[PATCH v5 15/15] x86/mtrr: remove unused code

From: Juergen Gross
Date: Sat Apr 01 2023 - 02:39:13 EST


mtrr_centaur_report_mcr() isn't used by anyone, so it can be removed.

Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
---
V5:
- new patch
---
arch/x86/include/asm/mtrr.h | 4 ----
arch/x86/kernel/cpu/mtrr/centaur.c | 9 ---------
2 files changed, 13 deletions(-)

diff --git a/arch/x86/include/asm/mtrr.h b/arch/x86/include/asm/mtrr.h
index b17a66da1237..3aced3568e2b 100644
--- a/arch/x86/include/asm/mtrr.h
+++ b/arch/x86/include/asm/mtrr.h
@@ -60,7 +60,6 @@ extern int mtrr_add_page(unsigned long base, unsigned long size,
unsigned int type, bool increment);
extern int mtrr_del(int reg, unsigned long base, unsigned long size);
extern int mtrr_del_page(int reg, unsigned long base, unsigned long size);
-extern void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi);
extern void mtrr_bp_restore(void);
extern int mtrr_trim_uncached_memory(unsigned long end_pfn);
extern int amd_special_default_mtrr(void);
@@ -108,9 +107,6 @@ static inline int mtrr_trim_uncached_memory(unsigned long end_pfn)
{
return 0;
}
-static inline void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi)
-{
-}
#define mtrr_bp_init() do {} while (0)
#define mtrr_bp_restore() do {} while (0)
#define mtrr_disable() do {} while (0)
diff --git a/arch/x86/kernel/cpu/mtrr/centaur.c b/arch/x86/kernel/cpu/mtrr/centaur.c
index 4466ddeb0125..6f6c3ae92943 100644
--- a/arch/x86/kernel/cpu/mtrr/centaur.c
+++ b/arch/x86/kernel/cpu/mtrr/centaur.c
@@ -45,15 +45,6 @@ centaur_get_free_region(unsigned long base, unsigned long size, int replace_reg)
return -ENOSPC;
}

-/*
- * Report boot time MCR setups
- */
-void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi)
-{
- centaur_mcr[mcr].low = lo;
- centaur_mcr[mcr].high = hi;
-}
-
static void
centaur_get_mcr(unsigned int reg, unsigned long *base,
unsigned long *size, mtrr_type * type)
--
2.35.3