linux-kernel - [PATCH v2 08/29] x86/cacheinfo: Constify _cpuid4_info

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Message-ID: <20250317164745.4754-9-darwi@linutronix.de>
Date: Mon, 17 Mar 2025 17:47:24 +0100
From: "Ahmed S. Darwish" <darwi@...utronix.de>
To: Ingo Molnar <mingo@...hat.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Borislav Petkov <bp@...en8.de>
Cc: Thomas Gleixner <tglx@...utronix.de>,
	Andrew Cooper <andrew.cooper3@...rix.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	John Ogness <john.ogness@...utronix.de>,
	x86@...nel.org,
	x86-cpuid@...ts.linux.dev,
	LKML <linux-kernel@...r.kernel.org>,
	"Ahmed S. Darwish" <darwi@...utronix.de>
Subject: [PATCH v2 08/29] x86/cacheinfo: Constify _cpuid4_info_regs instances

_cpuid4_info_regs instances are passed through a large number of
functions at cacheinfo.c.  For clarity, constify the instance parameters
where _cpuid4_info_regs is only read from.

Signed-off-by: Ahmed S. Darwish <darwi@...utronix.de>
---
 arch/x86/kernel/cpu/cacheinfo.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/cpu/cacheinfo.c b/arch/x86/kernel/cpu/cacheinfo.c
index 2656f37ef536..8368eb26c909 100644
--- a/arch/x86/kernel/cpu/cacheinfo.c
+++ b/arch/x86/kernel/cpu/cacheinfo.c
@@ -840,7 +840,7 @@ void init_intel_cacheinfo(struct cpuinfo_x86 *c)
 }
 
 static int __cache_amd_cpumap_setup(unsigned int cpu, int index,
-				    struct _cpuid4_info_regs *base)
+				    const struct _cpuid4_info_regs *base)
 {
 	struct cpu_cacheinfo *this_cpu_ci;
 	struct cacheinfo *ci;
@@ -897,7 +897,7 @@ static int __cache_amd_cpumap_setup(unsigned int cpu, int index,
 }
 
 static void __cache_cpumap_setup(unsigned int cpu, int index,
-				 struct _cpuid4_info_regs *base)
+				 const struct _cpuid4_info_regs *base)
 {
 	struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
 	struct cacheinfo *ci, *sibling_ci;
@@ -931,7 +931,8 @@ static void __cache_cpumap_setup(unsigned int cpu, int index,
 		}
 }
 
-static void ci_info_init(struct cacheinfo *ci, struct _cpuid4_info_regs *base)
+static void ci_info_init(struct cacheinfo *ci,
+			 const struct _cpuid4_info_regs *base)
 {
 	ci->id = base->id;
 	ci->attributes = CACHE_ID;
-- 
2.48.1