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-rw-r--r--kernel/module.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/kernel/module.c b/kernel/module.c
index e96b8ed1cb6a..f82386bd9ee9 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1010,6 +1010,12 @@ static const struct kernel_symbol *resolve_symbol(Elf_Shdr *sechdrs,
1010 * J. Corbet <corbet@lwn.net> 1010 * J. Corbet <corbet@lwn.net>
1011 */ 1011 */
1012#if defined(CONFIG_KALLSYMS) && defined(CONFIG_SYSFS) 1012#if defined(CONFIG_KALLSYMS) && defined(CONFIG_SYSFS)
1013
1014static inline bool sect_empty(const Elf_Shdr *sect)
1015{
1016 return !(sect->sh_flags & SHF_ALLOC) || sect->sh_size == 0;
1017}
1018
1013struct module_sect_attr 1019struct module_sect_attr
1014{ 1020{
1015 struct module_attribute mattr; 1021 struct module_attribute mattr;
@@ -1051,8 +1057,7 @@ static void add_sect_attrs(struct module *mod, unsigned int nsect,
1051 1057
1052 /* Count loaded sections and allocate structures */ 1058 /* Count loaded sections and allocate structures */
1053 for (i = 0; i < nsect; i++) 1059 for (i = 0; i < nsect; i++)
1054 if (sechdrs[i].sh_flags & SHF_ALLOC 1060 if (!sect_empty(&sechdrs[i]))
1055 && sechdrs[i].sh_size)
1056 nloaded++; 1061 nloaded++;
1057 size[0] = ALIGN(sizeof(*sect_attrs) 1062 size[0] = ALIGN(sizeof(*sect_attrs)
1058 + nloaded * sizeof(sect_attrs->attrs[0]), 1063 + nloaded * sizeof(sect_attrs->attrs[0]),
@@ -1070,9 +1075,7 @@ static void add_sect_attrs(struct module *mod, unsigned int nsect,
1070 sattr = &sect_attrs->attrs[0]; 1075 sattr = &sect_attrs->attrs[0];
1071 gattr = &sect_attrs->grp.attrs[0]; 1076 gattr = &sect_attrs->grp.attrs[0];
1072 for (i = 0; i < nsect; i++) { 1077 for (i = 0; i < nsect; i++) {
1073 if (! (sechdrs[i].sh_flags & SHF_ALLOC)) 1078 if (sect_empty(&sechdrs[i]))
1074 continue;
1075 if (!sechdrs[i].sh_size)
1076 continue; 1079 continue;
1077 sattr->address = sechdrs[i].sh_addr; 1080 sattr->address = sechdrs[i].sh_addr;
1078 sattr->name = kstrdup(secstrings + sechdrs[i].sh_name, 1081 sattr->name = kstrdup(secstrings + sechdrs[i].sh_name,
@@ -1156,7 +1159,7 @@ static void add_notes_attrs(struct module *mod, unsigned int nsect,
1156 /* Count notes sections and allocate structures. */ 1159 /* Count notes sections and allocate structures. */
1157 notes = 0; 1160 notes = 0;
1158 for (i = 0; i < nsect; i++) 1161 for (i = 0; i < nsect; i++)
1159 if ((sechdrs[i].sh_flags & SHF_ALLOC) && 1162 if (!sect_empty(&sechdrs[i]) &&
1160 (sechdrs[i].sh_type == SHT_NOTE)) 1163 (sechdrs[i].sh_type == SHT_NOTE))
1161 ++notes; 1164 ++notes;
1162 1165
@@ -1172,7 +1175,7 @@ static void add_notes_attrs(struct module *mod, unsigned int nsect,
1172 notes_attrs->notes = notes; 1175 notes_attrs->notes = notes;
1173 nattr = &notes_attrs->attrs[0]; 1176 nattr = &notes_attrs->attrs[0];
1174 for (loaded = i = 0; i < nsect; ++i) { 1177 for (loaded = i = 0; i < nsect; ++i) {
1175 if (!(sechdrs[i].sh_flags & SHF_ALLOC)) 1178 if (sect_empty(&sechdrs[i]))
1176 continue; 1179 continue;
1177 if (sechdrs[i].sh_type == SHT_NOTE) { 1180 if (sechdrs[i].sh_type == SHT_NOTE) {
1178 nattr->attr.name = mod->sect_attrs->attrs[loaded].name; 1181 nattr->attr.name = mod->sect_attrs->attrs[loaded].name;