diff mbox series

[bpf-next,v9,11/23] HID: Kconfig: split HID support and hid-core compilation

Message ID 20220824134055.1328882-12-benjamin.tissoires@redhat.com
State Superseded
Headers show
Series Introduce eBPF support for HID devices | expand

Commit Message

Benjamin Tissoires Aug. 24, 2022, 1:40 p.m. UTC 
Currently, we step into drivers/hid/ based on the value of
CONFIG_HID.

However, that value is a tristate, meaning that it can be a module.

As per the documentation, if we jump into the subdirectory by
following an obj-m, we can not compile anything inside that
subdirectory in vmlinux. It is considered as a bug.

To make things more friendly to HID-BPF, split HID (the HID core
parameter) from HID_SUPPORT (do we want any kind of HID support in the
system?), and make this new config a boolean.

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>

---

no changes in v9

no changes in v8

new in v7
---
 drivers/Makefile    |  2 +-
 drivers/hid/Kconfig | 20 +++++++++++---------
 2 files changed, 12 insertions(+), 10 deletions(-)
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Patch

diff --git a/drivers/Makefile b/drivers/Makefile
index 057857258bfd..a24e6be80764 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -137,7 +137,7 @@  obj-$(CONFIG_CRYPTO)		+= crypto/
 obj-$(CONFIG_SUPERH)		+= sh/
 obj-y				+= clocksource/
 obj-$(CONFIG_DCA)		+= dca/
-obj-$(CONFIG_HID)		+= hid/
+obj-$(CONFIG_HID_SUPPORT)	+= hid/
 obj-$(CONFIG_PPC_PS3)		+= ps3/
 obj-$(CONFIG_OF)		+= of/
 obj-$(CONFIG_SSB)		+= ssb/
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 6ce92830b5d1..4f24e42372dc 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -2,12 +2,18 @@ 
 #
 # HID driver configuration
 #
-menu "HID support"
-     depends on INPUT
+menuconfig HID_SUPPORT
+	bool "HID bus support"
+	default y
+	depends on INPUT
+	help
+	  This option adds core support for human interface device (HID).
+	  You will also need drivers from the following menu to make use of it.
+
+if HID_SUPPORT
 
 config HID
-	tristate "HID bus support"
-	depends on INPUT
+	tristate "HID bus core support"
 	default y
 	help
 	  A human interface device (HID) is a type of computer device that
@@ -24,8 +30,6 @@  config HID
 
 	  If unsure, say Y.
 
-if HID
-
 config HID_BATTERY_STRENGTH
 	bool "Battery level reporting for HID devices"
 	depends on HID
@@ -1324,8 +1328,6 @@  config HID_KUNIT_TEST
 
 endmenu
 
-endif # HID
-
 source "drivers/hid/usbhid/Kconfig"
 
 source "drivers/hid/i2c-hid/Kconfig"
@@ -1336,4 +1338,4 @@  source "drivers/hid/amd-sfh-hid/Kconfig"
 
 source "drivers/hid/surface-hid/Kconfig"
 
-endmenu
+endif # HID_SUPPORT