From: Krzysztof Kozlowski <krzk@kernel.org>
To: Joerg Roedel <joro@8bytes.org>,
Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Subject: [PATCH] iommu: amd: Add missing function prototypes to fix -Wmissing-prototypes
Date: Mon, 27 Jul 2020 20:36:31 +0200 [thread overview]
Message-ID: <20200727183631.16744-1-krzk@kernel.org> (raw)
Few exported functions from AMD IOMMU driver are missing prototypes.
They have declaration in arch/x86/events/amd/iommu.h but this file
cannot be included in the driver. Add prototypes to fix W=1 warnings
like:
drivers/iommu/amd/init.c:3066:19: warning:
no previous prototype for 'get_amd_iommu' [-Wmissing-prototypes]
3066 | struct amd_iommu *get_amd_iommu(unsigned int idx)
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
drivers/iommu/amd/amd_iommu.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/iommu/amd/amd_iommu.h b/drivers/iommu/amd/amd_iommu.h
index 57309716fd18..0781b7112467 100644
--- a/drivers/iommu/amd/amd_iommu.h
+++ b/drivers/iommu/amd/amd_iommu.h
@@ -41,6 +41,15 @@ extern int amd_iommu_guest_ir;
struct iommu_domain;
extern bool amd_iommu_v2_supported(void);
+extern struct amd_iommu *get_amd_iommu(unsigned int idx);
+extern u8 amd_iommu_pc_get_max_banks(unsigned int idx);
+extern bool amd_iommu_pc_supported(void);
+extern u8 amd_iommu_pc_get_max_counters(unsigned int idx);
+extern int amd_iommu_pc_get_reg(struct amd_iommu *iommu, u8 bank, u8 cntr,
+ u8 fxn, u64 *value);
+extern int amd_iommu_pc_set_reg(struct amd_iommu *iommu, u8 bank, u8 cntr,
+ u8 fxn, u64 *value);
+
extern int amd_iommu_register_ppr_notifier(struct notifier_block *nb);
extern int amd_iommu_unregister_ppr_notifier(struct notifier_block *nb);
extern void amd_iommu_domain_direct_map(struct iommu_domain *dom);
--
2.17.1
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next reply other threads:[~2020-07-27 18:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-27 18:36 Krzysztof Kozlowski [this message]
2020-09-04 8:42 ` [PATCH] iommu: amd: Add missing function prototypes to fix -Wmissing-prototypes Joerg Roedel
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