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SubjectRe: [PATCH v9 0/3] drivers: ddcci: upstream DDCCI driver
On Sat, Mar 26, 2022 at 09:58:42PM -0700, Yusuf Khan wrote:
> This patch upstreams(adds) the DDCCI driver by Christoph Grenz into
> the kernel. The original gitlab page is loacted at https://gitlab
> .com/ddcci-driver-linux/ddcci-driver-linux/-/tree/master.
> DDC/CI is a control protocol for monitor settings supported by most
> monitors since about 2005. A chardev and sysfs interface is provided.
> The seccond patch in this series provides a backlight driver using
> Signed-off-by: Yusuf Khan <>
> Signed-off-by: Christoph Grenz <>
> ---
> v2: Fix typos.
> v3: Add documentation, move files around, replace semaphores with
> mutexes, and replaced <asm-generic/fcntl.h> with <linux/fcntl.h>.
> "imirkin"(which due to his involvement in the dri-devel irc channel
> I cant help but assume to be a DRM developer) said that the DDC/CI
> bus does not intefere with the buses that DRM is involved with.
> v4: Move some documentation, fix grammer mistakes, remove usages of
> likely(), and clarify some documentation.
> v5: Fix grammer mistakes, remove usages of likely(), and clarify
> some documentation.
> v6: Change contact information to reference Christoph Grenz.
> v7: Remove all instances of the unlikely() macro.
> v8: Modify documentation to provide updated date and kernel
> documentation, fix SPDX lines, use isalpha instead of redefining
> logic, change maximum amount of bytes that can be written to be
> conformant with DDC/CI specification, prevent userspace from holding
> locks with the open file descriptor, remove ddcci_cdev_seek, dont
> refine sysfs_emit() logic, use EXPORT_SYMBOL_GPL instead of
> EXPORT_SYMBOL, remove ddcci_device_remove_void, remove module
> paramaters and version, and split into 2 patches.
> v9: Fix IS_ANY_ID matching for compilers and archs where char is
> unsigned char and use the cannonical patch format.
> Reported-by: kernel test robot <>

You sent 3 patches with all the same subject line, yet they did
different things. That's not ok at all. Please read the kernel
documentation for how to write proper subject lines.


greg k-h

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