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| author | Matthias Maennich <maennich@google.com> | 2019-09-06 12:32:29 +0200 |
|---|---|---|
| committer | Jessica Yu <jeyu@kernel.org> | 2019-09-10 10:30:27 +0200 |
| commit | 3d52ec5e5d0dd7f8ca96a68c6756bd96e58b716b (patch) | |
| tree | 51b5da97980203a40b9b1393ec5da9157d4d3215 /kernel | |
| parent | modpost: add support for symbol namespaces (diff) | |
| download | linux-3d52ec5e5d0dd7f8ca96a68c6756bd96e58b716b.tar.xz linux-3d52ec5e5d0dd7f8ca96a68c6756bd96e58b716b.zip | |
module: add config option MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS
If MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is enabled (default=n), the
requirement for modules to import all namespaces that are used by
the module is relaxed.
Enabling this option effectively allows (invalid) modules to be loaded
while only a warning is emitted.
Disabling this option keeps the enforcement at module loading time and
loading is denied if the module's imports are not satisfactory.
Reviewed-by: Martijn Coenen <maco@android.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/module.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/kernel/module.c b/kernel/module.c index 6bb9b938f9c7..f76efcf2043e 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -1408,9 +1408,16 @@ static int verify_namespace_is_imported(const struct load_info *info, imported_namespace = get_next_modinfo( info, "import_ns", imported_namespace); } - pr_err("%s: module uses symbol (%s) from namespace %s, but does not import it.\n", - mod->name, kernel_symbol_name(sym), namespace); +#ifdef CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS + pr_warn( +#else + pr_err( +#endif + "%s: module uses symbol (%s) from namespace %s, but does not import it.\n", + mod->name, kernel_symbol_name(sym), namespace); +#ifndef CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS return -EINVAL; +#endif } return 0; } |