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Wysocki" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] modules: add modalias file to sysfs for modules. Message-ID: References: <20221111152852.2837363-1-allenwebb@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221111152852.2837363-1-allenwebb@google.com> Sender: Luis Chamberlain X-Spam-Status: No, score=-4.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Nov 11, 2022 at 09:28:52AM -0600, Allen Webb wrote: > USB devices support the authorized attribute which can be used by > user-space to implement trust-based systems for enabling USB devices. It > would be helpful when building these systems to be able to know in > advance which kernel drivers (or modules) are reachable from a > particular USB device. > > This information is readily available for external modules in > modules.alias. However, builtin kernel modules are not covered. This > patch adds a sys-fs attribute to both builtin and loaded modules > exposing the matching rules in the modalias format for integration > with tools like USBGuard. > > Signed-off-by: Allen Webb Thanks for the patch Allen! I'd rather have something generic though, and it would seem kmod [0] already does this, have you seen the kmod support for builtin.alias.bin Can't that be used? [0] git://git.kernel.org/pub/scm/utils/kernel/kmod/kmod.git Luis