[ardb:efi-panic 11/11] drivers/firmware/efi/libstub/efi-stub-helper.c:826:54: warning: more '%' conversions than data arguments

[ardb:efi-panic 11/11] drivers/firmware/efi/libstub/efi-stub-helper.c:826:54: warning: more '%' conversions than data arguments

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git efi-panic
head:   26122a1889cbac101c0fabcddf161a87db4ba38c
commit: 26122a1889cbac101c0fabcddf161a87db4ba38c [11/11] efi/libstub: Implement efi_panic()
config: loongarch-defconfig (https://download.01.org/0day-ci/archive/20260924/202609242143.wxkynTQV-lkp@intel.com/config)
compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 6e714c8d91116794cb699cdf80c26afe9cda3ef3)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260924/202609242143.wxkynTQV-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/202609242143.wxkynTQV-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/firmware/efi/libstub/efi-stub-helper.c:826:54: warning: more '%' conversions than data arguments [-Wformat-insufficient-args]
     826 |                 efi_warn("Found panic report from previous boot (%lu bytes)\n");
         |                                                                  ~~^
   drivers/firmware/efi/libstub/efistub.h:77:38: note: expanded from macro 'efi_warn'
      77 |         efi_printk(KERN_WARNING "WARNING: " fmt, ##__VA_ARGS__)
         |                                             ^~~
>> drivers/firmware/efi/libstub/efi-stub-helper.c:838:49: warning: format specifies type 'double' but the argument has type 'const char *' [-Wformat]
     838 |                         efi_err("%a(): Failed to allocate memory\n", __func__);
         |                                  ~~                                  ^~~~~~~~
         |                                  %s
   drivers/firmware/efi/libstub/efistub.h:79:39: note: expanded from macro 'efi_err'
      79 |         efi_printk(KERN_ERR "ERROR: " fmt, ##__VA_ARGS__)
         |                                       ~~~    ^~~~~~~~~~~
   drivers/firmware/efi/libstub/efi-stub-helper.c:841:3: error: use of undeclared identifier 'messsage'; did you mean 'message'?
     841 |                 messsage = p;
         |                 ^~~~~~~~
         |                 message
   drivers/firmware/efi/libstub/efi-stub-helper.c:811:22: note: 'message' declared here
     811 |         const efi_char16_t *message;
         |                             ^
   drivers/firmware/efi/libstub/efi-stub-helper.c:809:6: warning: no previous prototype for function 'efi_check_panic' [-Wmissing-prototypes]
     809 | void efi_check_panic(void)
         |      ^
   drivers/firmware/efi/libstub/efi-stub-helper.c:809:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
     809 | void efi_check_panic(void)
         | ^
         | static 
   3 warnings and 1 error generated.


vim +826 drivers/firmware/efi/libstub/efi-stub-helper.c

   808	
   809	void efi_check_panic(void)
   810	{
   811		const efi_char16_t *message;
   812		void *p;
   813	
   814		p = get_efi_config_table(capsule_header.guid);
   815	
   816		if (p) {
   817			message = p + sizeof(efi_capsule_header_t);
   818		} else {
   819			unsigned long size = 0;
   820			efi_status_t status;
   821	
   822			get_efi_var(panic_reason, &capsule_header.guid, NULL, &size, NULL);
   823			if (!size)
   824				return;
   825	
 > 826			efi_warn("Found panic report from previous boot (%lu bytes)\n");
   827	
   828			status = efi_bs_call(allocate_pool, EFI_LOADER_DATA, size, &p);
   829			if (status == EFI_SUCCESS)
   830				get_efi_var(panic_reason, &capsule_header.guid, NULL, &size, p);
   831	
   832			/* clear the reason even on allocation failure */
   833			set_efi_var(panic_reason, &capsule_header.guid,
   834				    EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_NON_VOLATILE,
   835				    0, NULL);
   836	
   837			if (status != EFI_SUCCESS) {
 > 838				efi_err("%a(): Failed to allocate memory\n", __func__);

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