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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2025-12-06 11:13:50 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2025-12-06 11:13:50 -0800 |
| commit | 5e5ea7f61610239fca058011e7d4f342b34d1558 (patch) | |
| tree | e054a25821dd129c80e9e89552267583d29e1dea | |
| parent | b0319c4642638bad4b36974055b1c0894b2c7aa9 (diff) | |
| download | tip-5e5ea7f61610239fca058011e7d4f342b34d1558.tar.gz | |
iommu/amd: fix SEV-TIO support reporting
Commit eeb934137deb ("iommu/amd: Report SEV-TIO support") was confused
about the config options that expose amd_iommu_sev_tio_supported(), and
made the declaration (and alternative dummy function) conditional on the
CONFIG_AMD_IOMMU config option.
But the code is actually dependent on CONFIG_KVM_AMD_SEV, resulting in
ERROR: modpost: "amd_iommu_sev_tio_supported" [drivers/crypto/ccp/ccp.ko] undefined!
make[2]: *** [scripts/Makefile.modpost:147: Module.symvers] Error 1
if you have the AMD iommu enabled, but don't enable KVM_AMD_SEV support.
Fix it by moving the declaration into the right #ifdef section in the
header file.
Fixes: eeb934137deb ("iommu/amd: Report SEV-TIO support")
Cc: Alexey Kardashevskiy <aik@amd.com>
Cc: Joerg Roedel <joerg.roedel@amd.com>
Cc: Vasant Hegde <vasant.hegde@amd.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | include/linux/amd-iommu.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/amd-iommu.h b/include/linux/amd-iommu.h index 0f64f09d1f34ff..edcee9f5335a6f 100644 --- a/include/linux/amd-iommu.h +++ b/include/linux/amd-iommu.h @@ -18,12 +18,10 @@ struct task_struct; struct pci_dev; extern void amd_iommu_detect(void); -extern bool amd_iommu_sev_tio_supported(void); #else /* CONFIG_AMD_IOMMU */ static inline void amd_iommu_detect(void) { } -static inline bool amd_iommu_sev_tio_supported(void) { return false; } #endif /* CONFIG_AMD_IOMMU */ @@ -72,8 +70,10 @@ struct amd_iommu *get_amd_iommu(unsigned int idx); #ifdef CONFIG_KVM_AMD_SEV int amd_iommu_snp_disable(void); +extern bool amd_iommu_sev_tio_supported(void); #else static inline int amd_iommu_snp_disable(void) { return 0; } +static inline bool amd_iommu_sev_tio_supported(void) { return false; } #endif #endif /* _ASM_X86_AMD_IOMMU_H */ |