Sean noted that scripts/Makefile.lib:name-fix-token rule will mangle the module name with s/-/_/g. Since this happens late in the build, only the kernel needs to bother with this, the modpost tool still sees the original name.
Showing the changes to kernel/module (1 of 1 file). Show all
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| @@ -169,6 +169,30 @@ static inline void add_taint_module(struct module *mod, unsigned flag, · 168 unmodified lines | |||
| 169 | set_bit(flag, &mod->taints); | 169 | set_bit(flag, &mod->taints); |
| 170 | } | 170 | } |
| 171 | 171 | ||
| 172 | /* | ||
| 173 | * Like strncmp(), except s/-/_/g as per scripts/Makefile.lib:name-fix-token rule. | ||
| 174 | */ | ||
| 175 | static int mod_strncmp(const char *str_a, const char *str_b, size_t n) | ||
| 176 | { | ||
| 177 | for (int i = 0; i < n; i++) { | ||
| 178 | char a = str_a[i]; | ||
| 179 | char b = str_b[i]; | ||
| 180 | int d; | ||
| 181 | |||
| 182 | if (a == '-') a = '_'; | ||
| 183 | if (b == '-') b = '_'; | ||
| 184 | |||
| 185 | d = a - b; | ||
| 186 | if (d) | ||
| 187 | return d; | ||
| 188 | |||
| 189 | if (!a) | ||
| 190 | break; | ||
| 191 | } | ||
| 192 | |||
| 193 | return 0; | ||
| 194 | } | ||
| 195 | |||
| 172 | /* | 196 | /* |
| 173 | * A thread that wants to hold a reference to a module only while it | 197 | * A thread that wants to hold a reference to a module only while it |
| 174 | * is running can call this to safely exit. | 198 | * is running can call this to safely exit. |
| @@ -1116,7 +1140,7 @@ static bool verify_module_namespace(const char *namespace, const char *modname) · 941 unmodified lines | |||
| 1116 | if (*sep) | 1140 | if (*sep) |
| 1117 | sep++; | 1141 | sep++; |
| 1118 | 1142 | ||
| 1119 | if (strncmp(namespace, modname, len) == 0 && (glob || len == modlen)) | 1143 | if (mod_strncmp(namespace, modname, len) == 0 && (glob || len == modlen)) |
| 1120 | return true; | 1144 | return true; |
| 1121 | } | 1145 | } |
| 1122 | 1146 | ||