$ grep -rn "_L2CAP" *
arch/powerpc/configs/pmac32_defconfig:115:CONFIG_BT_L2CAP=y
arch/powerpc/configs/ppc6xx_defconfig:353:CONFIG_BT_L2CAP=y
arch/powerpc/configs/wii_defconfig:42:CONFIG_BT_L2CAP=y
arch/powerpc/configs/c2k_defconfig:135:CONFIG_BT_L2CAP=y
arch/powerpc/configs/ps3_defconfig:56:CONFIG_BT_L2CAP=y
arch/avr32/configs/atngw100_mrmt_defconfig:40:CONFIG_BT_L2CAP=m
arch/arm/configs/am200epdkit_defconfig:37:CONFIG_BT_L2CAP=m
arch/arm/configs/magician_defconfig:51:CONFIG_BT_L2CAP=m
arch/arm/configs/badge4_defconfig:27:CONFIG_BT_L2CAP=m
arch/arm/configs/simpad_defconfig:36:CONFIG_BT_L2CAP=m
arch/arm/configs/trizeps4_defconfig:52:CONFIG_BT_L2CAP=m
arch/arm/configs/viper_defconfig:40:CONFIG_BT_L2CAP=m
arch/arm/configs/omap1_defconfig:85:CONFIG_BT_L2CAP=y
arch/arm/configs/mini2440_defconfig:61:CONFIG_BT_L2CAP=m
arch/arm/configs/spitz_defconfig:69:CONFIG_BT_L2CAP=m
arch/arm/configs/colibri_pxa270_defconfig:48:CONFIG_BT_L2CAP=m
arch/arm/configs/zeus_defconfig:35:CONFIG_BT_L2CAP=m
arch/arm/configs/ezx_defconfig:155:CONFIG_BT_L2CAP=y
arch/arm/configs/cm_x300_defconfig:42:CONFIG_BT_L2CAP=y
arch/arm/configs/nhk8815_defconfig:41:CONFIG_BT_L2CAP=m
arch/arm/configs/em_x270_defconfig:41:CONFIG_BT_L2CAP=m
arch/arm/configs/cm_x2xx_defconfig:46:CONFIG_BT_L2CAP=m
arch/arm/configs/corgi_defconfig:72:CONFIG_BT_L2CAP=m
arch/mips/configs/db1000_defconfig:106:CONFIG_BT_L2CAP=y
arch/mips/configs/lemote2f_defconfig:89:CONFIG_BT_L2CAP=y
arch/mips/configs/mtx1_defconfig:228:CONFIG_BT_L2CAP=y
drivers/net/wireless/bcm4330/include/proto/802.11_bta.h:33:#define BTA_PROT_L2CAP				1
drivers/net/wireless/bcm4330/dhd_linux.c:1499:		    lsh->type == HTON16(BTA_PROT_L2CAP)) {
drivers/net/wireless/bcm4330/dhd_linux.c:1636:		    ntoh16(lsh->type) == BTA_PROT_L2CAP) {
drivers/net/wireless/bcm4330/dhd_bta.c:114:					    ntoh16(lsh->type) == BTA_PROT_L2CAP) {
drivers/net/wireless/bcm4330/dhd_bta.c:261:	lsh->type = HTON16(BTA_PROT_L2CAP);
drivers/net/wireless/bcmdhd/include/proto/802.11_bta.h:15:#define BTA_PROT_L2CAP				1
drivers/net/wireless/bcmdhd/dhd_linux.c:1810:		    lsh->type == HTON16(BTA_PROT_L2CAP)) {
drivers/net/wireless/bcmdhd/dhd_linux.c:2024:		    ntoh16(lsh->type) == BTA_PROT_L2CAP) {
drivers/net/wireless/bcmdhd/dhd_bta.c:99:					    ntoh16(lsh->type) == BTA_PROT_L2CAP) {
drivers/net/wireless/bcmdhd/dhd_bta.c:246:	lsh->type = HTON16(BTA_PROT_L2CAP);
include/net/bluetooth/bluetooth.h:45:#define BTPROTO_L2CAP	0
include/net/bluetooth/bluetooth.h:55:#define SOL_L2CAP	6
include/net/bluetooth/l2cap.h:27:#ifndef __L2CAP_H
include/net/bluetooth/l2cap.h:28:#define __L2CAP_H
include/net/bluetooth/l2cap.h:137:#define L2CAP_FC_L2CAP		0x02
include/net/bluetooth/l2cap.h:897:#endif /* __L2CAP_H */
include/net/bluetooth/rfcomm.h:37:#define RFCOMM_MAX_L2CAP_MTU	1013
net/bluetooth/rfcomm/core.c:43:static unsigned int l2cap_mtu = RFCOMM_MAX_L2CAP_MTU;
net/bluetooth/rfcomm/core.c:201:	err = sock_create_kern(PF_BLUETOOTH, SOCK_SEQPACKET, BTPROTO_L2CAP, sock);
net/bluetooth/l2cap_core.c:50:static u8 l2cap_fixed_chan[8] = { L2CAP_FC_L2CAP | L2CAP_FC_CONNLESS, };
net/bluetooth/l2cap_sock.c:500:	if (level == SOL_L2CAP)
net/bluetooth/l2cap_sock.c:750:	if (level == SOL_L2CAP)
net/bluetooth/l2cap_sock.c:1187:	sk = l2cap_sock_alloc(sock_net(parent), NULL, BTPROTO_L2CAP,
net/bluetooth/l2cap_sock.c:1194:	bt_sock_reclassify_lock(sk, BTPROTO_L2CAP);
net/bluetooth/l2cap_sock.c:1595:	err = bt_sock_register(BTPROTO_L2CAP, &l2cap_sock_family_ops);
net/bluetooth/l2cap_sock.c:1605:		bt_sock_unregister(BTPROTO_L2CAP);
net/bluetooth/l2cap_sock.c:1621:	bt_sock_unregister(BTPROTO_L2CAP);
net/bluetooth/af_bluetooth.c:43:	"sk_lock-AF_BLUETOOTH-BTPROTO_L2CAP",
net/bluetooth/af_bluetooth.c:55:	"slock-AF_BLUETOOTH-BTPROTO_L2CAP",