* [linux-next:master 3959/4951] drivers/firmware/arm_scmi/transports/smc.c:235:3: error: write to reserved register 'R7'
@ 2024-08-15 23:46 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-08-15 23:46 UTC (permalink / raw)
To: Cristian Marussi
Cc: llvm, oe-kbuild-all, Linux Memory Management List, Sudeep Holla
Hi Cristian,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: edd1ec2e3a9f5de7fb267a3af73e4f00e7e052b7
commit: d4ae39de300c808cf4ed38f56fc266ba3caf0507 [3959/4951] firmware: arm_scmi: Make SMC transport a standalone driver
config: arm-randconfig-002-20240816 (https://download.01.org/0day-ci/archive/20240816/202408160737.MRlXwG46-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project f86594788ce93b696675c94f54016d27a6c21d18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240816/202408160737.MRlXwG46-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/202408160737.MRlXwG46-lkp@intel.com/
All errors (new ones prefixed by >>):
>> drivers/firmware/arm_scmi/transports/smc.c:235:3: error: write to reserved register 'R7'
235 | arm_smccc_1_1_invoke(scmi_info->func_id, scmi_info->cap_id, 0,
| ^
include/linux/arm-smccc.h:570:4: note: expanded from macro 'arm_smccc_1_1_invoke'
570 | arm_smccc_1_1_smc(__VA_ARGS__); \
| ^
include/linux/arm-smccc.h:513:48: note: expanded from macro 'arm_smccc_1_1_smc'
513 | #define arm_smccc_1_1_smc(...) __arm_smccc_1_1(SMCCC_SMC_INST, __VA_ARGS__)
| ^
include/linux/arm-smccc.h:400:24: note: expanded from macro 'SMCCC_SMC_INST'
400 | #define SMCCC_SMC_INST __SMC(0)
| ^
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
arch/arm/include/asm/opcodes.h:215:2: note: expanded from macro '__inst_arm_thumb32'
215 | __inst_thumb32(thumb_opcode)
| ^
arch/arm/include/asm/opcodes.h:205:27: note: expanded from macro '__inst_thumb32'
205 | #define __inst_thumb32(x) ___inst_thumb32( \
| ^
arch/arm/include/asm/opcodes.h:230:2: note: expanded from macro '___inst_thumb32'
230 | ".short " __stringify(first) ", " __stringify(second) "\n\t"
| ^
>> drivers/firmware/arm_scmi/transports/smc.c:235:3: error: write to reserved register 'R7'
include/linux/arm-smccc.h:567:4: note: expanded from macro 'arm_smccc_1_1_invoke'
567 | arm_smccc_1_1_hvc(__VA_ARGS__); \
| ^
include/linux/arm-smccc.h:529:48: note: expanded from macro 'arm_smccc_1_1_hvc'
529 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__)
| ^
include/linux/arm-smccc.h:401:24: note: expanded from macro 'SMCCC_HVC_INST'
401 | #define SMCCC_HVC_INST __HVC(0)
| ^
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
arch/arm/include/asm/opcodes.h:215:2: note: expanded from macro '__inst_arm_thumb32'
215 | __inst_thumb32(thumb_opcode)
| ^
arch/arm/include/asm/opcodes.h:205:27: note: expanded from macro '__inst_thumb32'
205 | #define __inst_thumb32(x) ___inst_thumb32( \
| ^
arch/arm/include/asm/opcodes.h:230:2: note: expanded from macro '___inst_thumb32'
230 | ".short " __stringify(first) ", " __stringify(second) "\n\t"
| ^
>> drivers/firmware/arm_scmi/transports/smc.c:235:3: error: write to reserved register 'R7'
include/linux/arm-smccc.h:573:4: note: expanded from macro 'arm_smccc_1_1_invoke'
573 | __fail_smccc_1_1(__VA_ARGS__); \
| ^
include/linux/arm-smccc.h:540:8: note: expanded from macro '__fail_smccc_1_1'
540 | asm ("" : \
| ^
drivers/firmware/arm_scmi/transports/smc.c:238:3: error: write to reserved register 'R7'
238 | arm_smccc_1_1_invoke(scmi_info->func_id, scmi_info->param_page,
| ^
include/linux/arm-smccc.h:570:4: note: expanded from macro 'arm_smccc_1_1_invoke'
570 | arm_smccc_1_1_smc(__VA_ARGS__); \
| ^
include/linux/arm-smccc.h:513:48: note: expanded from macro 'arm_smccc_1_1_smc'
513 | #define arm_smccc_1_1_smc(...) __arm_smccc_1_1(SMCCC_SMC_INST, __VA_ARGS__)
| ^
include/linux/arm-smccc.h:400:24: note: expanded from macro 'SMCCC_SMC_INST'
400 | #define SMCCC_SMC_INST __SMC(0)
| ^
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
arch/arm/include/asm/opcodes.h:215:2: note: expanded from macro '__inst_arm_thumb32'
215 | __inst_thumb32(thumb_opcode)
| ^
arch/arm/include/asm/opcodes.h:205:27: note: expanded from macro '__inst_thumb32'
205 | #define __inst_thumb32(x) ___inst_thumb32( \
| ^
arch/arm/include/asm/opcodes.h:230:2: note: expanded from macro '___inst_thumb32'
230 | ".short " __stringify(first) ", " __stringify(second) "\n\t"
| ^
drivers/firmware/arm_scmi/transports/smc.c:238:3: error: write to reserved register 'R7'
include/linux/arm-smccc.h:567:4: note: expanded from macro 'arm_smccc_1_1_invoke'
567 | arm_smccc_1_1_hvc(__VA_ARGS__); \
| ^
include/linux/arm-smccc.h:529:48: note: expanded from macro 'arm_smccc_1_1_hvc'
529 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__)
| ^
include/linux/arm-smccc.h:401:24: note: expanded from macro 'SMCCC_HVC_INST'
401 | #define SMCCC_HVC_INST __HVC(0)
| ^
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
arch/arm/include/asm/opcodes.h:215:2: note: expanded from macro '__inst_arm_thumb32'
215 | __inst_thumb32(thumb_opcode)
| ^
arch/arm/include/asm/opcodes.h:205:27: note: expanded from macro '__inst_thumb32'
205 | #define __inst_thumb32(x) ___inst_thumb32( \
| ^
arch/arm/include/asm/opcodes.h:230:2: note: expanded from macro '___inst_thumb32'
230 | ".short " __stringify(first) ", " __stringify(second) "\n\t"
| ^
drivers/firmware/arm_scmi/transports/smc.c:238:3: error: write to reserved register 'R7'
include/linux/arm-smccc.h:573:4: note: expanded from macro 'arm_smccc_1_1_invoke'
573 | __fail_smccc_1_1(__VA_ARGS__); \
| ^
include/linux/arm-smccc.h:540:8: note: expanded from macro '__fail_smccc_1_1'
540 | asm ("" : \
| ^
6 errors generated.
vim +/R7 +235 drivers/firmware/arm_scmi/transports/smc.c
1dc6558062dadf drivers/firmware/arm_scmi/smc.c Peng Fan 2020-03-08 219
1dc6558062dadf drivers/firmware/arm_scmi/smc.c Peng Fan 2020-03-08 220 static int smc_send_message(struct scmi_chan_info *cinfo,
1dc6558062dadf drivers/firmware/arm_scmi/smc.c Peng Fan 2020-03-08 221 struct scmi_xfer *xfer)
1dc6558062dadf drivers/firmware/arm_scmi/smc.c Peng Fan 2020-03-08 222 {
1dc6558062dadf drivers/firmware/arm_scmi/smc.c Peng Fan 2020-03-08 223 struct scmi_smc *scmi_info = cinfo->transport_info;
1dc6558062dadf drivers/firmware/arm_scmi/smc.c Peng Fan 2020-03-08 224 struct arm_smccc_res res;
1dc6558062dadf drivers/firmware/arm_scmi/smc.c Peng Fan 2020-03-08 225
f716cbd33f038a drivers/firmware/arm_scmi/smc.c Cristian Marussi 2021-12-20 226 /*
0bfdca8a8661aa drivers/firmware/arm_scmi/smc.c Cristian Marussi 2021-12-20 227 * Channel will be released only once response has been
f716cbd33f038a drivers/firmware/arm_scmi/smc.c Cristian Marussi 2021-12-20 228 * surely fully retrieved, so after .mark_txdone()
f716cbd33f038a drivers/firmware/arm_scmi/smc.c Cristian Marussi 2021-12-20 229 */
0bfdca8a8661aa drivers/firmware/arm_scmi/smc.c Cristian Marussi 2021-12-20 230 smc_channel_lock_acquire(scmi_info, xfer);
1dc6558062dadf drivers/firmware/arm_scmi/smc.c Peng Fan 2020-03-08 231
d4ae39de300c80 drivers/firmware/arm_scmi/transports/smc.c Cristian Marussi 2024-08-12 232 core->shmem->tx_prepare(scmi_info->shmem, xfer, cinfo);
1dc6558062dadf drivers/firmware/arm_scmi/smc.c Peng Fan 2020-03-08 233
da405477e76707 drivers/firmware/arm_scmi/smc.c Nikunj Kela 2023-10-09 234 if (scmi_info->cap_id != ULONG_MAX)
da405477e76707 drivers/firmware/arm_scmi/smc.c Nikunj Kela 2023-10-09 @235 arm_smccc_1_1_invoke(scmi_info->func_id, scmi_info->cap_id, 0,
da405477e76707 drivers/firmware/arm_scmi/smc.c Nikunj Kela 2023-10-09 236 0, 0, 0, 0, 0, &res);
da405477e76707 drivers/firmware/arm_scmi/smc.c Nikunj Kela 2023-10-09 237 else
1f17395124a53a drivers/firmware/arm_scmi/smc.c Sudeep Holla 2023-10-09 238 arm_smccc_1_1_invoke(scmi_info->func_id, scmi_info->param_page,
da405477e76707 drivers/firmware/arm_scmi/smc.c Nikunj Kela 2023-10-09 239 scmi_info->param_offset, 0, 0, 0, 0, 0,
da405477e76707 drivers/firmware/arm_scmi/smc.c Nikunj Kela 2023-10-09 240 &res);
dd820ee21d5e07 drivers/firmware/arm_scmi/smc.c Jim Quinlan 2020-12-22 241
f7199cf489027a drivers/firmware/arm_scmi/smc.c Sudeep Holla 2020-04-17 242 /* Only SMCCC_RET_NOT_SUPPORTED is valid error code */
f716cbd33f038a drivers/firmware/arm_scmi/smc.c Cristian Marussi 2021-12-20 243 if (res.a0) {
0bfdca8a8661aa drivers/firmware/arm_scmi/smc.c Cristian Marussi 2021-12-20 244 smc_channel_lock_release(scmi_info);
f7199cf489027a drivers/firmware/arm_scmi/smc.c Sudeep Holla 2020-04-17 245 return -EOPNOTSUPP;
f716cbd33f038a drivers/firmware/arm_scmi/smc.c Cristian Marussi 2021-12-20 246 }
f716cbd33f038a drivers/firmware/arm_scmi/smc.c Cristian Marussi 2021-12-20 247
f7199cf489027a drivers/firmware/arm_scmi/smc.c Sudeep Holla 2020-04-17 248 return 0;
1dc6558062dadf drivers/firmware/arm_scmi/smc.c Peng Fan 2020-03-08 249 }
1dc6558062dadf drivers/firmware/arm_scmi/smc.c Peng Fan 2020-03-08 250
:::::: The code at line 235 was first introduced by commit
:::::: da405477e7670782241234ea6b4309f3224ecb63 firmware: arm_scmi: Add qcom smc/hvc transport support
:::::: TO: Nikunj Kela <quic_nkela@quicinc.com>
:::::: CC: Sudeep Holla <sudeep.holla@arm.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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