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authorDenis Cheng <crquan@gmail.com>2008-01-21 12:08:25 +0300
committerRusty Russell <rusty@rustcorp.com.au>2008-01-29 09:13:24 +0300
commit8686c99875f3849047660a5b6d02438443f22ce7 (patch)
tree42eca5ce8533f973553376e4afbe7362608bf01d /kernel/params.c
parent6dd06c9fbe025f542bce4cdb91790c0f91962722 (diff)
downloadlinux-8686c99875f3849047660a5b6d02438443f22ce7.tar.xz
module: fix the module name length in param_sysfs_builtin
the original code use KOBJ_NAME_LEN for built-in module name length, that's defined to 20 in linux/kobject.h, but this is not enough appearntly, many module names are longer than this; #define KOBJ_NAME_LEN 20 another macro is MODULE_NAME_LEN defined in linux/module.h, I think this is enough for module names: #define MODULE_NAME_LEN (64 - sizeof(unsigned long)) Signed-off-by: Denis Cheng <crquan@gmail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'kernel/params.c')
-rw-r--r--kernel/params.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/kernel/params.c b/kernel/params.c
index 67f65ee7211d..42fe5e6126c0 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -376,8 +376,6 @@ int param_get_string(char *buffer, struct kernel_param *kp)
extern struct kernel_param __start___param[], __stop___param[];
-#define MAX_KBUILD_MODNAME KOBJ_NAME_LEN
-
struct param_attribute
{
struct module_attribute mattr;
@@ -587,7 +585,7 @@ static void __init param_sysfs_builtin(void)
{
struct kernel_param *kp, *kp_begin = NULL;
unsigned int i, name_len, count = 0;
- char modname[MAX_KBUILD_MODNAME + 1] = "";
+ char modname[MODULE_NAME_LEN + 1] = "";
for (i=0; i < __stop___param - __start___param; i++) {
char *dot;
@@ -595,12 +593,12 @@ static void __init param_sysfs_builtin(void)
kp = &__start___param[i];
max_name_len =
- min_t(size_t, MAX_KBUILD_MODNAME, strlen(kp->name));
+ min_t(size_t, MODULE_NAME_LEN, strlen(kp->name));
dot = memchr(kp->name, '.', max_name_len);
if (!dot) {
DEBUGP("couldn't find period in first %d characters "
- "of %s\n", MAX_KBUILD_MODNAME, kp->name);
+ "of %s\n", MODULE_NAME_LEN, kp->name);
continue;
}
name_len = dot - kp->name;