CC: l...@lists.linux.dev CC: kbuild-...@lists.01.org BCC: l...@intel.com In-Reply-To: <20220317002704.1835870-3-vishal.l.ve...@intel.com> References: <20220317002704.1835870-3-vishal.l.ve...@intel.com> TO: Vishal Verma <vishal.l.ve...@intel.com>
Hi Vishal, [FYI, it's a private test report for your RFC patch.] [auto build test WARNING on 74be98774dfbc5b8b795db726bd772e735d2edd4] url: https://github.com/0day-ci/linux/commits/Vishal-Verma/acpi-add-support-for-CXL-_OSC/20220317-082840 base: 74be98774dfbc5b8b795db726bd772e735d2edd4 :::::: branch date: 24 hours ago :::::: commit date: 24 hours ago config: i386-randconfig-c001 (https://download.01.org/0day-ci/archive/20220318/202203180801.ebpkbpgj-...@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project a6ec1e3d798f8eab43fb3a91028c6ab04e115fcb) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/8020d862c22d52b61a590343b2202e5d05332100 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Vishal-Verma/acpi-add-support-for-CXL-_OSC/20220317-082840 git checkout 8020d862c22d52b61a590343b2202e5d05332100 # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386 clang-analyzer If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> clang-analyzer warnings: (new ones prefixed by >>) drivers/mfd/wm831x-irq.c:517:7: note: 'primary' is equal to 8192 if (primary == WM831X_GP_INT && ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value' (cond) ? \ ^~~~ drivers/mfd/wm831x-irq.c:517:7: note: Left side of '&&' is true if (primary == WM831X_GP_INT && ^ drivers/mfd/wm831x-irq.c:517:3: note: '?' condition is false if (primary == WM831X_GP_INT && ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value' (cond) ? \ ^ drivers/mfd/wm831x-irq.c:517:3: note: Taking false branch if (primary == WM831X_GP_INT && ^ include/linux/compiler.h:56:23: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ drivers/mfd/wm831x-irq.c:528:7: note: 'primary' is equal to 8192 if (primary == WM831X_GP_INT && ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ drivers/mfd/wm831x-irq.c:528:7: note: Left side of '&&' is true if (primary == WM831X_GP_INT && ^ drivers/mfd/wm831x-irq.c:528:3: note: Assuming the condition is false if (primary == WM831X_GP_INT && ^ include/linux/compiler.h:56:45: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ drivers/mfd/wm831x-irq.c:528:3: note: '?' condition is false if (primary == WM831X_GP_INT && ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ drivers/mfd/wm831x-irq.c:528:7: note: 'primary' is equal to 8192 if (primary == WM831X_GP_INT && ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value' (cond) ? \ ^~~~ drivers/mfd/wm831x-irq.c:528:7: note: Left side of '&&' is true if (primary == WM831X_GP_INT && ^ drivers/mfd/wm831x-irq.c:528:3: note: '?' condition is true if (primary == WM831X_GP_INT && ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value' (cond) ? \ ^ drivers/mfd/wm831x-irq.c:528:3: note: Taking true branch if (primary == WM831X_GP_INT && ^ include/linux/compiler.h:56:23: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ drivers/mfd/wm831x-irq.c:531:21: note: The result of the left shift is undefined due to shifting by '4294967295', which is greater or equal to the width of type 'int' while (!(ret & 1 << (i - WM831X_IRQ_GPIO_1))) { ^ ~~~~~~~~~~~~~~~~~~~~~~~ 8 warnings generated. >> drivers/acpi/pci_root.c:283:17: warning: Assigned value is garbage or >> undefined [clang-analyzer-core.uninitialized.Assign] *cxl_control = cxl_result; ^ drivers/acpi/pci_root.c:428:6: note: Assuming 'mask' is non-null if (!mask) ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ drivers/acpi/pci_root.c:428:2: note: '?' condition is false if (!mask) ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ drivers/acpi/pci_root.c:428:7: note: 'mask' is non-null if (!mask) ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value' (cond) ? \ ^~~~ drivers/acpi/pci_root.c:428:2: note: '?' condition is false if (!mask) ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value' (cond) ? \ ^ drivers/acpi/pci_root.c:428:2: note: Taking false branch if (!mask) ^ include/linux/compiler.h:56:23: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ drivers/acpi/pci_root.c:432:6: note: Assuming 'root' is non-null if (!root) ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ drivers/acpi/pci_root.c:432:2: note: '?' condition is false if (!root) ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ drivers/acpi/pci_root.c:432:7: note: 'root' is non-null if (!root) ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value' (cond) ? \ ^~~~ drivers/acpi/pci_root.c:432:2: note: '?' condition is false if (!root) ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value' (cond) ? \ ^ drivers/acpi/pci_root.c:432:2: note: Taking false branch if (!root) ^ include/linux/compiler.h:56:23: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ drivers/acpi/pci_root.c:438:2: note: '?' condition is false if (is_cxl(root)) { -- ^ include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value' (cond) ? \ ^ drivers/acpi/pci_root.c:447:3: note: Taking false branch if (ACPI_FAILURE(status)) ^ include/linux/compiler.h:56:23: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ drivers/acpi/pci_root.c:449:3: note: '?' condition is false if (is_cxl(root)) { ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ drivers/acpi/pci_root.c:449:3: note: '?' condition is false if (is_cxl(root)) { ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value' (cond) ? \ ^ drivers/acpi/pci_root.c:449:3: note: Taking false branch if (is_cxl(root)) { ^ include/linux/compiler.h:56:23: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ drivers/acpi/pci_root.c:455:8: note: Assuming the condition is true if (ctrl == *mask) ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ drivers/acpi/pci_root.c:455:4: note: '?' condition is false if (ctrl == *mask) ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ drivers/acpi/pci_root.c:455:4: note: '?' condition is true if (ctrl == *mask) ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value' (cond) ? \ ^ drivers/acpi/pci_root.c:455:4: note: Taking true branch if (ctrl == *mask) ^ include/linux/compiler.h:56:23: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ drivers/acpi/pci_root.c:456:5: note: Execution continues on line 465 break; ^ drivers/acpi/pci_root.c:465:7: note: Assuming the condition is true if (((root->osc_control_set & ctrl) == ctrl) && ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ drivers/acpi/pci_root.c:465:6: note: Left side of '&&' is true if (((root->osc_control_set & ctrl) == ctrl) && ^ drivers/acpi/pci_root.c:466:34: note: The right operand of '&' is a garbage value ((root->cxl_osc_control_set & cxl_ctrl) == cxl_ctrl)) ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> drivers/acpi/pci_root.c:564:2: warning: Undefined or garbage value returned >> to caller [clang-analyzer-core.uninitialized.UndefReturn] return control; ^ drivers/acpi/pci_root.c:598:2: note: Assuming 'x86_apple_machine' is false if (x86_apple_machine) { ^ include/linux/compiler.h:56:45: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ drivers/acpi/pci_root.c:598:2: note: '?' condition is false if (x86_apple_machine) { ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ drivers/acpi/pci_root.c:598:6: note: 'x86_apple_machine' is false if (x86_apple_machine) { ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value' (cond) ? \ ^~~~ drivers/acpi/pci_root.c:598:2: note: '?' condition is false if (x86_apple_machine) { ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value' (cond) ? \ ^ drivers/acpi/pci_root.c:598:2: note: Taking false branch if (x86_apple_machine) { ^ include/linux/compiler.h:56:23: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ drivers/acpi/pci_root.c:609:2: note: '?' condition is false if (os_control_query_checks(root, support)) ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ drivers/acpi/pci_root.c:609:2: note: '?' condition is false if (os_control_query_checks(root, support)) ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value' (cond) ? \ ^ drivers/acpi/pci_root.c:609:2: note: Taking false branch if (os_control_query_checks(root, support)) ^ include/linux/compiler.h:56:23: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ drivers/acpi/pci_root.c:612:2: note: '?' condition is false if (is_cxl(root)) { ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ drivers/acpi/pci_root.c:612:2: note: '?' condition is true if (is_cxl(root)) { ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value' (cond) ? \ ^ drivers/acpi/pci_root.c:612:2: note: Taking true branch if (is_cxl(root)) { vim +283 drivers/acpi/pci_root.c 63f10f0f6df4e4 Kenji Kaneshige 2009-02-09 256 8020d862c22d52 Vishal Verma 2022-03-16 257 static acpi_status acpi_pci_query_osc(struct acpi_pci_root *root, u32 support, 8020d862c22d52 Vishal Verma 2022-03-16 258 u32 *control, u32 cxl_support, 8020d862c22d52 Vishal Verma 2022-03-16 259 u32 *cxl_control) 63f10f0f6df4e4 Kenji Kaneshige 2009-02-09 260 { 63f10f0f6df4e4 Kenji Kaneshige 2009-02-09 261 acpi_status status; 8020d862c22d52 Vishal Verma 2022-03-16 262 u32 pci_result, cxl_result, capbuf[8]; ab8e8957a2ae21 Rafael J. Wysocki 2010-08-21 263 ab8e8957a2ae21 Rafael J. Wysocki 2010-08-21 264 support |= root->osc_support_set; 63f10f0f6df4e4 Kenji Kaneshige 2009-02-09 265 b938a229c85a56 Bjorn Helgaas 2013-09-05 266 capbuf[OSC_QUERY_DWORD] = OSC_QUERY_ENABLE; b938a229c85a56 Bjorn Helgaas 2013-09-05 267 capbuf[OSC_SUPPORT_DWORD] = support; b938a229c85a56 Bjorn Helgaas 2013-09-05 268 capbuf[OSC_CONTROL_DWORD] = *control | root->osc_control_set; 63f10f0f6df4e4 Kenji Kaneshige 2009-02-09 269 8020d862c22d52 Vishal Verma 2022-03-16 270 if (is_cxl(root)) { 8020d862c22d52 Vishal Verma 2022-03-16 271 cxl_support |= root->cxl_osc_support_set; 8020d862c22d52 Vishal Verma 2022-03-16 272 capbuf[OSC_CXL_SUPPORT_DWORD] = cxl_support; 8020d862c22d52 Vishal Verma 2022-03-16 273 capbuf[OSC_CXL_CONTROL_DWORD] = *cxl_control | root->cxl_osc_control_set; 8020d862c22d52 Vishal Verma 2022-03-16 274 } 8020d862c22d52 Vishal Verma 2022-03-16 275 53da48751c13ff Dan Williams 2022-03-16 276 retry: 8020d862c22d52 Vishal Verma 2022-03-16 277 status = acpi_pci_run_osc(root, capbuf, &pci_result, &cxl_result); 63f10f0f6df4e4 Kenji Kaneshige 2009-02-09 278 if (ACPI_SUCCESS(status)) { ab8e8957a2ae21 Rafael J. Wysocki 2010-08-21 279 root->osc_support_set = support; 8020d862c22d52 Vishal Verma 2022-03-16 280 *control = pci_result; 8020d862c22d52 Vishal Verma 2022-03-16 281 if (is_cxl(root)) { 8020d862c22d52 Vishal Verma 2022-03-16 282 root->cxl_osc_support_set = cxl_support; 8020d862c22d52 Vishal Verma 2022-03-16 @283 *cxl_control = cxl_result; 8020d862c22d52 Vishal Verma 2022-03-16 284 } 53da48751c13ff Dan Williams 2022-03-16 285 } else if (is_cxl(root)) { 53da48751c13ff Dan Williams 2022-03-16 286 /* 53da48751c13ff Dan Williams 2022-03-16 287 * CXL _OSC is optional on CXL 1.1 hosts. Fall back to PCIe _OSC 53da48751c13ff Dan Williams 2022-03-16 288 * upon any failure using CXL _OSC. 53da48751c13ff Dan Williams 2022-03-16 289 */ 53da48751c13ff Dan Williams 2022-03-16 290 root->cxl_osc_disable = true; 53da48751c13ff Dan Williams 2022-03-16 291 goto retry; ab8e8957a2ae21 Rafael J. Wysocki 2010-08-21 292 } 63f10f0f6df4e4 Kenji Kaneshige 2009-02-09 293 return status; 63f10f0f6df4e4 Kenji Kaneshige 2009-02-09 294 } 63f10f0f6df4e4 Kenji Kaneshige 2009-02-09 295 --- 0-DAY CI Kernel Test Service https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org _______________________________________________ kbuild mailing list -- kbuild@lists.01.org To unsubscribe send an email to kbuild-le...@lists.01.org
