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Peter Anvin" , "Joerg Roedel (AMD)" , "Mike Rapoport (Microsoft)" , Andrew Morton , Borislav Petkov , Dapeng Mi , Dave Hansen , Ethan Nelson-Moore , Ingo Molnar , Jakub Kicinski , Jeff Layton , Jonathan Corbet , Kiryl Shutsemau , Li RongQing , Marco Elver , Paolo Bonzini , Randy Dunlap , Rick Edgecombe , Robin Murphy , Sean Christopherson , Shuah Khan , Suravee Suthikulpanit , Thomas Gleixner , Vasant Hegde , Will Deacon , iommu@lists.linux.dev, kvm@vger.kernel.org, linux-coco@lists.linux.dev Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Linux Memory Management List Subject: Re: [PATCH v5 7/7] iommu/amd: Provide kernel command line option to enable GAPPI Message-ID: <202610161625.7iSczyVo-lkp@intel.com> References: <20261015064515.10700-8-sarunkod@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261015064515.10700-8-sarunkod@amd.com> X-Stat-Signature: 9amiywe19x66id8gcne7uk3gotbicuee X-Rspamd-Queue-Id: 18C5640007 X-Rspam-User: X-Rspamd-Server: rspam02 X-HE-Tag: 1792139143-367768 X-HE-Meta: U2FsdGVkX18pREKtIRpmD0Hni870kN/FBbpbHPnM1XFwPN1mJh+wxTHmjypTgDxowCbFJ9ch+62Zp7Lr63LPFOM4i9BzYLBOlNJpgpZLcuC5LflEkIcwvPbQVRB3gd03ZRPM/mCSvhGieqs8vhzQJRpWK6TFEJCly3pDkDt4UvauCz8xRid1os7UXjTcPYYFUfOGa26GXjaiyX0W8R6/4+P9q4bQMrR7GOGjbRuG1pQ6Wg1lqyk0SbI02Qh1/Nx4xypE0KeIHrt+WPGp11RaNHBvIC7MfYCV7jMqytLSXgQa24mxENBkZDdWISWL1yk3nzeApHQEyzqGsXZH5Qtd/WDbH816QekFeN8PFY8apMlV5yL6ZO2C8UNsvlxMWiaSOFmwi5lFwov/JKH/Keyn6WUXdw+4n5qjqhW/WWezcq0L5yt0z30xegOfwZIsHy9/k6vF3yVax7xMlD75E4xkfn/LgP2PXuLYZqu3k96Bwl+uMcppR0Pb5jbswAKzBi4HJYIxwuJFSRflBxAG4Tadj+3g5lfYEAv+tsAH/Lh5tR34z2Q0OMsf88iKSGC3l5UejhgAb3ieS4TNhieG683k5X4/8gFtyiisWviDXg7Rgt1MvqaxWdsv5zIP5oNBjJ2UPuml4GOqsjGwo75WwozpNa+ymSOpatzaqnt9tZLzPSyXyZAfpIDKn1wJg9rIGqViow9HCF0EVSKCravXdj+sqEPMq1+EvS+MKCuDNyw5XiwY7xahbDEdWgnjMTwL6dXYw+YlpPj+5szQpDqc2CIG6DK0XS/I0bWcuRC8YoCwjnXbT/yfCSiZ4/yEC2XqXen5r8+PE0cUcplT1l54KFtQ3GFPA5VmjeSYePiVI/i1JA3OzFJP4NAJHuUggjNxkPiXVKORNxAbeCraU74f/ghyjwMQ9s8v+nR9uFmltfbksswLp9xymTpmiq/s48hHW6KgvTwnNmxnEsf/ZuaaFiX v/ySdNvh hMHynd0fqywsQfNlewywAdgiaAbGTsthumRy9u0dcdfZaivbAS8zZLiDhjvaGa/abN4VplFhkf6xDRPoo8jNSH2RbbmEc6/ZlkPnbZFomY444GLOrTzqBd1hSimIOwBwRANmxyeq+wxrbFMAOGhsmtt70yElDdmuF0176gOM5weVHpwoAuETXbAGLuumQlHUZLKNimaKuhpLWzqEvfktipQYo/Av65r9lMc3flz0HNSBCUnaFp+sfzaAdQtrD7iDtYiVDwtxB1Qqc0A7sOb4x0VOJJI/8Tu1nHja6PyMZLi9JoNADct0JY6q9kuEwj+ss18R18V3y11Op1zp7kYJ0XvgDtNWJo++vS8+Q Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Sairaj, kernel test robot noticed the following build errors: [auto build test ERROR on 4056b3c9d3c92ea45955641dbafeb9b960e146ef] url: https://github.com/intel-lab-lkp/linux/commits/Sairaj-Kodilkar/iommu-amd-KVM-SVM-Rename-cpu-to-apicid-in-IOMMU-interface/20261015-121509 base: 4056b3c9d3c92ea45955641dbafeb9b960e146ef patch link: https://lore.kernel.org/r/20261015064515.10700-8-sarunkod%40amd.com patch subject: [PATCH v5 7/7] iommu/amd: Provide kernel command line option to enable GAPPI config: x86_64-randconfig-1017-20261016 (https://download.01.org/0day-ci/archive/20261016/202610161625.7iSczyVo-lkp@intel.com/config) compiler: clang version 22.1.8 (https://github.com/llvm/llvm-project ca7933e47d3a3451d81e72ac174dcb5aa28b59d1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261016/202610161625.7iSczyVo-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202610161625.7iSczyVo-lkp@intel.com/ All errors (new ones prefixed by >>): drivers/iommu/amd/init.c:163:6: error: redefinition of 'false' as different kind of symbol 163 | bool amd_iommu_gappi; | ^ include/linux/amd-iommu.h:65:25: note: expanded from macro 'amd_iommu_gappi' 65 | #define amd_iommu_gappi false | ^ include/linux/stddef.h:11:2: note: previous definition is here 11 | false = 0, | ^ drivers/iommu/amd/init.c:164:15: error: redefinition of 'false' as different kind of symbol 164 | EXPORT_SYMBOL(amd_iommu_gappi); | ^ include/linux/amd-iommu.h:65:25: note: expanded from macro 'amd_iommu_gappi' 65 | #define amd_iommu_gappi false | ^ include/linux/stddef.h:11:2: note: previous definition is here 11 | false = 0, | ^ drivers/iommu/amd/init.c:164:1: error: cannot take the address of an rvalue of type 'int' 164 | EXPORT_SYMBOL(amd_iommu_gappi); | ^ ~~~~~~~~~~~~~~~ include/linux/export.h:89:29: note: expanded from macro 'EXPORT_SYMBOL' 89 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "") | ^ ~~~ include/linux/export.h:86:38: note: expanded from macro '_EXPORT_SYMBOL' 86 | #define _EXPORT_SYMBOL(sym, license) __EXPORT_SYMBOL(sym, license, "") | ^ ~~~ include/linux/export.h:77:2: note: expanded from macro '__EXPORT_SYMBOL' 77 | __ADDRESSABLE(sym) \ | ^ ~~~ include/linux/compiler.h:276:2: note: expanded from macro '__ADDRESSABLE' 276 | ___ADDRESSABLE(sym, __section(".discard.addressable")) | ^ ~~~ include/linux/compiler.h:273:63: note: expanded from macro '___ADDRESSABLE' 273 | __UNIQUE_ID(__PASTE(addressable_, sym)) = (void *)(uintptr_t)&sym; | ^~~~ >> drivers/iommu/amd/init.c:3804:20: error: expression is not assignable 3804 | amd_iommu_gappi = true; | ~~~~~~~~~~~~~~~ ^ 4 errors generated. vim +3804 drivers/iommu/amd/init.c 3775 3776 static int __init parse_amd_iommu_options(char *str) 3777 { 3778 if (!str) 3779 return -EINVAL; 3780 3781 while (*str) { 3782 if (strncmp(str, "fullflush", 9) == 0) { 3783 pr_warn("amd_iommu=fullflush deprecated; use iommu.strict=1 instead\n"); 3784 iommu_set_dma_strict(); 3785 } else if (strncmp(str, "force_enable", 12) == 0) { 3786 amd_iommu_force_enable = true; 3787 } else if (strncmp(str, "off", 3) == 0) { 3788 amd_iommu_disabled = true; 3789 } else if (strncmp(str, "force_isolation", 15) == 0) { 3790 amd_iommu_force_isolation = true; 3791 } else if (strncmp(str, "pgtbl_v1", 8) == 0) { 3792 amd_iommu_pgtable = PD_MODE_V1; 3793 } else if (strncmp(str, "pgtbl_v2", 8) == 0) { 3794 amd_iommu_pgtable = PD_MODE_V2; 3795 } else if (strncmp(str, "irtcachedis", 11) == 0) { 3796 amd_iommu_irtcachedis = true; 3797 } else if (strncmp(str, "nohugepages", 11) == 0) { 3798 pr_info("Restricting V1 page-sizes to 4KiB"); 3799 amd_iommu_pgsize_bitmap = AMD_IOMMU_PGSIZES_4K; 3800 } else if (strncmp(str, "v2_pgsizes_only", 15) == 0) { 3801 pr_info("Restricting V1 page-sizes to 4KiB/2MiB/1GiB"); 3802 amd_iommu_pgsize_bitmap = AMD_IOMMU_PGSIZES_V2; 3803 } else if (strncmp(str, "gappi", 5) == 0) { > 3804 amd_iommu_gappi = true; 3805 } else { 3806 pr_notice("Unknown option - '%s'\n", str); 3807 } 3808 3809 str += strcspn(str, ","); 3810 while (*str == ',') 3811 str++; 3812 } 3813 3814 return 1; 3815 } 3816 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki