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[34.125.197.132]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-22c33f1cd87sm20719205ad.73.2025.04.16.17.20.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Apr 2025 17:20:20 -0700 (PDT) From: Li Li To: dualli@google.com, corbet@lwn.net, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, donald.hunter@gmail.com, gregkh@linuxfoundation.org, arve@android.com, tkjos@android.com, maco@android.com, joel@joelfernandes.org, brauner@kernel.org, cmllamas@google.com, surenb@google.com, omosnace@redhat.com, shuah@kernel.org, arnd@arndb.de, masahiroy@kernel.org, bagasdotme@gmail.com, horms@kernel.org, tweek@google.com, paul@paul-moore.com, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, netdev@vger.kernel.org, selinux@vger.kernel.org, linux-security-module@vger.kernel.org, hridya@google.com Cc: smoreland@google.com, ynaffit@google.com, kernel-team@android.com Subject: [PATCH RESEND v17 3/3] binder: transaction report binder_features flag Date: Wed, 16 Apr 2025 17:20:04 -0700 Message-ID: <20250417002005.2306284-4-dualli@chromium.org> X-Mailer: git-send-email 2.49.0.805.g082f7c87e0-goog In-Reply-To: <20250417002005.2306284-1-dualli@chromium.org> References: <20250417002005.2306284-1-dualli@chromium.org> Precedence: bulk X-Mailing-List: linux-security-module@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Li Li Add a flag to binder_features to indicate that the transaction report feature via generic netlink is available. Signed-off-by: Li Li --- drivers/android/binderfs.c | 8 ++++++++ .../selftests/filesystems/binderfs/binderfs_test.c | 1 + 2 files changed, 9 insertions(+) diff --git a/drivers/android/binderfs.c b/drivers/android/binderfs.c index 98da8c4eea59..bf9c3becca1e 100644 --- a/drivers/android/binderfs.c +++ b/drivers/android/binderfs.c @@ -59,6 +59,7 @@ struct binder_features { bool oneway_spam_detection; bool extended_error; bool freeze_notification; + bool transaction_report; }; static const struct constant_table binderfs_param_stats[] = { @@ -76,6 +77,7 @@ static struct binder_features binder_features = { .oneway_spam_detection = true, .extended_error = true, .freeze_notification = true, + .transaction_report = true, }; static inline struct binderfs_info *BINDERFS_SB(const struct super_block *sb) @@ -619,6 +621,12 @@ static int init_binder_features(struct super_block *sb) if (IS_ERR(dentry)) return PTR_ERR(dentry); + dentry = binderfs_create_file(dir, "transaction_report", + &binder_features_fops, + &binder_features.transaction_report); + if (IS_ERR(dentry)) + return PTR_ERR(dentry); + return 0; } diff --git a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c index 81db85a5cc16..39a68078a79b 100644 --- a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c +++ b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c @@ -65,6 +65,7 @@ static int __do_binderfs_test(struct __test_metadata *_metadata) "oneway_spam_detection", "extended_error", "freeze_notification", + "transaction_report", }; change_mountns(_metadata);