __le32
>> drivers/soc/qcom/qcom-geni-se.c:941:21: sparse: sparse: restricted __le32 degrades to integer

vim +941 drivers/soc/qcom/qcom-geni-se.c

   891	
   892	/**
   893	 * geni_read_elf() - Read an ELF file.
   894	 * @se: Pointer to the SE resources structure.
   895	 * @fw: Pointer to the firmware buffer.
   896	 * @pelfseg: Pointer to the SE-specific ELF header.
   897	 *
   898	 * Read the ELF file and output a pointer to the header data, which
   899	 * contains the firmware data and any other details.
   900	 *
   901	 * Return: 0 if successful, otherwise return an error value.
   902	 */
   903	static int geni_read_elf(struct geni_se *se, const struct firmware *fw, struct se_fw_hdr **pelfseg)
   904	{
   905		const struct elf32_hdr *ehdr;
   906		struct elf32_phdr *phdrs, *phdr;
   907		const struct se_fw_hdr *elfseg;
   908		const u8 *addr;
   909		int i;
   910	
   911		if (!fw || fw->size < sizeof(struct elf32_hdr))
   912			return -EINVAL;
   913	
   914		ehdr = (struct elf32_hdr *)fw->data;
   915		phdrs = (struct elf32_phdr *)(ehdr + 1);
   916	
   917		if (ehdr->e_phnum < 2)
   918			return -EINVAL;
   919	
   920		for (i = 0; i < ehdr->e_phnum; i++) {
   921			phdr = &phdrs[i];
   922	
   923			if (fw->size < phdr->p_offset + phdr->p_filesz)
   924				return -EINVAL;
   925	
   926			if (phdr->p_type != PT_LOAD || !phdr->p_memsz)
   927				continue;
   928	
   929			if (MI_PBT_PAGE_MODE_VALUE(phdr->p_flags) != MI_PBT_NON_PAGED_SEGMENT ||
   930			    MI_PBT_SEGMENT_TYPE_VALUE(phdr->p_flags) == MI_PBT_HASH_SEGMENT ||
   931			    MI_PBT_ACCESS_TYPE_VALUE(phdr->p_flags) == MI_PBT_NOTUSED_SEGMENT ||
   932			    MI_PBT_ACCESS_TYPE_VALUE(phdr->p_flags) == MI_PBT_SHARED_SEGMENT)
   933				continue;
   934	
   935			if (phdr->p_filesz < sizeof(struct se_fw_hdr))
   936				continue;
   937	
   938			addr = fw->data + phdr->p_offset;
   939			elfseg = (const struct se_fw_hdr *)addr;
   940	
 > 941			if (cpu_to_le32(elfseg->magic) != MAGIC_NUM_SE || elfseg->version != 1)
   942				continue;
   943	
   944			if (phdr->p_filesz < elfseg->fw_offset +
   945					     elfseg->fw_size_in_items * sizeof(u32) ||
   946			    phdr->p_filesz < elfseg->cfg_idx_offset +
   947					     elfseg->cfg_size_in_items * sizeof(u8) ||
   948			    phdr->p_filesz < elfseg->cfg_val_offset +
   949					     elfseg->cfg_size_in_items * sizeof(u32))
   950				continue;
   951	
   952			if (elfseg->serial_protocol != se->protocol)
   953				continue;
   954	
   955			*pelfseg = (struct se_fw_hdr *)addr;
   956			return 0;
   957		}
   958		return -EINVAL;
   959	}
   960	

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