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| author | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2025-08-07 10:55:19 +0300 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2025-08-07 10:55:19 +0300 |
| commit | 0074281bb6316108e0cff094bd4db78ab3eee236 (patch) | |
| tree | 9b5eeb12eed9fd2a8aa329043da7f5150ceb938c /include/linux/moduleparam.h | |
| parent | 63c7bc53a35e785accdc2ceab8f72d94501931ab (diff) | |
| parent | 6e64f4580381e32c06ee146ca807c555b8f73e24 (diff) | |
| download | linux-0074281bb6316108e0cff094bd4db78ab3eee236.tar.xz | |
Merge commit '6e64f4580381e32c06ee146ca807c555b8f73e24' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into gpio/for-next
Diffstat (limited to 'include/linux/moduleparam.h')
| -rw-r--r-- | include/linux/moduleparam.h | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h index bfb85fd13e1f..3a25122d83e2 100644 --- a/include/linux/moduleparam.h +++ b/include/linux/moduleparam.h @@ -6,6 +6,13 @@ #include <linux/stringify.h> #include <linux/kernel.h> +/* + * The maximum module name length, including the NUL byte. + * Chosen so that structs with an unsigned long line up, specifically + * modversion_info. + */ +#define __MODULE_NAME_LEN (64 - sizeof(unsigned long)) + /* You can override this manually, but generally this should match the module name. */ #ifdef MODULE @@ -17,21 +24,19 @@ #define __MODULE_INFO_PREFIX KBUILD_MODNAME "." #endif -/* Chosen so that structs with an unsigned long line up. */ -#define MAX_PARAM_PREFIX_LEN (64 - sizeof(unsigned long)) - -#define __MODULE_INFO(tag, name, info) \ - static const char __UNIQUE_ID(name)[] \ +/* Generic info of form tag = "info" */ +#define MODULE_INFO(tag, info) \ + static const char __UNIQUE_ID(modinfo)[] \ __used __section(".modinfo") __aligned(1) \ = __MODULE_INFO_PREFIX __stringify(tag) "=" info #define __MODULE_PARM_TYPE(name, _type) \ - __MODULE_INFO(parmtype, name##type, #name ":" _type) + MODULE_INFO(parmtype, #name ":" _type) /* One for each parameter, describing how to use it. Some files do multiple of these per line, so can't just use MODULE_INFO. */ #define MODULE_PARM_DESC(_parm, desc) \ - __MODULE_INFO(parm, _parm, #_parm ":" desc) + MODULE_INFO(parm, #_parm ":" desc) struct kernel_param; @@ -282,10 +287,9 @@ struct kparam_array #define __moduleparam_const const #endif -/* This is the fundamental function for registering boot/module - parameters. */ +/* This is the fundamental function for registering boot/module parameters. */ #define __module_param_call(prefix, name, ops, arg, perm, level, flags) \ - /* Default value instead of permissions? */ \ + static_assert(sizeof(""prefix) - 1 <= __MODULE_NAME_LEN); \ static const char __param_str_##name[] = prefix #name; \ static struct kernel_param __moduleparam_const __param_##name \ __used __section("__param") \ |