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| author | Linus Walleij <linus.walleij@stericsson.com> | 2011-01-05 13:27:04 +0100 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2011-01-24 14:32:52 +1030 |
| commit | b75be4204e7871869b2c268c00783703197aaa7d (patch) | |
| tree | 6667a6d0ca0380bf8f64a499bfcee0db39bdc5a6 /include/linux/moduleparam.h | |
| parent | 3b90a5b292321b2acac3921f77046ae195aef53f (diff) | |
| download | lwn-b75be4204e7871869b2c268c00783703197aaa7d.tar.gz lwn-b75be4204e7871869b2c268c00783703197aaa7d.zip | |
param: add null statement to compiled-in module params
Add an unused struct declaration statement requiring a
terminating semicolon to the compile-in case to provoke an
error if __MODULE_INFO() is used without the terminating
semicolon. Previously MODULE_ALIAS("foo") (no semicolon)
compiled fine if MODULE was not selected.
Cc: Dan Carpenter <error27@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'include/linux/moduleparam.h')
| -rw-r--r-- | include/linux/moduleparam.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h index 112adf8bd47d..07b41951e3fa 100644 --- a/include/linux/moduleparam.h +++ b/include/linux/moduleparam.h @@ -16,15 +16,17 @@ /* Chosen so that structs with an unsigned long line up. */ #define MAX_PARAM_PREFIX_LEN (64 - sizeof(unsigned long)) -#ifdef MODULE #define ___module_cat(a,b) __mod_ ## a ## b #define __module_cat(a,b) ___module_cat(a,b) +#ifdef MODULE #define __MODULE_INFO(tag, name, info) \ static const char __module_cat(name,__LINE__)[] \ __used __attribute__((section(".modinfo"), unused, aligned(1))) \ = __stringify(tag) "=" info #else /* !MODULE */ -#define __MODULE_INFO(tag, name, info) +/* This struct is here for syntactic coherency, it is not used */ +#define __MODULE_INFO(tag, name, info) \ + struct __module_cat(name,__LINE__) {} #endif #define __MODULE_PARM_TYPE(name, _type) \ __MODULE_INFO(parmtype, name##type, #name ":" _type) |