Developers working on AFUs and AFU drivers often find it useful to see the
pr_devel() and dev_dbg() messages from cxl. Give them an easy way to enable
-DDEBUG by adding a Kconfig option, CONFIG_CXL_DEBUG.
Inspired-by: Uma Krishnan <ukri...@linux.vnet.ibm.com>
Signed-off-by: Andrew Donnellan <andrew.donnel...@au1.ibm.com>
---
drivers/misc/cxl/Kconfig | 12 ++++++++++++
drivers/misc/cxl/Makefile | 1 +
2 files changed, 13 insertions(+)
diff --git a/drivers/misc/cxl/Kconfig b/drivers/misc/cxl/Kconfig
index b75cf83..88ad9f1 100644
--- a/drivers/misc/cxl/Kconfig
+++ b/drivers/misc/cxl/Kconfig
@@ -36,3 +36,15 @@ config CXL_BIMODAL
help
Select this option to enable support for bi-modal CAPI cards, such as
the Mellanox CX-4.
+
+config CXL_DEBUG
+ bool "Enable additional CXL debug output"
+ depends on CXL
+ default n
+ help
+ Select this option to enable additional debug output from the cxl
+ driver. This may be useful if you're developing or debugging a CAPI
+ Accelerator Function Unit or cxl-dependent device driver, but is
+ generally not useful for end users.
+
+ If unsure, say N.
diff --git a/drivers/misc/cxl/Makefile b/drivers/misc/cxl/Makefile
index 8a55c1a..620b132 100644
--- a/drivers/misc/cxl/Makefile
+++ b/drivers/misc/cxl/Makefile
@@ -1,5 +1,6 @@
ccflags-y := $(call cc-disable-warning,
unused-const-variable)
ccflags-$(CONFIG_PPC_WERROR) += -Werror
+ccflags-$(CONFIG_CXL_DEBUG) += -DDEBUG
cxl-y += main.o file.o irq.o fault.o native.o
cxl-y += context.o sysfs.o debugfs.o pci.o trace.o
--
Andrew Donnellan OzLabs, ADL Canberra
andrew.donnel...@au1.ibm.com IBM Australia Limited
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