From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Scott Branden <scott.branden@broadcom.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>,
David Brown <david.brown@linaro.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Shuah Khan <shuah@kernel.org>,
bjorn.andersson@linaro.org,
Shuah Khan <skhan@linuxfoundation.org>,
Arnd Bergmann <arnd@arndb.de>,
"Rafael J . Wysocki" <rafael@kernel.org>,
linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-fsdevel@vger.kernel.org,
BCM Kernel Feedback <bcm-kernel-feedback-list@broadcom.com>,
Olof Johansson <olof@lixom.net>,
Andrew Morton <akpm@linux-foundation.org>,
Dan Carpenter <dan.carpenter@oracle.com>,
Colin Ian King <colin.king@canonical.com>,
Kees Cook <keescook@chromium.org>, Takashi Iwai <tiwai@suse.de>,
linux-kselftest@vger.kernel.org, Andy Gross <agross@kernel.org>,
Desmond Yan <desmond.yan@broadcom.com>,
James Hu <james.hu@broadcom.com>
Subject: Re: [PATCH v2 6/7] misc: bcm-vk: add Broadcom VK driver
Date: Thu, 20 Feb 2020 08:47:11 +0100 [thread overview]
Message-ID: <20200220074711.GA3261162@kroah.com> (raw)
In-Reply-To: <20200220004825.23372-7-scott.branden@broadcom.com>
On Wed, Feb 19, 2020 at 04:48:24PM -0800, Scott Branden wrote:
> Add Broadcom VK driver offload engine.
> This driver interfaces to the VK PCIe offload engine to perform
> should offload functions as video transcoding on multiple streams
> in parallel. VK device is booted from files loaded using
> request_firmware_into_buf mechanism. After booted card status is updated
> and messages can then be sent to the card.
> Such messages contain scatter gather list of addresses
> to pull data from the host to perform operations on.
Why is this a tty driver?
Have you worked with the V4L developers to tie this into the proper
in-kernel apis for this type of functionality?
Using a tty driver seems like the totally incorrect way to do this, what
am I missing?
Also, do not make up random error values, you return "-1" a lot here,
that is not ok. Please fix up to return the correct -Ewhatever values
instead.
thanks,
greg k-h
next prev parent reply other threads:[~2020-02-20 7:47 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-20 0:48 [PATCH v2 0/7] firmware: add partial read support in request_firmware_into_buf Scott Branden
2020-02-20 0:48 ` [PATCH v2 1/7] fs: introduce kernel_pread_file* support Scott Branden
2020-02-20 0:48 ` [PATCH v2 2/7] firmware: add offset to request_firmware_into_buf Scott Branden
2020-02-20 1:22 ` Luis Chamberlain
2020-02-21 0:14 ` Scott Branden
2020-02-22 0:50 ` kbuild test robot
2020-02-22 0:50 ` kbuild test robot
2020-02-22 1:26 ` Scott Branden
2020-02-22 1:26 ` Scott Branden
2020-02-20 0:48 ` [PATCH v2 3/7] test_firmware: add partial read support for request_firmware_into_buf Scott Branden
2020-02-20 8:42 ` Dan Carpenter
2020-02-21 18:30 ` Scott Branden
2020-02-22 1:13 ` Scott Branden
2020-02-24 8:08 ` Dan Carpenter
2020-02-25 19:11 ` Luis Chamberlain
2020-02-20 0:48 ` [PATCH v2 4/7] firmware: test partial file reads of request_firmware_into_buf Scott Branden
2020-02-20 0:48 ` [PATCH v2 5/7] bcm-vk: add bcm_vk UAPI Scott Branden
2020-02-20 7:50 ` Greg Kroah-Hartman
2020-02-21 1:15 ` Scott Branden
2020-02-21 8:34 ` Arnd Bergmann
2020-02-21 18:27 ` Scott Branden
2020-02-21 9:22 ` Greg Kroah-Hartman
2020-02-20 0:48 ` [PATCH v2 6/7] misc: bcm-vk: add Broadcom VK driver Scott Branden
2020-02-20 1:04 ` Randy Dunlap
2020-02-21 0:06 ` Scott Branden
2020-02-21 0:21 ` Randy Dunlap
2020-02-20 7:47 ` Greg Kroah-Hartman [this message]
2020-02-21 18:19 ` Scott Branden
2020-02-22 8:02 ` Arnd Bergmann
2020-02-23 10:00 ` Greg Kroah-Hartman
2020-02-23 23:55 ` Olof Johansson
2020-02-25 22:37 ` Scott Branden
2020-02-20 10:43 ` Dan Carpenter
2020-02-21 18:29 ` Scott Branden
2020-04-17 21:49 ` Scott Branden
2020-04-18 11:45 ` Dan Carpenter
2020-04-18 11:47 ` Dan Carpenter
2020-04-18 17:25 ` Scott Branden
2020-02-22 16:44 ` kbuild test robot
2020-02-22 16:44 ` kbuild test robot
2020-02-22 16:44 ` [RFC PATCH] misc: bcm-vk: image_tab[] can be static kbuild test robot
2020-02-22 16:44 ` kbuild test robot
2020-02-20 0:48 ` [PATCH v2 7/7] MAINTAINERS: bcm-vk: add maintainer for Broadcom VK Driver Scott Branden
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