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Message-ID: <202601200007.GVZIjoCx-lkp@intel.com>
Date: Tue, 20 Jan 2026 00:29:20 +0800
From: kernel test robot <lkp@...el.com>
To: Salman Nabi <salman.nabi@....com>, vvidwans@...dia.com,
andre.przywara@....com, sudeep.holla@....com, mark.rutland@....com,
lpieralisi@...nel.org
Cc: oe-kbuild-all@...ts.linux.dev, ardb@...nel.org, chao.gao@...el.com,
linux-arm-kernel@...ts.infradead.org, linux-coco@...ts.linux.dev,
linux-kernel@...r.kernel.org, sdonthineni@...dia.com,
vsethi@...dia.com, vwadekar@...dia.com
Subject: Re: [PATCH 1/1] firmware: smccc: add support for Live Firmware
Activation (LFA)
Hi Salman,
kernel test robot noticed the following build warnings:
[auto build test WARNING on soc/for-next]
[also build test WARNING on linus/master v6.19-rc6 next-20260116]
[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/Salman-Nabi/firmware-smccc-add-support-for-Live-Firmware-Activation-LFA/20260119-203221
base: https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git for-next
patch link: https://lore.kernel.org/r/20260119122729.287522-2-salman.nabi%40arm.com
patch subject: [PATCH 1/1] firmware: smccc: add support for Live Firmware Activation (LFA)
config: arm-sp7021_defconfig (https://download.01.org/0day-ci/archive/20260120/202601200007.GVZIjoCx-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260120/202601200007.GVZIjoCx-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202601200007.GVZIjoCx-lkp@intel.com/
All warnings (new ones prefixed by >>):
drivers/firmware/smccc/lfa_fw.c: In function 'get_nr_lfa_components':
drivers/firmware/smccc/lfa_fw.c:179:16: error: variable 'reg' has initializer but incomplete type
179 | struct arm_smccc_1_2_regs reg = { 0 };
| ^~~~~~~~~~~~~~~~~~
>> drivers/firmware/smccc/lfa_fw.c:179:43: warning: excess elements in struct initializer
179 | struct arm_smccc_1_2_regs reg = { 0 };
| ^
drivers/firmware/smccc/lfa_fw.c:179:43: note: (near initialization for 'reg')
drivers/firmware/smccc/lfa_fw.c:179:35: error: storage size of 'reg' isn't known
179 | struct arm_smccc_1_2_regs reg = { 0 };
| ^~~
drivers/firmware/smccc/lfa_fw.c:184:9: error: implicit declaration of function 'arm_smccc_1_2_invoke'; did you mean 'arm_smccc_1_1_invoke'? [-Wimplicit-function-declaration]
184 | arm_smccc_1_2_invoke(®, ®);
| ^~~~~~~~~~~~~~~~~~~~
| arm_smccc_1_1_invoke
>> drivers/firmware/smccc/lfa_fw.c:179:35: warning: unused variable 'reg' [-Wunused-variable]
179 | struct arm_smccc_1_2_regs reg = { 0 };
| ^~~
drivers/firmware/smccc/lfa_fw.c: In function 'lfa_cancel':
drivers/firmware/smccc/lfa_fw.c:194:16: error: variable 'reg' has initializer but incomplete type
194 | struct arm_smccc_1_2_regs reg = { 0 };
| ^~~~~~~~~~~~~~~~~~
drivers/firmware/smccc/lfa_fw.c:194:43: warning: excess elements in struct initializer
194 | struct arm_smccc_1_2_regs reg = { 0 };
| ^
drivers/firmware/smccc/lfa_fw.c:194:43: note: (near initialization for 'reg')
drivers/firmware/smccc/lfa_fw.c:194:35: error: storage size of 'reg' isn't known
194 | struct arm_smccc_1_2_regs reg = { 0 };
| ^~~
drivers/firmware/smccc/lfa_fw.c:194:35: warning: unused variable 'reg' [-Wunused-variable]
drivers/firmware/smccc/lfa_fw.c: In function 'call_lfa_activate':
drivers/firmware/smccc/lfa_fw.c:220:16: error: variable 'reg' has initializer but incomplete type
220 | struct arm_smccc_1_2_regs reg = { 0 };
| ^~~~~~~~~~~~~~~~~~
drivers/firmware/smccc/lfa_fw.c:220:43: warning: excess elements in struct initializer
220 | struct arm_smccc_1_2_regs reg = { 0 };
| ^
drivers/firmware/smccc/lfa_fw.c:220:43: note: (near initialization for 'reg')
drivers/firmware/smccc/lfa_fw.c:220:35: error: storage size of 'reg' isn't known
220 | struct arm_smccc_1_2_regs reg = { 0 };
| ^~~
drivers/firmware/smccc/lfa_fw.c:220:35: warning: unused variable 'reg' [-Wunused-variable]
drivers/firmware/smccc/lfa_fw.c: In function 'prime_fw_image':
drivers/firmware/smccc/lfa_fw.c:290:16: error: variable 'reg' has initializer but incomplete type
290 | struct arm_smccc_1_2_regs reg = { 0 };
| ^~~~~~~~~~~~~~~~~~
drivers/firmware/smccc/lfa_fw.c:290:43: warning: excess elements in struct initializer
290 | struct arm_smccc_1_2_regs reg = { 0 };
| ^
drivers/firmware/smccc/lfa_fw.c:290:43: note: (near initialization for 'reg')
drivers/firmware/smccc/lfa_fw.c:290:35: error: storage size of 'reg' isn't known
290 | struct arm_smccc_1_2_regs reg = { 0 };
| ^~~
drivers/firmware/smccc/lfa_fw.c:290:35: warning: unused variable 'reg' [-Wunused-variable]
drivers/firmware/smccc/lfa_fw.c: In function 'activation_pending_show':
drivers/firmware/smccc/lfa_fw.c:360:16: error: variable 'reg' has initializer but incomplete type
360 | struct arm_smccc_1_2_regs reg = { 0 };
| ^~~~~~~~~~~~~~~~~~
drivers/firmware/smccc/lfa_fw.c:360:43: warning: excess elements in struct initializer
360 | struct arm_smccc_1_2_regs reg = { 0 };
| ^
drivers/firmware/smccc/lfa_fw.c:360:43: note: (near initialization for 'reg')
drivers/firmware/smccc/lfa_fw.c:360:35: error: storage size of 'reg' isn't known
360 | struct arm_smccc_1_2_regs reg = { 0 };
| ^~~
drivers/firmware/smccc/lfa_fw.c:360:35: warning: unused variable 'reg' [-Wunused-variable]
drivers/firmware/smccc/lfa_fw.c: In function 'pending_version_show':
drivers/firmware/smccc/lfa_fw.c:434:16: error: variable 'reg' has initializer but incomplete type
434 | struct arm_smccc_1_2_regs reg = { 0 };
| ^~~~~~~~~~~~~~~~~~
drivers/firmware/smccc/lfa_fw.c:434:43: warning: excess elements in struct initializer
434 | struct arm_smccc_1_2_regs reg = { 0 };
| ^
drivers/firmware/smccc/lfa_fw.c:434:43: note: (near initialization for 'reg')
drivers/firmware/smccc/lfa_fw.c:434:35: error: storage size of 'reg' isn't known
434 | struct arm_smccc_1_2_regs reg = { 0 };
| ^~~
drivers/firmware/smccc/lfa_fw.c:434:35: warning: unused variable 'reg' [-Wunused-variable]
drivers/firmware/smccc/lfa_fw.c: In function 'update_fw_images_tree':
drivers/firmware/smccc/lfa_fw.c:586:16: error: variable 'reg' has initializer but incomplete type
586 | struct arm_smccc_1_2_regs reg = { 0 };
| ^~~~~~~~~~~~~~~~~~
drivers/firmware/smccc/lfa_fw.c:586:43: warning: excess elements in struct initializer
586 | struct arm_smccc_1_2_regs reg = { 0 };
| ^
drivers/firmware/smccc/lfa_fw.c:586:43: note: (near initialization for 'reg')
drivers/firmware/smccc/lfa_fw.c:586:35: error: storage size of 'reg' isn't known
586 | struct arm_smccc_1_2_regs reg = { 0 };
| ^~~
drivers/firmware/smccc/lfa_fw.c:586:35: warning: unused variable 'reg' [-Wunused-variable]
drivers/firmware/smccc/lfa_fw.c: In function 'lfa_init':
drivers/firmware/smccc/lfa_fw.c:619:16: error: variable 'reg' has initializer but incomplete type
619 | struct arm_smccc_1_2_regs reg = { 0 };
| ^~~~~~~~~~~~~~~~~~
drivers/firmware/smccc/lfa_fw.c:619:43: warning: excess elements in struct initializer
619 | struct arm_smccc_1_2_regs reg = { 0 };
| ^
drivers/firmware/smccc/lfa_fw.c:619:43: note: (near initialization for 'reg')
drivers/firmware/smccc/lfa_fw.c:619:35: error: storage size of 'reg' isn't known
619 | struct arm_smccc_1_2_regs reg = { 0 };
| ^~~
drivers/firmware/smccc/lfa_fw.c:619:35: warning: unused variable 'reg' [-Wunused-variable]
vim +179 drivers/firmware/smccc/lfa_fw.c
176
177 static unsigned long get_nr_lfa_components(void)
178 {
> 179 struct arm_smccc_1_2_regs reg = { 0 };
180
181 reg.a0 = LFA_1_0_FN_GET_INFO;
182 reg.a1 = 0; /* lfa_info_selector = 0 */
183
184 arm_smccc_1_2_invoke(®, ®);
185 if (reg.a0 != LFA_SUCCESS)
186 return reg.a0;
187
188 return reg.a1;
189 }
190
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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