From: kernel test robot <lkp@intel.com>
To: Sairaj Kodilkar <sarunkod@amd.com>,
"H. Peter Anvin" <hpa@zytor.com>,
"Joerg Roedel (AMD)" <joro@8bytes.org>,
"Mike Rapoport (Microsoft)" <rppt@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Borislav Petkov <bp@alien8.de>,
Dapeng Mi <dapeng1.mi@linux.intel.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
Ethan Nelson-Moore <enelsonmoore@gmail.com>,
Ingo Molnar <mingo@redhat.com>, Jakub Kicinski <kuba@kernel.org>,
Jeff Layton <jlayton@kernel.org>,
Jonathan Corbet <corbet@lwn.net>,
Kiryl Shutsemau <kas@kernel.org>,
Li RongQing <lirongqing@baidu.com>,
Marco Elver <elver@google.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Randy Dunlap <rdunlap@infradead.org>,
Rick Edgecombe <rick.p.edgecombe@intel.com>,
Robin Murphy <robin.murphy@arm.com>,
Sean Christopherson <seanjc@google.com>,
Shuah Khan <skhan@linuxfoundation.org>,
Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
Thomas Gleixner <tglx@kernel.org>,
Vasant Hegde <vasant.hegde@amd.com>,
Will Deacon <will@kernel.org>,
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 <linux-mm@kvack.org>
Subject: Re: [PATCH v5 7/7] iommu/amd: Provide kernel command line option to enable GAPPI
Date: Fri, 16 Oct 2026 16:23:02 +0800 [thread overview]
Message-ID: <202610161625.7iSczyVo-lkp@intel.com> (raw)
In-Reply-To: <20261015064515.10700-8-sarunkod@amd.com>
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 <lkp@intel.com>
| 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
prev parent reply other threads:[~2026-10-16 8:25 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-15 6:45 [PATCH v5 0/7] Add support for AMD IOMMU GAPPI Sairaj Kodilkar
2026-10-15 6:45 ` [PATCH v5 1/7] iommu/amd: KVM: SVM: Rename cpu to apicid in IOMMU interface Sairaj Kodilkar
2026-10-15 6:45 ` [PATCH v5 2/7] iommu/amd: KVM: SVM: Rename ga_log_intr to wakeup_intr " Sairaj Kodilkar
2026-10-15 6:45 ` [PATCH v5 3/7] iommu/amd: KVM: SVM: Add explicit vCPU running state to " Sairaj Kodilkar
2026-10-15 6:45 ` [PATCH v5 4/7] iommu/amd: Program guest-mode IRTEs for GAPPI wakeup when IRTE[IsRun] = 0 Sairaj Kodilkar
2026-10-16 4:54 ` kernel test robot
2026-10-15 6:45 ` [PATCH v5 5/7] KVM: VMX: Factor out wakeup list handling code to KVM Sairaj Kodilkar
2026-10-15 6:45 ` [PATCH v5 6/7] KVM: SVM: Add support for AMD IOMMU Guest APIC Physical Processor Interrupt (GAPPI) Sairaj Kodilkar
2026-10-15 6:45 ` [PATCH v5 7/7] iommu/amd: Provide kernel command line option to enable GAPPI Sairaj Kodilkar
2026-10-16 8:23 ` kernel test robot [this message]
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