binder: Add support for file-descriptor arrays
This patch introduces a new binder_fd_array object, that allows us to support one or more file descriptors embedded in a buffer that is scatter-gathered. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Martijn Coenen <maco@google.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Amit Pundir <amit.pundir@linaro.org> Cc: Serban Constantinescu <serban.constantinescu@arm.com> Cc: Dmitry Shmidt <dimitrysh@google.com> Cc: Rom Lemarchand <romlem@google.com> Cc: Android Kernel Team <kernel-team@android.com> Signed-off-by: NMartijn Coenen <maco@google.com> Signed-off-by: NJohn Stultz <john.stultz@linaro.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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