diff options
| -rw-r--r-- | Documentation/sysctl/kernel.txt | 1 | ||||
| -rw-r--r-- | include/linux/kernel.h | 1 | ||||
| -rw-r--r-- | kernel/module.c | 11 | ||||
| -rw-r--r-- | kernel/panic.c | 6 |
4 files changed, 17 insertions, 2 deletions
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt index e1ff0d920a5c..bde799e06598 100644 --- a/Documentation/sysctl/kernel.txt +++ b/Documentation/sysctl/kernel.txt @@ -369,4 +369,5 @@ can be ORed together: 2 - A module was force loaded by insmod -f. Set by modutils >= 2.4.9 and module-init-tools. 4 - Unsafe SMP processors: SMP with CPUs not designed for SMP. + 64 - A module from drivers/staging was loaded. diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 2651f805ba6d..b36805cb95fb 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -260,6 +260,7 @@ extern enum system_states { #define TAINT_DIE (1<<7) #define TAINT_OVERRIDDEN_ACPI_TABLE (1<<8) #define TAINT_WARN (1<<9) +#define TAINT_CRAP (1<<10) extern void dump_stack(void) __cold; diff --git a/kernel/module.c b/kernel/module.c index 9db11911e04b..152b1655bbac 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -1806,6 +1806,7 @@ static noinline struct module *load_module(void __user *umod, Elf_Ehdr *hdr; Elf_Shdr *sechdrs; char *secstrings, *args, *modmagic, *strtab = NULL; + char *staging; unsigned int i; unsigned int symindex = 0; unsigned int strindex = 0; @@ -1960,6 +1961,14 @@ static noinline struct module *load_module(void __user *umod, goto free_hdr; } + staging = get_modinfo(sechdrs, infoindex, "staging"); + if (staging) { + add_taint_module(mod, TAINT_CRAP); + printk(KERN_WARNING "%s: module is from the staging directory," + " the quality is unknown, you have been warned.\n", + mod->name); + } + /* Now copy in args */ args = strndup_user(uargs, ~0UL >> 1); if (IS_ERR(args)) { @@ -2556,6 +2565,8 @@ static char *module_flags(struct module *mod, char *buf) buf[bx++] = 'P'; if (mod->taints & TAINT_FORCED_MODULE) buf[bx++] = 'F'; + if (mod->taints & TAINT_CRAP) + buf[bx++] = 'C'; /* * TAINT_FORCED_RMMOD: could be added. * TAINT_UNSAFE_SMP, TAINT_MACHINE_CHECK, TAINT_BAD_PAGE don't diff --git a/kernel/panic.c b/kernel/panic.c index 12c5a0a6c89b..98e2047f4db7 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -155,6 +155,7 @@ EXPORT_SYMBOL(panic); * 'U' - Userspace-defined naughtiness. * 'A' - ACPI table overridden. * 'W' - Taint on warning. + * 'C' - modules from drivers/staging are loaded. * * The string is overwritten by the next call to print_taint(). */ @@ -163,7 +164,7 @@ const char *print_tainted(void) { static char buf[20]; if (tainted) { - snprintf(buf, sizeof(buf), "Tainted: %c%c%c%c%c%c%c%c%c%c", + snprintf(buf, sizeof(buf), "Tainted: %c%c%c%c%c%c%c%c%c%c%c", tainted & TAINT_PROPRIETARY_MODULE ? 'P' : 'G', tainted & TAINT_FORCED_MODULE ? 'F' : ' ', tainted & TAINT_UNSAFE_SMP ? 'S' : ' ', @@ -173,7 +174,8 @@ const char *print_tainted(void) tainted & TAINT_USER ? 'U' : ' ', tainted & TAINT_DIE ? 'D' : ' ', tainted & TAINT_OVERRIDDEN_ACPI_TABLE ? 'A' : ' ', - tainted & TAINT_WARN ? 'W' : ' '); + tainted & TAINT_WARN ? 'W' : ' ', + tainted & TAINT_CRAP ? 'C' : ' '); } else snprintf(buf, sizeof(buf), "Not tainted"); |