module: use strstarts()

Impact: minor cleanup.

I'm not going to neaten anyone else's code, but I'm happy to clean up
my own.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

1 files changed, 4 insertions, 7 deletions

diff --git a/kernel/module.c b/kernel/module.c
index 1a9a3986b136..f6e08b7cff7c 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1673,8 +1673,7 @@ static void layout_sections(struct module *mod,
                         if ((s->sh_flags & masks[m][0]) != masks[m][0]
                             || (s->sh_flags & masks[m][1])
                             || s->sh_entsize != ~0UL
-                            || strncmp(secstrings + s->sh_name,
-                                       ".init", 5) == 0)
+                            || strstarts(secstrings + s->sh_name, ".init"))
                                 continue;
                         s->sh_entsize = get_offset(mod, &mod->core_size, s, i);
                         DEBUGP("\t%s\n", secstrings + s->sh_name);
@@ -1691,8 +1690,7 @@ static void layout_sections(struct module *mod,
                         if ((s->sh_flags & masks[m][0]) != masks[m][0]
                             || (s->sh_flags & masks[m][1])
                             || s->sh_entsize != ~0UL
-                            || strncmp(secstrings + s->sh_name,
-                                       ".init", 5) != 0)
+                            || !strstarts(secstrings + s->sh_name, ".init"))
                                 continue;
                         s->sh_entsize = (get_offset(mod, &mod->init_size, s, i)
                                          | INIT_OFFSET_MASK);
@@ -1825,8 +1823,7 @@ static char elf_type(const Elf_Sym *sym,
                 else
                         return 'b';
         }
-        if (strncmp(secstrings + sechdrs[sym->st_shndx].sh_name,
-                    ".debug", strlen(".debug")) == 0)
+        if (strstarts(secstrings + sechdrs[sym->st_shndx].sh_name, ".debug"))
                 return 'n';
         return '?';
 }
@@ -1952,7 +1949,7 @@ static noinline struct module *load_module(void __user *umod,
                 }
 #ifndef CONFIG_MODULE_UNLOAD
                 /* Don't load .exit sections */
-                if (strncmp(secstrings+sechdrs[i].sh_name, ".exit", 5) == 0)
+                if (strstarts(secstrings+sechdrs[i].sh_name, ".exit"))
                         sechdrs[i].sh_flags &= ~(unsigned long)SHF_ALLOC;
 #endif
                 /* Don't keep __versions around; it's just for loading. */