From 1f5014d6a77513fa7cefe30eb7791d5856c04384 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 17 Apr 2015 22:34:18 +0200
Subject: [PATCH] Bluetooth: hidp: Fix regression with older userspace and
flags validation
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While it is not used by newer userspace anymore, the older userspace was
utilizing HIDP_VIRTUAL_CABLE_UNPLUG and HIDP_BOOT_PROTOCOL_MODE flags
when adding a new HIDP connection.
The flags validation is important, but we can not break older userspace
and with that allow providing these flags even if newer userspace does
not use them anymore.
Reported-and-tested-by: Jörg Otte <jrg.otte@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
net/bluetooth/hidp/core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index a05b9dbf14c99..9070dfd6b4adc 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -1313,7 +1313,8 @@ int hidp_connection_add(struct hidp_connadd_req *req,
struct socket *ctrl_sock,
struct socket *intr_sock)
{
- u32 valid_flags = 0;
+ u32 valid_flags = BIT(HIDP_VIRTUAL_CABLE_UNPLUG) |
+ BIT(HIDP_BOOT_PROTOCOL_MODE);
struct hidp_session *session;
struct l2cap_conn *conn;
struct l2cap_chan *chan;
--
2.30.2