netdev - [PATCH v2 2/2] Bluetooth: sco: expose WBS packet length in socket option

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Date:   Wed,  9 Sep 2020 17:42:02 +0800
From:   Joseph Hwang <josephsih@...omium.org>
To:     linux-bluetooth@...r.kernel.org, marcel@...tmann.org,
        luiz.dentz@...il.com
Cc:     chromeos-bluetooth-upstreaming@...omium.org, josephsih@...gle.com,
        Joseph Hwang <josephsih@...omium.org>,
        Alain Michaud <alainm@...omium.org>,
        Abhishek Pandit-Subedi <abhishekpandit@...omium.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: [PATCH v2 2/2] Bluetooth: sco: expose WBS packet length in socket option

It is desirable to expose the wideband speech packet length via
a socket option to the user space so that the user space can set
the value correctly in configuring the sco connection.

Reviewed-by: Alain Michaud <alainm@...omium.org>
Reviewed-by: Abhishek Pandit-Subedi <abhishekpandit@...omium.org>
Signed-off-by: Joseph Hwang <josephsih@...omium.org>
---

(no changes since v1)

 net/bluetooth/sco.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index dcf7f96ff417e6..79ffcdef0b7ad5 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -1001,6 +1001,12 @@ static int sco_sock_getsockopt(struct socket *sock, int level, int optname,
 			err = -EFAULT;
 		break;
 
+	case BT_SNDMTU:
+	case BT_RCVMTU:
+		if (put_user(sco_pi(sk)->conn->mtu, (u32 __user *)optval))
+			err = -EFAULT;
+		break;
+
 	default:
 		err = -ENOPROTOOPT;
 		break;
-- 
2.28.0.526.ge36021eeef-goog