linux-kernel - Re: [PATCH 0/3] CXL updates for v6.19

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Message-ID: <aRW6h127k5Tzns8R@rric.localdomain>
Date: Thu, 13 Nov 2025 12:01:27 +0100
From: Robert Richter <rrichter@....com>
To: Dave Jiang <dave.jiang@...el.com>
Cc: Alison Schofield <alison.schofield@...el.com>,
	Vishal Verma <vishal.l.verma@...el.com>,
	Ira Weiny <ira.weiny@...el.com>,
	Dan Williams <dan.j.williams@...el.com>,
	Jonathan Cameron <jonathan.cameron@...wei.com>,
	Davidlohr Bueso <dave@...olabs.net>, linux-cxl@...r.kernel.org,
	linux-kernel@...r.kernel.org, Gregory Price <gourry@...rry.net>,
	"Fabio M. De Francesco" <fabio.m.de.francesco@...ux.intel.com>,
	Terry Bowman <terry.bowman@....com>,
	Joshua Hahn <joshua.hahnjy@...il.com>
Subject: Re: [PATCH 0/3] CXL updates for v6.19

On 12.11.25 14:45:28, Dave Jiang wrote:
> 
> 
> On 11/12/25 1:51 PM, Robert Richter wrote:
> > Sending optional and rather independent patches from v5 of the CXL
> > address translation series [1] separately in this series. The patches
> > could be applied together with early pick up candidates from the
> > address translation series (namely patch #1 to #4 or #5).
> > 
> > [1] https://patchwork.kernel.org/project/cxl/cover/20251112203143.1269944-1-rrichter@amd.com/
> > 
> > Robert Richter (3):
> >   cxl: Simplify cxl_rd_ops allocation and handling
> >   cxl/acpi: Group xor arithmetric setup code in a single block
> >   cxl/region: Remove local variable @inc in cxl_port_setup_targets()
> > 
> >  drivers/cxl/acpi.c        | 15 ++++-----------
> >  drivers/cxl/core/region.c | 25 +++++++------------------
> >  drivers/cxl/cxl.h         |  2 +-
> >  3 files changed, 12 insertions(+), 30 deletions(-)
> > 
> 
> Hi Robert, I'm having issues applying to 6.18-rc4.
> 
> Applying: cxl: Simplify cxl_rd_ops allocation and handling
> Patch failed at 0001 cxl: Simplify cxl_rd_ops allocation and handling
> error: patch failed: drivers/cxl/core/region.c:2958
> error: drivers/cxl/core/region.c: patch does not apply

You need to apply it on cxl/next. There are conflicts otherwise.

Additionally, patch 3/3 (@inc variable change) of this series also
depends on patch 02/11 of v5 (store root decoder in in struct
cxl_region). If you chose to pickup some patches from v5 first on top
of cxl/next, then all this 3 patches should apply cleanly.

Since 02/11 is one of the first patches and it sounded to me some of
them will be applied as well, I would prefer that order to avoid
rebasing and resubmitting a v6 for that. Let me know if you want to
handle this differently.

> hint: Use 'git am --show-current-patch=diff' to see the failed patch
> hint: When you have resolved this problem, run "git am --continue".
> hint: If you prefer to skip this patch, run "git am --skip" instead.
> hint: To restore the original branch and stop patching, run "git am --abort".
> hint: Disable this message with "git config set advice.mergeConflict false"
> 
> Also:
> ---
>   ✓ [PATCH 1/3] cxl: Simplify cxl_rd_ops allocation and handling
>     + Link: https://patch.msgid.link/20251112205105.1271726-2-rrichter@amd.com
>     + Signed-off-by: Dave Jiang <dave.jiang@...el.com>
>     ● checkpatch.pl: 118: WARNING: 'existance' may be misspelled - perhaps 'existence'?

Will send an update and also update the sob-chain.

Thanks,

-Robert