Commit 035a07d5 authored by Marcel Holtmann's avatar Marcel Holtmann Committed by Johan Hedberg
Browse files

Bluetooth: Provide option to enable/disable debugfs information 



The Bluetooth controllers can export extensive information about
internal states via debugfs. This patch provides an option to
choose if these information are provided or not.

For backwards compatibility with existing kernel configuration,
this option defaults to yes.

Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: default avatarJohan Hedberg <johan.hedberg@intel.com>
parent 18835dfa

net/bluetooth/Kconfig

+8 −0
Original line number Diff line number Diff line
@@ -91,4 +91,12 @@ config BT_SELFTEST_SMP 
	  Run test cases for SMP cryptographic functionality, including both

	  legacy SMP as well as the Secure Connections features.



config BT_DEBUGFS

	bool "Export Bluetooth internals in debugfs"

	depends on BT && DEBUG_FS

	default y

	help

	  Provide extensive information about internal Bluetooth states

	  in debugfs.



source "drivers/bluetooth/Kconfig"

net/bluetooth/Makefile

+2 −1
Original line number Diff line number Diff line
@@ -13,8 +13,9 @@ bluetooth_6lowpan-y := 6lowpan.o 


bluetooth-y := af_bluetooth.o hci_core.o hci_conn.o hci_event.o mgmt.o \

	hci_sock.o hci_sysfs.o l2cap_core.o l2cap_sock.o smp.o sco.o lib.o \

	a2mp.o amp.o ecc.o hci_request.o hci_debugfs.o

	a2mp.o amp.o ecc.o hci_request.o



bluetooth-$(CONFIG_BT_DEBUGFS) += hci_debugfs.o

bluetooth-$(CONFIG_BT_SELFTEST) += selftest.o



subdir-ccflags-y += -D__CHECK_ENDIAN__

net/bluetooth/hci_debugfs.h

+22 −0
Original line number Diff line number Diff line
@@ -20,7 +20,29 @@ 
   SOFTWARE IS DISCLAIMED.

*/



#if IS_ENABLED(CONFIG_BT_DEBUGFS)



void hci_debugfs_create_common(struct hci_dev *hdev);

void hci_debugfs_create_bredr(struct hci_dev *hdev);

void hci_debugfs_create_le(struct hci_dev *hdev);

void hci_debugfs_create_conn(struct hci_conn *conn);



#else



static inline void hci_debugfs_create_common(struct hci_dev *hdev)

{

}



static inline void hci_debugfs_create_bredr(struct hci_dev *hdev)

{

}



static inline void hci_debugfs_create_le(struct hci_dev *hdev)

{

}



static inline void hci_debugfs_create_conn(struct hci_conn *conn)

{

}



#endif

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