linux-kernel - [PATCH 2/5] MIPS: cm: Prefix probe functions with _

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Message-Id: <20240507-cm_probe-v1-2-11dbfd598f3c@flygoat.com>
Date: Tue, 07 May 2024 10:01:50 +0100
From: Jiaxun Yang <jiaxun.yang@...goat.com>
To: Paul Burton <paulburton@...nel.org>, 
 Thomas Bogendoerfer <tsbogend@...ha.franken.de>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org, 
 devicetree@...r.kernel.org, Jiaxun Yang <jiaxun.yang@...goat.com>
Subject: [PATCH 2/5] MIPS: cm: Prefix probe functions with __init

Those functions are only used at boot time.
Prefix them with __init so they can be discarded after boot.

Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com>
---
 arch/mips/include/asm/mips-cm.h | 4 ++--
 arch/mips/kernel/mips-cm.c      | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/mips/include/asm/mips-cm.h b/arch/mips/include/asm/mips-cm.h
index c2930a75b7e4..5292b516d60b 100644
--- a/arch/mips/include/asm/mips-cm.h
+++ b/arch/mips/include/asm/mips-cm.h
@@ -30,7 +30,7 @@ extern void __iomem *mips_cm_l2sync_base;
  * and may be overridden by platforms which determine this address in a
  * different way by defining a function with the same prototype.
  */
-extern phys_addr_t mips_cm_phys_base(void);
+extern phys_addr_t __init mips_cm_phys_base(void);
 
 /**
  * mips_cm_l2sync_phys_base - retrieve the physical base address of the CM
@@ -43,7 +43,7 @@ extern phys_addr_t mips_cm_phys_base(void);
  * determine this address in a different way by defining a function with the
  * same prototype.
  */
-extern phys_addr_t mips_cm_l2sync_phys_base(void);
+extern phys_addr_t  __init mips_cm_l2sync_phys_base(void);
 
 /*
  * mips_cm_is64 - determine CM register width
diff --git a/arch/mips/kernel/mips-cm.c b/arch/mips/kernel/mips-cm.c
index 3a115fab5573..dddc9428fe58 100644
--- a/arch/mips/kernel/mips-cm.c
+++ b/arch/mips/kernel/mips-cm.c
@@ -179,7 +179,7 @@ static char *cm3_causes[32] = {
 static DEFINE_PER_CPU_ALIGNED(spinlock_t, cm_core_lock);
 static DEFINE_PER_CPU_ALIGNED(unsigned long, cm_core_lock_flags);
 
-phys_addr_t __weak mips_cm_phys_base(void)
+phys_addr_t __init __weak mips_cm_phys_base(void)
 {
 	unsigned long cmgcr;
 
@@ -198,7 +198,7 @@ phys_addr_t __weak mips_cm_phys_base(void)
 	return (cmgcr & MIPS_CMGCRF_BASE) << (36 - 32);
 }
 
-phys_addr_t __weak mips_cm_l2sync_phys_base(void)
+phys_addr_t __init __weak mips_cm_l2sync_phys_base(void)
 {
 	u32 base_reg;
 
@@ -214,7 +214,7 @@ phys_addr_t __weak mips_cm_l2sync_phys_base(void)
 	return mips_cm_phys_base() + MIPS_CM_GCR_SIZE;
 }
 
-static void mips_cm_probe_l2sync(void)
+static void __init mips_cm_probe_l2sync(void)
 {
 	unsigned major_rev;
 	phys_addr_t addr;
@@ -237,7 +237,7 @@ static void mips_cm_probe_l2sync(void)
 	mips_cm_l2sync_base = ioremap(addr, MIPS_CM_L2SYNC_SIZE);
 }
 
-int mips_cm_probe(void)
+int __init mips_cm_probe(void)
 {
 	phys_addr_t addr;
 	u32 base_reg;

-- 
2.34.1