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/loongarch/kernel/module.c | 19 -------------------
 arch/loongarch/mm/init.c       | 21 +++++++++++++++++++++
 2 files changed, 21 insertions(+), 19 deletions(-)

(limited to 'arch/loongarch')

diff --git a/arch/loongarch/kernel/module.c b/arch/loongarch/kernel/module.c
index ca6dd7ea1610..36d6d9eeb7c7 100644
--- a/arch/loongarch/kernel/module.c
+++ b/arch/loongarch/kernel/module.c
@@ -18,7 +18,6 @@
 #include <linux/ftrace.h>
 #include <linux/string.h>
 #include <linux/kernel.h>
-#include <linux/execmem.h>
 #include <asm/alternative.h>
 #include <asm/inst.h>
 #include <asm/unwind.h>
@@ -491,24 +490,6 @@ int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
 	return 0;
 }
 
-static struct execmem_info execmem_info __ro_after_init;
-
-struct execmem_info __init *execmem_arch_setup(void)
-{
-	execmem_info = (struct execmem_info){
-		.ranges = {
-			[EXECMEM_DEFAULT] = {
-				.start	= MODULES_VADDR,
-				.end	= MODULES_END,
-				.pgprot	= PAGE_KERNEL,
-				.alignment = 1,
-			},
-		},
-	};
-
-	return &execmem_info;
-}
-
 static void module_init_ftrace_plt(const Elf_Ehdr *hdr,
 				   const Elf_Shdr *sechdrs, struct module *mod)
 {
diff --git a/arch/loongarch/mm/init.c b/arch/loongarch/mm/init.c
index 4dd53427f657..bf789d114c2d 100644
--- a/arch/loongarch/mm/init.c
+++ b/arch/loongarch/mm/init.c
@@ -24,6 +24,7 @@
 #include <linux/gfp.h>
 #include <linux/hugetlb.h>
 #include <linux/mmzone.h>
+#include <linux/execmem.h>
 
 #include <asm/asm-offsets.h>
 #include <asm/bootinfo.h>
@@ -248,3 +249,23 @@ EXPORT_SYMBOL(invalid_pmd_table);
 #endif
 pte_t invalid_pte_table[PTRS_PER_PTE] __page_aligned_bss;
 EXPORT_SYMBOL(invalid_pte_table);
+
+#ifdef CONFIG_EXECMEM
+static struct execmem_info execmem_info __ro_after_init;
+
+struct execmem_info __init *execmem_arch_setup(void)
+{
+	execmem_info = (struct execmem_info){
+		.ranges = {
+			[EXECMEM_DEFAULT] = {
+				.start	= MODULES_VADDR,
+				.end	= MODULES_END,
+				.pgprot	= PAGE_KERNEL,
+				.alignment = 1,
+			},
+		},
+	};
+
+	return &execmem_info;
+}
+#endif /* CONFIG_EXECMEM */
-- 
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