linux-kernel - [PATCH 2/2] arm64: perf: Mark all accessor functions inline

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Message-Id: <d53a19043c0c3bd25f6c203e73a2fb08a9661824.1683561482.git.geert+renesas@glider.be>
Date:   Mon,  8 May 2023 18:05:19 +0200
From:   Geert Uytterhoeven <geert+renesas@...der.be>
To:     Marc Zyngier <maz@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH 2/2] arm64: perf: Mark all accessor functions inline

When just including <asm/arm_pmuv3.h>:

    arch/arm64/include/asm/arm_pmuv3.h:31:13: error: ‘write_pmevtypern’ defined but not used [-Werror=unused-function]
       31 | static void write_pmevtypern(int n, unsigned long val)
	  |             ^~~~~~~~~~~~~~~~
    arch/arm64/include/asm/arm_pmuv3.h:24:13: error: ‘write_pmevcntrn’ defined but not used [-Werror=unused-function]
       24 | static void write_pmevcntrn(int n, unsigned long val)
	  |             ^~~~~~~~~~~~~~~
    arch/arm64/include/asm/arm_pmuv3.h:16:22: error: ‘read_pmevcntrn’ defined but not used [-Werror=unused-function]
       16 | static unsigned long read_pmevcntrn(int n)
	  |                      ^~~~~~~~~~~~~~

Fix this by adding the missing "inline" keywords to the three accessor
functions that lack them.

Fixes: df29ddf4f04b00cf ("arm64: perf: Abstract system register accesses away")
Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
---
 arch/arm64/include/asm/arm_pmuv3.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/include/asm/arm_pmuv3.h b/arch/arm64/include/asm/arm_pmuv3.h
index d6b51deb7bf0ff2f..18dc2fb3d7b7b2d0 100644
--- a/arch/arm64/include/asm/arm_pmuv3.h
+++ b/arch/arm64/include/asm/arm_pmuv3.h
@@ -13,7 +13,7 @@
 
 #define RETURN_READ_PMEVCNTRN(n) \
 	return read_sysreg(pmevcntr##n##_el0)
-static unsigned long read_pmevcntrn(int n)
+static inline unsigned long read_pmevcntrn(int n)
 {
 	PMEVN_SWITCH(n, RETURN_READ_PMEVCNTRN);
 	return 0;
@@ -21,14 +21,14 @@ static unsigned long read_pmevcntrn(int n)
 
 #define WRITE_PMEVCNTRN(n) \
 	write_sysreg(val, pmevcntr##n##_el0)
-static void write_pmevcntrn(int n, unsigned long val)
+static inline void write_pmevcntrn(int n, unsigned long val)
 {
 	PMEVN_SWITCH(n, WRITE_PMEVCNTRN);
 }
 
 #define WRITE_PMEVTYPERN(n) \
 	write_sysreg(val, pmevtyper##n##_el0)
-static void write_pmevtypern(int n, unsigned long val)
+static inline void write_pmevtypern(int n, unsigned long val)
 {
 	PMEVN_SWITCH(n, WRITE_PMEVTYPERN);
 }
-- 
2.34.1