[PATCH v2] Bluetooth: fix BT dependency for submodules

["Iva Kasprzaková" <iva@yenya.net>]

The modules rfcomm (BT_RFCOMM), bnep (BT_BNEP), hidp (BT_HIDP), and
bluetooth_6lowpan (BT_6LOWPAN) are dependent on the bluetooth module
(BT, tristate) only transitively through the boolean BT_BREDR for the
first three and through the boolean BT_LE for the bluetooth_6lowpan.
Therefore, the modules can be selected as built-in even if the BT=m.
The combination of BT=m and =y for the said modules leads to the kernel
build system silently ignoring those modules, without ever compiling
them as built-in or as loadable modules.

Add BT as a direct dependency to the Kconfig of rfcomm, bnep, hidp, and
bluetooth_6lowpan. The modules set to =y when BT=m will default to =m,
rather then getting silently ignored by the build system.

Signed-off-by: Iva Kasprzaková <iva@yenya.net>
---
 net/bluetooth/Kconfig        | 2 +-
 net/bluetooth/bnep/Kconfig   | 2 +-
 net/bluetooth/hidp/Kconfig   | 2 +-
 net/bluetooth/rfcomm/Kconfig | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/net/bluetooth/Kconfig b/net/bluetooth/Kconfig
index d250e94e90eb..1cda01614efe 100644
--- a/net/bluetooth/Kconfig
+++ b/net/bluetooth/Kconfig
@@ -76,7 +76,7 @@ config BT_LE_L2CAP_ECRED
 
 config BT_6LOWPAN
 	tristate "Bluetooth 6LoWPAN support"
-	depends on BT_LE && 6LOWPAN
+	depends on BT && BT_LE && 6LOWPAN
 	help
 	  IPv6 compression over Bluetooth Low Energy.
 
diff --git a/net/bluetooth/bnep/Kconfig b/net/bluetooth/bnep/Kconfig
index aac02b5b0d17..f8087e2d2c00 100644
--- a/net/bluetooth/bnep/Kconfig
+++ b/net/bluetooth/bnep/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config BT_BNEP
 	tristate "BNEP protocol support"
-	depends on BT_BREDR
+	depends on BT && BT_BREDR
 	select CRC32
 	help
 	  BNEP (Bluetooth Network Encapsulation Protocol) is Ethernet
diff --git a/net/bluetooth/hidp/Kconfig b/net/bluetooth/hidp/Kconfig
index e08aae35351a..ba52c7296f18 100644
--- a/net/bluetooth/hidp/Kconfig
+++ b/net/bluetooth/hidp/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config BT_HIDP
 	tristate "HIDP protocol support"
-	depends on BT_BREDR && HID
+	depends on BT && BT_BREDR && HID
 	help
 	  HIDP (Human Interface Device Protocol) is a transport layer
 	  for HID reports.  HIDP is required for the Bluetooth Human
diff --git a/net/bluetooth/rfcomm/Kconfig b/net/bluetooth/rfcomm/Kconfig
index 9b9953ebf4c0..e7af2d565cea 100644
--- a/net/bluetooth/rfcomm/Kconfig
+++ b/net/bluetooth/rfcomm/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config BT_RFCOMM
 	tristate "RFCOMM protocol support"
-	depends on BT_BREDR
+	depends on BT && BT_BREDR
 	help
 	  RFCOMM provides connection oriented stream transport.  RFCOMM
 	  support is required for Dialup Networking, OBEX and other Bluetooth

base-commit: c1cec2bbbeb5922d42d28c6af1707c4f3f8647e3
-- 
2.55.0