X25: Move qbit flag to bitfield

Moves the X25 q bit flag from char into a bitfield to allow BKL cleanup.

Signed-off-by: Andrew Hendry <andrew.hendry@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 15 insertions, 8 deletions

diff --git a/include/net/x25.h b/include/net/x25.h
index 468551ea4f1d..7b5795e1ceb2 100644
--- a/include/net/x25.h
+++ b/include/net/x25.h
@@ -113,6 +113,9 @@ enum {
 #define X25_MAX_AE_LEN          40                      /* Max num of semi-octets in AE - OSI Nw */
 #define X25_MAX_DTE_FACIL_LEN   21                      /* Max length of DTE facility params */
 
+/* Bitset in x25_sock->flags for misc flags */
+#define X25_Q_BIT_FLAG          0
+
 /**
  *      struct x25_route - x25 routing entry
  *      @node - entry in x25_list_lock
@@ -146,10 +149,11 @@ struct x25_sock {
         struct x25_address      source_addr, dest_addr;
         struct x25_neigh        *neighbour;
         unsigned int            lci, cudmatchlength;
-        unsigned char           state, condition, qbitincl, intflag, accptapprv;
+        unsigned char           state, condition, intflag, accptapprv;
         unsigned short          vs, vr, va, vl;
         unsigned long           t2, t21, t22, t23;
         unsigned short          fraglen;
+        unsigned long           flags;
         struct sk_buff_head     ack_queue;
         struct sk_buff_head     fragment_queue;
         struct sk_buff_head     interrupt_in_queue;
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 296e65e01064..720534ce1fd9 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -465,7 +465,10 @@ static int x25_setsockopt(struct socket *sock, int level, int optname,
         if (get_user(opt, (int __user *)optval))
                 goto out;
 
-        x25_sk(sk)->qbitincl = !!opt;
+        if (opt)
+                set_bit(X25_Q_BIT_FLAG, &x25_sk(sk)->flags);
+        else
+                clear_bit(X25_Q_BIT_FLAG, &x25_sk(sk)->flags);
         rc = 0;
 out:
         unlock_kernel();
@@ -496,7 +499,7 @@ static int x25_getsockopt(struct socket *sock, int level, int optname,
         if (put_user(len, optlen))
                 goto out;
 
-        val = x25_sk(sk)->qbitincl;
+        val = test_bit(X25_Q_BIT_FLAG, &x25_sk(sk)->flags);
         rc = copy_to_user(optval, &val, len) ? -EFAULT : 0;
 out:
         unlock_kernel();
@@ -632,8 +635,8 @@ static struct sock *x25_make_new(struct sock *osk)
         x25->t22        = ox25->t22;
         x25->t23        = ox25->t23;
         x25->t2         = ox25->t2;
+        x25->flags      = ox25->flags;
         x25->facilities = ox25->facilities;
-        x25->qbitincl   = ox25->qbitincl;
         x25->dte_facilities = ox25->dte_facilities;
         x25->cudmatchlength = ox25->cudmatchlength;
         x25->accptapprv = ox25->accptapprv;
@@ -1186,7 +1189,7 @@ static int x25_sendmsg(struct kiocb *iocb, struct socket *sock,
          *      If the Q BIT Include socket option is in force, the first
          *      byte of the user data is the logical value of the Q Bit.
          */
-        if (x25->qbitincl) {
+        if (test_bit(X25_Q_BIT_FLAG, &x25->flags)) {
                 qbit = skb->data[0];
                 skb_pull(skb, 1);
         }
@@ -1242,7 +1245,7 @@ static int x25_sendmsg(struct kiocb *iocb, struct socket *sock,
                 len = rc;
                 if (rc < 0)
                         kfree_skb(skb);
-                else if (x25->qbitincl)
+                else if (test_bit(X25_Q_BIT_FLAG, &x25->flags))
                         len++;
         }
 
@@ -1307,7 +1310,7 @@ static int x25_recvmsg(struct kiocb *iocb, struct socket *sock,
                 /*
                  *      No Q bit information on Interrupt data.
                  */
-                if (x25->qbitincl) {
+                if (test_bit(X25_Q_BIT_FLAG, &x25->flags)) {
                         asmptr  = skb_push(skb, 1);
                         *asmptr = 0x00;
                 }
@@ -1325,7 +1328,7 @@ static int x25_recvmsg(struct kiocb *iocb, struct socket *sock,
                 skb_pull(skb, x25->neighbour->extended ?
                                 X25_EXT_MIN_LEN : X25_STD_MIN_LEN);
 
-                if (x25->qbitincl) {
+                if (test_bit(X25_Q_BIT_FLAG, &x25->flags)) {
                         asmptr  = skb_push(skb, 1);
                         *asmptr = qbit;
                 }