From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752275AbeENX1Z (ORCPT ); Mon, 14 May 2018 19:27:25 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:60708 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752049AbeENX1X (ORCPT ); Mon, 14 May 2018 19:27:23 -0400 Subject: Re: [PATCH v1 1/4] media: rc: introduce BPF_PROG_IR_DECODER To: Sean Young , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Alexei Starovoitov , Mauro Carvalho Chehab , Daniel Borkmann , netdev@vger.kernel.org, Matthias Reichl , Devin Heitmueller References: <32a944171d5c48abf126259595b0088ce3122c91.1526331777.git.sean@mess.org> From: Randy Dunlap Message-ID: <089862eb-8d37-6479-3c2a-ba6199ae7d3c@infradead.org> Date: Mon, 14 May 2018 16:27:19 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <32a944171d5c48abf126259595b0088ce3122c91.1526331777.git.sean@mess.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/14/2018 02:10 PM, Sean Young wrote: > Add support for BPF_PROG_IR_DECODER. This type of BPF program can call Kconfig file below uses IR_BPF_DECODER instead of the symbol name above. and then patch 3 says a third choice: The context provided to a BPF_PROG_RAWIR_DECODER is a struct ir_raw_event; > rc_keydown() to reported decoded IR scancodes, or rc_repeat() to report > that the last key should be repeated. > > Signed-off-by: Sean Young > --- > drivers/media/rc/Kconfig | 8 +++ > drivers/media/rc/Makefile | 1 + > drivers/media/rc/ir-bpf-decoder.c | 93 +++++++++++++++++++++++++++++++ > include/linux/bpf_types.h | 3 + > include/uapi/linux/bpf.h | 16 +++++- > 5 files changed, 120 insertions(+), 1 deletion(-) > create mode 100644 drivers/media/rc/ir-bpf-decoder.c > > diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig > index eb2c3b6eca7f..10ad6167d87c 100644 > --- a/drivers/media/rc/Kconfig > +++ b/drivers/media/rc/Kconfig > @@ -120,6 +120,14 @@ config IR_IMON_DECODER > remote control and you would like to use it with a raw IR > receiver, or if you wish to use an encoder to transmit this IR. > > +config IR_BPF_DECODER > + bool "Enable IR raw decoder using BPF" > + depends on BPF_SYSCALL > + depends on RC_CORE=y > + help > + Enable this option to make it possible to load custom IR > + decoders written in BPF. > + > endif #RC_DECODERS > > menuconfig RC_DEVICES > diff --git a/drivers/media/rc/Makefile b/drivers/media/rc/Makefile > index 2e1c87066f6c..12e1118430d0 100644 > --- a/drivers/media/rc/Makefile > +++ b/drivers/media/rc/Makefile > @@ -5,6 +5,7 @@ obj-y += keymaps/ > obj-$(CONFIG_RC_CORE) += rc-core.o > rc-core-y := rc-main.o rc-ir-raw.o > rc-core-$(CONFIG_LIRC) += lirc_dev.o > +rc-core-$(CONFIG_IR_BPF_DECODER) += ir-bpf-decoder.o -- ~Randy