aboutsummaryrefslogtreecommitdiffstats
path: root/kernel/module
diff options
context:
space:
mode:
authorLuis Chamberlain <mcgrof@kernel.org>2023-03-19 14:27:35 -0700
committerLuis Chamberlain <mcgrof@kernel.org>2023-03-24 11:05:15 -0700
commitb66973b82d4426b318f78a20c6b39ddd977a508a (patch)
tree7601e2450b85da025fa59994c6285f0c8da8c405 /kernel/module
parent3c17655ab13704582fe25e8ea3200a9b2f8bf20a (diff)
downloadlinux-b66973b82d4426b318f78a20c6b39ddd977a508a.tar.gz
module: move get_modinfo() helpers all above
Instead of forward declaring routines for get_modinfo() just move everything up. This makes no functional changes. Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Diffstat (limited to 'kernel/module')
-rw-r--r--kernel/module/main.c100
1 files changed, 48 insertions, 52 deletions
diff --git a/kernel/module/main.c b/kernel/module/main.c
index b4759f1695b70..1e739f5341004 100644
--- a/kernel/module/main.c
+++ b/kernel/module/main.c
@@ -1016,9 +1016,55 @@ int try_to_force_load(struct module *mod, const char *reason)
#endif
}
-static char *get_modinfo(const struct load_info *info, const char *tag);
+/* Parse tag=value strings from .modinfo section */
+static char *next_string(char *string, unsigned long *secsize)
+{
+ /* Skip non-zero chars */
+ while (string[0]) {
+ string++;
+ if ((*secsize)-- <= 1)
+ return NULL;
+ }
+
+ /* Skip any zero padding. */
+ while (!string[0]) {
+ string++;
+ if ((*secsize)-- <= 1)
+ return NULL;
+ }
+ return string;
+}
+
static char *get_next_modinfo(const struct load_info *info, const char *tag,
- char *prev);
+ char *prev)
+{
+ char *p;
+ unsigned int taglen = strlen(tag);
+ Elf_Shdr *infosec = &info->sechdrs[info->index.info];
+ unsigned long size = infosec->sh_size;
+
+ /*
+ * get_modinfo() calls made before rewrite_section_headers()
+ * must use sh_offset, as sh_addr isn't set!
+ */
+ char *modinfo = (char *)info->hdr + infosec->sh_offset;
+
+ if (prev) {
+ size -= prev - modinfo;
+ modinfo = next_string(prev, &size);
+ }
+
+ for (p = modinfo; p; p = next_string(p, &size)) {
+ if (strncmp(p, tag, taglen) == 0 && p[taglen] == '=')
+ return p + taglen + 1;
+ }
+ return NULL;
+}
+
+static char *get_modinfo(const struct load_info *info, const char *tag)
+{
+ return get_next_modinfo(info, tag, NULL);
+}
static int verify_namespace_is_imported(const struct load_info *info,
const struct kernel_symbol *sym,
@@ -1544,56 +1590,6 @@ static void set_license(struct module *mod, const char *license)
}
}
-/* Parse tag=value strings from .modinfo section */
-static char *next_string(char *string, unsigned long *secsize)
-{
- /* Skip non-zero chars */
- while (string[0]) {
- string++;
- if ((*secsize)-- <= 1)
- return NULL;
- }
-
- /* Skip any zero padding. */
- while (!string[0]) {
- string++;
- if ((*secsize)-- <= 1)
- return NULL;
- }
- return string;
-}
-
-static char *get_next_modinfo(const struct load_info *info, const char *tag,
- char *prev)
-{
- char *p;
- unsigned int taglen = strlen(tag);
- Elf_Shdr *infosec = &info->sechdrs[info->index.info];
- unsigned long size = infosec->sh_size;
-
- /*
- * get_modinfo() calls made before rewrite_section_headers()
- * must use sh_offset, as sh_addr isn't set!
- */
- char *modinfo = (char *)info->hdr + infosec->sh_offset;
-
- if (prev) {
- size -= prev - modinfo;
- modinfo = next_string(prev, &size);
- }
-
- for (p = modinfo; p; p = next_string(p, &size)) {
- if (strncmp(p, tag, taglen) == 0 && p[taglen] == '=')
- return p + taglen + 1;
- }
- return NULL;
-}
-
-static char *get_modinfo(const struct load_info *info, const char *tag)
-{
- return get_next_modinfo(info, tag, NULL);
-}
-
static void setup_modinfo(struct module *mod, struct load_info *info)
{
struct module_attribute *attr;