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| author |   Aaron Tomlin <atomlin@redhat.com> | 2022-05-02 21:51:03 +0100 |
|---|---|---|
| committer |   Luis Chamberlain <mcgrof@kernel.org> | 2022-05-12 10:29:41 -0700 |
| commit | c14e522bc76efed6e947cd0ab83a1fac7a7a3ec9 (patch) | |
| tree | ec105e1b7a1e6b02b7a58f611ecabb40b0ed2f02 /kernel/module | |
| parent | module.h: simplify MODULE_IMPORT_NS (diff) | |
| download | wireguard-linux-c14e522bc76efed6e947cd0ab83a1fac7a7a3ec9.tar.xz wireguard-linux-c14e522bc76efed6e947cd0ab83a1fac7a7a3ec9.zip | |
module: Make module_flags_taint() accept a module's taints bitmap and usable outside core code
No functional change.
The purpose of this patch is to modify module_flags_taint() to accept
a module's taints bitmap as a parameter and modifies all users
accordingly. Furthermore, it is now possible to access a given
module's taint flags data outside of non-essential code yet does
remain for internal use only.
This is in preparation for module unload taint tracking support.
Signed-off-by: Aaron Tomlin <atomlin@redhat.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Diffstat (limited to 'kernel/module')
| -rw-r--r-- | kernel/module/internal.h | 1 | ||||
| -rw-r--r-- | kernel/module/main.c | 8 |
2 files changed, 5 insertions, 4 deletions
diff --git a/kernel/module/internal.h b/kernel/module/internal.h index 3e23bef5884d..abbd1c5ef264 100644 --- a/kernel/module/internal.h +++ b/kernel/module/internal.h @@ -100,6 +100,7 @@ int cmp_name(const void *name, const void *sym); long module_get_offset(struct module *mod, unsigned int *size, Elf_Shdr *sechdr, unsigned int section); char *module_flags(struct module *mod, char *buf); +size_t module_flags_taint(unsigned long taints, char *buf); static inline unsigned long kernel_symbol_value(const struct kernel_symbol *sym) { diff --git a/kernel/module/main.c b/kernel/module/main.c index 05a42d8fcd7a..7dbdd098b995 100644 --- a/kernel/module/main.c +++ b/kernel/module/main.c @@ -890,13 +890,13 @@ static inline int module_unload_init(struct module *mod) } #endif /* CONFIG_MODULE_UNLOAD */ -static size_t module_flags_taint(struct module *mod, char *buf) +size_t module_flags_taint(unsigned long taints, char *buf) { size_t l = 0; int i; for (i = 0; i < TAINT_FLAGS_COUNT; i++) { - if (taint_flags[i].module && test_bit(i, &mod->taints)) + if (taint_flags[i].module && test_bit(i, &taints)) buf[l++] = taint_flags[i].c_true; } @@ -974,7 +974,7 @@ static ssize_t show_taint(struct module_attribute *mattr, { size_t l; - l = module_flags_taint(mk->mod, buffer); + l = module_flags_taint(mk->mod->taints, buffer); buffer[l++] = '\n'; return l; } @@ -2993,7 +2993,7 @@ char *module_flags(struct module *mod, char *buf) mod->state == MODULE_STATE_GOING || mod->state == MODULE_STATE_COMING) { buf[bx++] = '('; - bx += module_flags_taint(mod, buf + bx); + bx += module_flags_taint(mod->taints, buf + bx); /* Show a - for module-is-being-unloaded */ if (mod->state == MODULE_STATE_GOING) buf[bx++] = '-'; |