On Thursday 10 September 2020 14:04:02 Joseph Hwang wrote: > This patch defines new getsockopt options BT_SNDMTU/BT_RCVMTU > for SCO socket to be compatible with other bluetooth sockets. > These new options return the same value as option SCO_OPTIONS > which is already present on existing kernels. > > Reviewed-by: Alain Michaud <alainm@xxxxxxxxxxxx> > Reviewed-by: Abhishek Pandit-Subedi <abhishekpandit@xxxxxxxxxxxx> > Signed-off-by: Joseph Hwang <josephsih@xxxxxxxxxxxx> Looks good, Reviewed-by: Pali Rohár <pali@xxxxxxxxxx> > --- > > Changes in v3: > - Fixed the commit message. > > Changes in v2: > - Used BT_SNDMTU/BT_RCVMTU instead of creating a new opt name. > - Used the existing conn->mtu instead of creating a new member > in struct sco_pinfo. > - Noted that the old SCO_OPTIONS in sco_sock_getsockopt_old() > would just work as it uses sco_pi(sk)->conn->mtu. > > 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; > -- > 2.28.0.618.gf4bc123cb7-goog >
