Request to add mainline merged patch to stable kernels

Request to add mainline merged patch to stable kernels

[JP Dehollain]

Hello,
I recently used the patch misc: rtsx_pci: Add separate CD/WP pin
polarity reversal support with commit ID 807221d, to fix a bug causing
the cardreader driver to always load sd cards in read-only mode.
On the suggestion of the driver maintainer, I am requesting that this
patch be applied to all stable kernel versions, as it is currently
only applied to >=6.18.
Thanks,
JP

Re: Request to add mainline merged patch to stable kernels

[Greg KH]

On Tue, Dec 23, 2025 at 04:05:24PM +1100, JP Dehollain wrote:
> Hello,
> I recently used the patch misc: rtsx_pci: Add separate CD/WP pin
> polarity reversal support with commit ID 807221d, to fix a bug causing
> the cardreader driver to always load sd cards in read-only mode.
> On the suggestion of the driver maintainer, I am requesting that this
> patch be applied to all stable kernel versions, as it is currently
> only applied to >=6.18.
> Thanks,
> JP
> 

What is the git id of the commit you are looking to have backported?

thanks,

greg k-h

Fwd: Request to add mainline merged patch to stable kernels

[JP Dehollain]

Hi Greg, thanks for looking into this..
The full commit hash is 807221d3c5ff6e3c91ff57bc82a0b7a541462e20

Note: apologies if you received this multiple times, the previous one
got bounced due to html

Cheers,
JP
________________________________
From: Greg KH <gregkh@linuxfoundation.org>
Sent: Tuesday, December 23, 2025 6:39:22 PM
To: JP Dehollain <jpdehollain@gmail.com>
Cc: stable@vger.kernel.org <stable@vger.kernel.org>
Subject: Re: Request to add mainline merged patch to stable kernels

On Tue, Dec 23, 2025 at 04:05:24PM +1100, JP Dehollain wrote:
> Hello,
> I recently used the patch misc: rtsx_pci: Add separate CD/WP pin
> polarity reversal support with commit ID 807221d, to fix a bug causing
> the cardreader driver to always load sd cards in read-only mode.
> On the suggestion of the driver maintainer, I am requesting that this
> patch be applied to all stable kernel versions, as it is currently
> only applied to >=6.18.
> Thanks,
> JP
>

What is the git id of the commit you are looking to have backported?

thanks,

greg k-h

Re: Fwd: Request to add mainline merged patch to stable kernels

[Greg KH]

On Thu, Dec 25, 2025 at 08:55:30AM +1100, JP Dehollain wrote:
> Hi Greg, thanks for looking into this..
> The full commit hash is 807221d3c5ff6e3c91ff57bc82a0b7a541462e20

That commit fails to build on the 6.12.y kernel tree, so how was this
tested?

thanks,

greg k-h

Re: Fwd: Request to add mainline merged patch to stable kernels

[JP Dehollain]

Apologies greg, I just realised that there is a prior commit
587d1c3c2550abd5592e1f0dc0030538c9ed9216 that needs to be merged
before the 807221d can pass the build.

On Wed, 7 Jan 2026 at 01:57, Greg KH <gregkh@linuxfoundation.org> wrote:
>
> On Thu, Dec 25, 2025 at 08:55:30AM +1100, JP Dehollain wrote:
> > Hi Greg, thanks for looking into this..
> > The full commit hash is 807221d3c5ff6e3c91ff57bc82a0b7a541462e20
>
> That commit fails to build on the 6.12.y kernel tree, so how was this
> tested?
>
> thanks,
>
> greg k-h

Re: Fwd: Request to add mainline merged patch to stable kernels

[Greg KH]

On Wed, Jan 07, 2026 at 04:43:42PM +1100, JP Dehollain wrote:
> Apologies greg, I just realised that there is a prior commit
> 587d1c3c2550abd5592e1f0dc0030538c9ed9216 that needs to be merged
> before the 807221d can pass the build.

Great, please submit a patch series of this, that are properly tested,
so we know exactly what to do here.

thanks,

greg k-h

Re: Fwd: Request to add mainline merged patch to stable kernels

[JP Dehollain]

Thanks, I can do that, just note that these patches had already been
previously submitted and merged into mainline:

1/2 - [PATCH] misc: rtsx: Add support for RTS5264 Version B and
optimize init flow - Ricky Wu
Link: https://lore.kernel.org/all/20250620071325.1887017-1-ricky_wu@realtek.com/

2/2 - [PATCH] misc: rtsx_pci: Add separate CD/WP pin polarity reversal
support - Ricky Wu
Link: https://lore.kernel.org/all/20250812063521.2427696-1-ricky_wu@realtek.com/

The request is to also get them merged into all previous stable
versions. Apologies if I'm missing some trivial context, I'm just
learning about the kernel development process and I'm not across this
process of porting patches across kernel versions.

Cheers,
JP

On Wed, 7 Jan 2026 at 17:41, Greg KH <gregkh@linuxfoundation.org> wrote:
>
> On Wed, Jan 07, 2026 at 04:43:42PM +1100, JP Dehollain wrote:
> > Apologies greg, I just realised that there is a prior commit
> > 587d1c3c2550abd5592e1f0dc0030538c9ed9216 that needs to be merged
> > before the 807221d can pass the build.
>
> Great, please submit a patch series of this, that are properly tested,
> so we know exactly what to do here.
>
> thanks,
>
> greg k-h

Re: Fwd: Request to add mainline merged patch to stable kernels

[Greg KH]

A: http://en.wikipedia.org/wiki/Top_post
Q: Were do I find info about this thing called top-posting?
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?

A: No.
Q: Should I include quotations after my reply?

http://daringfireball.net/2007/07/on_top

On Thu, Jan 08, 2026 at 11:57:58AM +1100, JP Dehollain wrote:
> Thanks, I can do that, just note that these patches had already been
> previously submitted and merged into mainline:
> 
> 1/2 - [PATCH] misc: rtsx: Add support for RTS5264 Version B and
> optimize init flow - Ricky Wu
> Link: https://lore.kernel.org/all/20250620071325.1887017-1-ricky_wu@realtek.com/
> 
> 2/2 - [PATCH] misc: rtsx_pci: Add separate CD/WP pin polarity reversal
> support - Ricky Wu
> Link: https://lore.kernel.org/all/20250812063521.2427696-1-ricky_wu@realtek.com/
> 
> The request is to also get them merged into all previous stable
> versions.

What exactly is "all"?

And what are the git ids for these commits?

> Apologies if I'm missing some trivial context, I'm just
> learning about the kernel development process and I'm not across this
> process of porting patches across kernel versions.

The process is documented here:
    https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html

for basic stable stuff, but when you want a series backported that
doesn't apply cleanly, you need to provide a tested series yourself.

thanks,

greg k-h