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-rw-r--r--Documentation/ABI/obsolete/sysfs-class-cxl (renamed from Documentation/ABI/testing/sysfs-class-cxl)3
-rw-r--r--MAINTAINERS4
-rw-r--r--drivers/misc/cxl/Kconfig6
-rw-r--r--drivers/misc/cxl/of.c2
-rw-r--r--drivers/misc/cxl/pci.c2
5 files changed, 13 insertions, 4 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-cxl b/Documentation/ABI/obsolete/sysfs-class-cxl
index cfc48a87706b..8cba1b626985 100644
--- a/Documentation/ABI/testing/sysfs-class-cxl
+++ b/Documentation/ABI/obsolete/sysfs-class-cxl
@@ -1,3 +1,6 @@
+The cxl driver is no longer maintained, and will be removed from the kernel in
+the near future.
+
Please note that attributes that are shared between devices are stored in
the directory pointed to by the symlink device/.
For example, the real path of the attribute /sys/class/cxl/afu0.0s/irqs_max is
diff --git a/MAINTAINERS b/MAINTAINERS
index 17daa9ee9384..1737a8ff4f2b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6228,8 +6228,8 @@ CXL (IBM Coherent Accelerator Processor Interface CAPI) DRIVER
M: Frederic Barrat <fbarrat@linux.ibm.com>
M: Andrew Donnellan <ajd@linux.ibm.com>
L: linuxppc-dev@lists.ozlabs.org
-S: Supported
-F: Documentation/ABI/testing/sysfs-class-cxl
+S: Obsolete
+F: Documentation/ABI/obsolete/sysfs-class-cxl
F: Documentation/arch/powerpc/cxl.rst
F: arch/powerpc/platforms/powernv/pci-cxl.c
F: drivers/misc/cxl/
diff --git a/drivers/misc/cxl/Kconfig b/drivers/misc/cxl/Kconfig
index 5efc4151bf58..15307f5e4307 100644
--- a/drivers/misc/cxl/Kconfig
+++ b/drivers/misc/cxl/Kconfig
@@ -9,11 +9,13 @@ config CXL_BASE
select PPC_64S_HASH_MMU
config CXL
- tristate "Support for IBM Coherent Accelerators (CXL)"
+ tristate "Support for IBM Coherent Accelerators (CXL) (DEPRECATED)"
depends on PPC_POWERNV && PCI_MSI && EEH
select CXL_BASE
- default m
help
+ The cxl driver is deprecated and will be removed in a future
+ kernel release.
+
Select this option to enable driver support for IBM Coherent
Accelerators (CXL). CXL is otherwise known as Coherent Accelerator
Processor Interface (CAPI). CAPI allows accelerators in FPGAs to be
diff --git a/drivers/misc/cxl/of.c b/drivers/misc/cxl/of.c
index cf6bd8a43056..e26ee85279fa 100644
--- a/drivers/misc/cxl/of.c
+++ b/drivers/misc/cxl/of.c
@@ -295,6 +295,8 @@ int cxl_of_probe(struct platform_device *pdev)
int ret;
int slice = 0, slice_ok = 0;
+ dev_err_once(&pdev->dev, "DEPRECATION: cxl is deprecated and will be removed in a future kernel release\n");
+
pr_devel("in %s\n", __func__);
np = pdev->dev.of_node;
diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c
index 3d52f9b92d0d..92bf7c5c7b35 100644
--- a/drivers/misc/cxl/pci.c
+++ b/drivers/misc/cxl/pci.c
@@ -1726,6 +1726,8 @@ static int cxl_probe(struct pci_dev *dev, const struct pci_device_id *id)
int slice;
int rc;
+ dev_err_once(&dev->dev, "DEPRECATED: cxl is deprecated and will be removed in a future kernel release\n");
+
if (cxl_pci_is_vphb_device(dev)) {
dev_dbg(&dev->dev, "cxl_init_adapter: Ignoring cxl vphb device\n");
return -ENODEV;