No functional change.
This patch makes it possible to move non-essential code
out of core module code.
Signed-off-by: Aaron Tomlin <[email protected]>
---
kernel/module/internal.h | 21 +++++++++++++++++++++
kernel/module/main.c | 22 ++--------------------
2 files changed, 23 insertions(+), 20 deletions(-)
diff --git a/kernel/module/internal.h b/kernel/module/internal.h
index 8c381c99062f..ea8c4c02614c 100644
--- a/kernel/module/internal.h
+++ b/kernel/module/internal.h
@@ -7,6 +7,27 @@
#include <linux/elf.h>
#include <asm/module.h>
+#include <linux/mutex.h>
+
+#ifndef ARCH_SHF_SMALL
+#define ARCH_SHF_SMALL 0
+#endif
+
+/* If this is set, the section belongs in the init part of the module */
+#define INIT_OFFSET_MASK (1UL << (BITS_PER_LONG - 1))
+/* Maximum number of characters written by module_flags() */
+#define MODULE_FLAGS_BUF_SIZE (TAINT_FLAGS_COUNT + 4)
+
+extern struct mutex module_mutex;
+extern struct list_head modules;
+
+/* Provided by the linker */
+extern const struct kernel_symbol __start___ksymtab[];
+extern const struct kernel_symbol __stop___ksymtab[];
+extern const struct kernel_symbol __start___ksymtab_gpl[];
+extern const struct kernel_symbol __stop___ksymtab_gpl[];
+extern const s32 __start___kcrctab[];
+extern const s32 __start___kcrctab_gpl[];
struct load_info {
const char *name;
diff --git a/kernel/module/main.c b/kernel/module/main.c
index 34a2b0cf3c3e..5f5e21f972dd 100644
--- a/kernel/module/main.c
+++ b/kernel/module/main.c
@@ -63,10 +63,6 @@
#define CREATE_TRACE_POINTS
#include <trace/events/module.h>
-#ifndef ARCH_SHF_SMALL
-#define ARCH_SHF_SMALL 0
-#endif
-
/*
* Modules' sections will be aligned on page boundaries
* to ensure complete separation of code and data, but
@@ -78,9 +74,6 @@
# define debug_align(X) (X)
#endif
-/* If this is set, the section belongs in the init part of the module */
-#define INIT_OFFSET_MASK (1UL << (BITS_PER_LONG-1))
-
/*
* Mutex protects:
* 1) List of modules (also safely readable with preempt_disable),
@@ -88,8 +81,8 @@
* 3) module_addr_min/module_addr_max.
* (delete and add uses RCU list operations).
*/
-static DEFINE_MUTEX(module_mutex);
-static LIST_HEAD(modules);
+DEFINE_MUTEX(module_mutex);
+LIST_HEAD(modules);
/* Work queue for freeing init sections in success case */
static void do_free_init(struct work_struct *w);
@@ -408,14 +401,6 @@ static __maybe_unused void *any_section_objs(const struct load_info *info,
return (void *)info->sechdrs[sec].sh_addr;
}
-/* Provided by the linker */
-extern const struct kernel_symbol __start___ksymtab[];
-extern const struct kernel_symbol __stop___ksymtab[];
-extern const struct kernel_symbol __start___ksymtab_gpl[];
-extern const struct kernel_symbol __stop___ksymtab_gpl[];
-extern const s32 __start___kcrctab[];
-extern const s32 __start___kcrctab_gpl[];
-
#ifndef CONFIG_MODVERSIONS
#define symversion(base, idx) NULL
#else
@@ -4542,9 +4527,6 @@ static void cfi_cleanup(struct module *mod)
#endif
}
-/* Maximum number of characters written by module_flags() */
-#define MODULE_FLAGS_BUF_SIZE (TAINT_FLAGS_COUNT + 4)
-
/* Keep in sync with MODULE_FLAGS_BUF_SIZE !!! */
static char *module_flags(struct module *mod, char *buf)
{
--
2.34.1
Le 22/02/2022 à 15:12, Aaron Tomlin a écrit :
> No functional change.
>
> This patch makes it possible to move non-essential code
> out of core module code.
>
> Signed-off-by: Aaron Tomlin <[email protected]>
Reviewed-by: Christophe Leroy <[email protected]>
> ---
> kernel/module/internal.h | 21 +++++++++++++++++++++
> kernel/module/main.c | 22 ++--------------------
> 2 files changed, 23 insertions(+), 20 deletions(-)
>
> diff --git a/kernel/module/internal.h b/kernel/module/internal.h
> index 8c381c99062f..ea8c4c02614c 100644
> --- a/kernel/module/internal.h
> +++ b/kernel/module/internal.h
> @@ -7,6 +7,27 @@
>
> #include <linux/elf.h>
> #include <asm/module.h>
> +#include <linux/mutex.h>
> +
> +#ifndef ARCH_SHF_SMALL
> +#define ARCH_SHF_SMALL 0
> +#endif
> +
> +/* If this is set, the section belongs in the init part of the module */
> +#define INIT_OFFSET_MASK (1UL << (BITS_PER_LONG - 1))
> +/* Maximum number of characters written by module_flags() */
> +#define MODULE_FLAGS_BUF_SIZE (TAINT_FLAGS_COUNT + 4)
> +
> +extern struct mutex module_mutex;
> +extern struct list_head modules;
> +
> +/* Provided by the linker */
> +extern const struct kernel_symbol __start___ksymtab[];
> +extern const struct kernel_symbol __stop___ksymtab[];
> +extern const struct kernel_symbol __start___ksymtab_gpl[];
> +extern const struct kernel_symbol __stop___ksymtab_gpl[];
> +extern const s32 __start___kcrctab[];
> +extern const s32 __start___kcrctab_gpl[];
>
> struct load_info {
> const char *name;
> diff --git a/kernel/module/main.c b/kernel/module/main.c
> index 34a2b0cf3c3e..5f5e21f972dd 100644
> --- a/kernel/module/main.c
> +++ b/kernel/module/main.c
> @@ -63,10 +63,6 @@
> #define CREATE_TRACE_POINTS
> #include <trace/events/module.h>
>
> -#ifndef ARCH_SHF_SMALL
> -#define ARCH_SHF_SMALL 0
> -#endif
> -
> /*
> * Modules' sections will be aligned on page boundaries
> * to ensure complete separation of code and data, but
> @@ -78,9 +74,6 @@
> # define debug_align(X) (X)
> #endif
>
> -/* If this is set, the section belongs in the init part of the module */
> -#define INIT_OFFSET_MASK (1UL << (BITS_PER_LONG-1))
> -
> /*
> * Mutex protects:
> * 1) List of modules (also safely readable with preempt_disable),
> @@ -88,8 +81,8 @@
> * 3) module_addr_min/module_addr_max.
> * (delete and add uses RCU list operations).
> */
> -static DEFINE_MUTEX(module_mutex);
> -static LIST_HEAD(modules);
> +DEFINE_MUTEX(module_mutex);
> +LIST_HEAD(modules);
>
> /* Work queue for freeing init sections in success case */
> static void do_free_init(struct work_struct *w);
> @@ -408,14 +401,6 @@ static __maybe_unused void *any_section_objs(const struct load_info *info,
> return (void *)info->sechdrs[sec].sh_addr;
> }
>
> -/* Provided by the linker */
> -extern const struct kernel_symbol __start___ksymtab[];
> -extern const struct kernel_symbol __stop___ksymtab[];
> -extern const struct kernel_symbol __start___ksymtab_gpl[];
> -extern const struct kernel_symbol __stop___ksymtab_gpl[];
> -extern const s32 __start___kcrctab[];
> -extern const s32 __start___kcrctab_gpl[];
> -
> #ifndef CONFIG_MODVERSIONS
> #define symversion(base, idx) NULL
> #else
> @@ -4542,9 +4527,6 @@ static void cfi_cleanup(struct module *mod)
> #endif
> }
>
> -/* Maximum number of characters written by module_flags() */
> -#define MODULE_FLAGS_BUF_SIZE (TAINT_FLAGS_COUNT + 4)
> -
> /* Keep in sync with MODULE_FLAGS_BUF_SIZE !!! */
> static char *module_flags(struct module *mod, char *buf)
> {