From 0cc2dc4902f425e346d46deeea2352d9fba75375 Mon Sep 17 00:00:00 2001
From: "Mike Rapoport (IBM)" <rppt@kernel.org>
Date: Sun, 5 May 2024 19:06:24 +0300
Subject: arch: make execmem setup available regardless of CONFIG_MODULES
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execmem does not depend on modules, on the contrary modules use
execmem.

To make execmem available when CONFIG_MODULES=n, for instance for
kprobes, split execmem_params initialization out from
arch/*/kernel/module.c and compile it when CONFIG_EXECMEM=y

Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
 arch/arm/kernel/module.c | 43 -------------------------------------------
 1 file changed, 43 deletions(-)

(limited to 'arch/arm/kernel')

diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
index a98fdf6ff26c..677f218f7e84 100644
--- a/arch/arm/kernel/module.c
+++ b/arch/arm/kernel/module.c
@@ -12,57 +12,14 @@
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/elf.h>
-#include <linux/vmalloc.h>
 #include <linux/fs.h>
 #include <linux/string.h>
-#include <linux/gfp.h>
-#include <linux/execmem.h>
 
 #include <asm/sections.h>
 #include <asm/smp_plat.h>
 #include <asm/unwind.h>
 #include <asm/opcodes.h>
 
-#ifdef CONFIG_XIP_KERNEL
-/*
- * The XIP kernel text is mapped in the module area for modules and
- * some other stuff to work without any indirect relocations.
- * MODULES_VADDR is redefined here and not in asm/memory.h to avoid
- * recompiling the whole kernel when CONFIG_XIP_KERNEL is turned on/off.
- */
-#undef MODULES_VADDR
-#define MODULES_VADDR	(((unsigned long)_exiprom + ~PMD_MASK) & PMD_MASK)
-#endif
-
-#ifdef CONFIG_MMU
-static struct execmem_info execmem_info __ro_after_init;
-
-struct execmem_info __init *execmem_arch_setup(void)
-{
-	unsigned long fallback_start = 0, fallback_end = 0;
-
-	if (IS_ENABLED(CONFIG_ARM_MODULE_PLTS)) {
-		fallback_start = VMALLOC_START;
-		fallback_end = VMALLOC_END;
-	}
-
-	execmem_info = (struct execmem_info){
-		.ranges = {
-			[EXECMEM_DEFAULT] = {
-				.start	= MODULES_VADDR,
-				.end	= MODULES_END,
-				.pgprot	= PAGE_KERNEL_EXEC,
-				.alignment = 1,
-				.fallback_start	= fallback_start,
-				.fallback_end	= fallback_end,
-			},
-		},
-	};
-
-	return &execmem_info;
-}
-#endif
-
 bool module_init_section(const char *name)
 {
 	return strstarts(name, ".init") ||
-- 
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