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iommu/amd: remove return value of amd_iommu_detect

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The return value of amd_iommu_detect is not used, so remove it and
is consistent with other iommu detect functions.

Signed-off-by: Gao Shiyuan <gaoshiyuan@baidu.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20250103165808.80939-1-gaoshiyuan@baidu.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Gao Shiyuan 2025-01-04 00:58:08 +08:00 committed by Joerg Roedel
parent b0988acc94
commit 5bb494d5cb
2 changed files with 6 additions and 8 deletions
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10
drivers/iommu/amd/init.c
View File

@ -3421,25 +3421,23 @@ static bool amd_iommu_sme_check(void)
* IOMMUs * IOMMUs
* *
****************************************************************************/ ****************************************************************************/
int __init amd_iommu_detect(void) void __init amd_iommu_detect(void)
{ {
int ret; int ret;
if (no_iommu || (iommu_detected && !gart_iommu_aperture)) if (no_iommu || (iommu_detected && !gart_iommu_aperture))
return -ENODEV; return;
if (!amd_iommu_sme_check()) if (!amd_iommu_sme_check())
return -ENODEV; return;
ret = iommu_go_to_state(IOMMU_IVRS_DETECTED); ret = iommu_go_to_state(IOMMU_IVRS_DETECTED);
if (ret) if (ret)
return ret; return;
amd_iommu_detected = true; amd_iommu_detected = true;
iommu_detected = 1; iommu_detected = 1;
x86_init.iommu.iommu_init = amd_iommu_init; x86_init.iommu.iommu_init = amd_iommu_init;
return 1;
} }
/**************************************************************************** /****************************************************************************

4
include/linux/amd-iommu.h
View File

@ -31,11 +31,11 @@ struct amd_iommu_pi_data {
struct task_struct; struct task_struct;
struct pci_dev; struct pci_dev;
extern int amd_iommu_detect(void); extern void amd_iommu_detect(void);
#else /* CONFIG_AMD_IOMMU */ #else /* CONFIG_AMD_IOMMU */
static inline int amd_iommu_detect(void) { return -ENODEV; } static inline void amd_iommu_detect(void) { }
#endif /* CONFIG_AMD_IOMMU */ #endif /* CONFIG_AMD_IOMMU */