On Saturday 28 February 2015 10:58 PM, Lucas De Marchi wrote: > On Thu, Feb 19, 2015 at 12:35 PM, Harish Jenny Kandiga Nagaraj > <harish_kandiga@xxxxxxxxxx> wrote: >> On Thursday 19 February 2015 07:32 PM, Harish Jenny Kandiga Nagaraj wrote: >>> On Thursday 19 February 2015 06:13 PM, Lucas De Marchi wrote: >>>> On Thu, Feb 19, 2015 at 10:32 AM, Harish Jenny Kandiga Nagaraj >>> diff --git a/libkmod/libkmod-internal.h b/libkmod/libkmod-internal.h >>> index 417f232..f6ffd3e 100644 >>> --- a/libkmod/libkmod-internal.h >>> +++ b/libkmod/libkmod-internal.h >>> @@ -46,6 +46,13 @@ static _always_inline_ _printf_format_(2, 3) void >>> # endif >>> #endif >>> >>> +/* Flags to kmod_builtin_status() */ >>> +enum kmod_builtin_status { >>> + KMOD_BUILTIN_UNKNOWN = 0, >>> + KMOD_BUILTIN_NO = 1, >>> + KMOD_BUILTIN_YES = 2 >>> +}; >>> + >>> void kmod_log(const struct kmod_ctx *ctx, >>> int priority, const char *file, int line, const char *fn, >>> const char *format, ...) __attribute__((format(printf, 6, 7))) __attribute__((nonnull(1, 3, 5))); >>> @@ -92,6 +99,7 @@ int kmod_lookup_alias_from_symbols_file(struct kmod_ctx *ctx, const char *name, >>> int kmod_lookup_alias_from_aliases_file(struct kmod_ctx *ctx, const char *name, struct kmod_list **list) __attribute__((nonnull(1, 2, 3))); >>> int kmod_lookup_alias_from_moddep_file(struct kmod_ctx *ctx, const char *name, struct kmod_list **list) __attribute__((nonnull(1, 2, 3))); >>> int kmod_lookup_alias_from_builtin_file(struct kmod_ctx *ctx, const char *name, struct kmod_list **list) __attribute__((nonnull(1, 2, 3))); >>> +int kmod_just_lookup_alias_from_builtin_file(struct kmod_ctx *ctx, const char *name)__attribute__((nonnull(1, 2))); >>> int kmod_lookup_alias_from_commands(struct kmod_ctx *ctx, const char *name, struct kmod_list **list) __attribute__((nonnull(1, 2, 3))); >>> void kmod_set_modules_visited(struct kmod_ctx *ctx, bool visited) __attribute__((nonnull((1)))); >>> void kmod_set_modules_required(struct kmod_ctx *ctx, bool required) __attribute__((nonnull((1)))); >>> @@ -143,9 +151,9 @@ int kmod_module_parse_depline(struct kmod_module *mod, char *line) __attribute__ >>> void kmod_module_set_install_commands(struct kmod_module *mod, const char *cmd) __attribute__((nonnull(1))); >>> void kmod_module_set_remove_commands(struct kmod_module *mod, const char *cmd) __attribute__((nonnull(1))); >>> void kmod_module_set_visited(struct kmod_module *mod, bool visited) __attribute__((nonnull(1))); >>> -void kmod_module_set_builtin(struct kmod_module *mod, bool builtin) __attribute__((nonnull((1)))); >>> +void kmod_module_set_builtin(struct kmod_module *mod, enum kmod_builtin_status builtin) __attribute__((nonnull((1)))); >>> void kmod_module_set_required(struct kmod_module *mod, bool required) __attribute__((nonnull(1))); >>> - >>> +bool kmod_module_is_builtin(const struct kmod_module *mod); >>> >>> /* libkmod-file.c */ >>> struct kmod_file *kmod_file_open(const struct kmod_ctx *ctx, const char *filename) _must_check_ __attribute__((nonnull(1,2))); >>> diff --git a/libkmod/libkmod-module.c b/libkmod/libkmod-module.c >>> index 19bb2ed..6b2f2f1 100644 >>> --- a/libkmod/libkmod-module.c >>> +++ b/libkmod/libkmod-module.c >>> @@ -98,7 +98,7 @@ struct kmod_module { >>> * is set. There's nothing much useful one can do with such a >>> * "module", except knowing it's builtin. >>> */ >>> - bool builtin : 1; >>> + enum kmod_builtin_status builtin; >>> }; >>> >>> static inline const char *path_join(const char *path, size_t prefixlen, >>> @@ -210,7 +210,7 @@ void kmod_module_set_visited(struct kmod_module *mod, bool visited) >>> mod->visited = visited; >>> } >>> >>> -void kmod_module_set_builtin(struct kmod_module *mod, bool builtin) >>> +void kmod_module_set_builtin(struct kmod_module *mod, enum kmod_builtin_status builtin) >>> { >>> mod->builtin = builtin; >>> } >>> @@ -220,6 +220,15 @@ void kmod_module_set_required(struct kmod_module *mod, bool required) >>> mod->required = required; >>> } >>> >>> +bool kmod_module_is_builtin(const struct kmod_module *mod) >>> +{ >>> + int builtin = mod->builtin; >>> + >>> + if (builtin == KMOD_BUILTIN_UNKNOWN) >>> + builtin = kmod_just_lookup_alias_from_builtin_file(mod->ctx, mod->name); >>> + >>> + return mod->builtin == KMOD_BUILTIN_YES; >>> +} >>> /* >>> * Memory layout with alias: >>> * >>> @@ -924,7 +933,7 @@ KMOD_EXPORT int kmod_module_apply_filter(const struct kmod_ctx *ctx, >>> module_is_blacklisted(mod)) >>> continue; >>> >>> - if ((filter_type & KMOD_FILTER_BUILTIN) && mod->builtin) >>> + if ((filter_type & KMOD_FILTER_BUILTIN) && kmod_module_is_builtin(mod)) >>> continue; >>> >>> node = kmod_list_append(*output, mod); >>> @@ -1713,7 +1722,7 @@ KMOD_EXPORT int kmod_module_get_initstate(const struct kmod_module *mod) >>> if (mod == NULL) >>> return -ENOENT; >>> >>> - if (mod->builtin) >>> + if (kmod_module_is_builtin(mod)) >>> return KMOD_MODULE_BUILTIN; >>> >>> pathlen = snprintf(path, sizeof(path), >>> diff --git a/libkmod/libkmod.c b/libkmod/libkmod.c >>> index 1a5a66b..d79bb12 100644 >>> --- a/libkmod/libkmod.c >>> +++ b/libkmod/libkmod.c >>> @@ -525,7 +525,7 @@ int kmod_lookup_alias_from_builtin_file(struct kmod_ctx *ctx, const char *name, >>> goto finish; >>> } >>> >>> - kmod_module_set_builtin(mod, true); >>> + kmod_module_set_builtin(mod, KMOD_BUILTIN_YES); >>> *list = kmod_list_append(*list, mod); >>> if (*list == NULL) >>> err = -ENOMEM; >>> @@ -536,6 +536,39 @@ finish: >>> return err; >>> } >>> >>> +int kmod_just_lookup_alias_from_builtin_file(struct kmod_ctx *ctx, >>> + const char *name) { >>> + char *line = NULL; >>> + >>> + if (ctx->indexes[KMOD_INDEX_MODULES_BUILTIN]) { >>> + DBG(ctx, "use mmaped index '%s' modname=%s\n", >>> + index_files[KMOD_INDEX_MODULES_BUILTIN].fn, name); >>> + line = index_mm_search(ctx->indexes[KMOD_INDEX_MODULES_BUILTIN], name); >>> + } else { >>> + struct index_file *idx; >>> + char fn[PATH_MAX]; >>> + >>> + snprintf(fn, sizeof(fn), "%s/%s.bin", ctx->dirname, >>> + index_files[KMOD_INDEX_MODULES_BUILTIN].fn); >>> + DBG(ctx, "file=%s modname=%s\n", fn, name); >>> + >>> + idx = index_file_open(fn); >>> + if (idx == NULL) { >>> + DBG(ctx, "could not open builtin file '%s'\n", fn); >>> + goto finish; >>> + } >>> + >>> + line = index_search(idx, name); >>> + index_file_close(idx); >>> + } >>> + >>> + if (line != NULL) >>> + return KMOD_BUILTIN_YES; >>> + >>> +finish: >>> + return KMOD_BUILTIN_NO; >>> +} >>> + >>> char *kmod_search_moddep(struct kmod_ctx *ctx, const char *name) >>> { >>> struct index_file *idx; >>> >>> >>> >> >> I guess there are some mistakes >> >> 1) return mod->builtin == KMOD_BUILTIN_YES; should be made to >> return builtin == KMOD_BUILTIN_YES; >> 2) S_ISDIR check needs to be removed. >> >> Lucas, >> In any case , Can this patch can be taken in sequence? >> My first original patch of removing directory check can be taken first. Then the necessary changes required. (you might add as well in your free time as suggested by you) > I fixed some mistakes like you pointed out, added minor changes and > applied to the master branch: > https://git.kernel.org/cgit/utils/kernel/kmod/kmod.git/commit/?id=fd44a98ae2eb5eb32161088954ab21e58e19dfc4 > > I also added some tests to the testsuite on top. Could you please take > a look if everything is right for your use case in master branch? > > thanks > checked the master branch for the commit. It is right for our use case. Thanks, Harish -- To unsubscribe from this list: send the line "unsubscribe linux-modules" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html