diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-06-27 20:28:02 +0200 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-06-27 20:28:02 +0200 |
commit | 31cafd958932a90174118ad062fdc37ffb6bf31c (patch) | |
tree | 21f04c11d9e759c1f65cfaa1e4fbd79ee1e60753 /drivers/isdn/gigaset/isocdata.c | |
parent | Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6 (diff) | |
parent | phylib: Add autoload support for the LXT973 phy. (diff) | |
download | linux-31cafd958932a90174118ad062fdc37ffb6bf31c.tar.xz linux-31cafd958932a90174118ad062fdc37ffb6bf31c.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (52 commits)
phylib: Add autoload support for the LXT973 phy.
ISDN: hysdn, fix potential NULL dereference
vxge: fix memory leak in vxge_alloc_msix() error path
isdn/gigaset: correct CAPI connection state storage
isdn/gigaset: encode HLC and BC together
isdn/gigaset: correct CAPI DATA_B3 Delivery Confirmation
isdn/gigaset: correct CAPI voice connection encoding
isdn/gigaset: honor CAPI application's buffer size request
cpmac: do not leak struct net_device on phy_connect errors
smc91c92_cs: fix the problem that lan & modem does not work simultaneously
ipv6: fix NULL reference in proxy neighbor discovery
Bluetooth: Bring back var 'i' increment
xfrm: check bundle policy existance before dereferencing it
sky2: enable rx/tx in sky2_phy_reinit()
cnic: Disable statistics initialization for eth clients that do not support statistics
net: add dependency on fw class module to qlcnic and netxen_nic
snmp: fix SNMP_ADD_STATS()
hso: remove setting of low_latency flag
udp: Fix bogus UFO packet generation
lasi82596: fix netdev_mc_count conversion
...
Diffstat (limited to 'drivers/isdn/gigaset/isocdata.c')
-rw-r--r-- | drivers/isdn/gigaset/isocdata.c | 72 |
1 files changed, 25 insertions, 47 deletions
diff --git a/drivers/isdn/gigaset/isocdata.c b/drivers/isdn/gigaset/isocdata.c index 16fd3bd48883..2dfd346fc889 100644 --- a/drivers/isdn/gigaset/isocdata.c +++ b/drivers/isdn/gigaset/isocdata.c @@ -500,19 +500,18 @@ int gigaset_isoc_buildframe(struct bc_state *bcs, unsigned char *in, int len) */ static inline void hdlc_putbyte(unsigned char c, struct bc_state *bcs) { - bcs->fcs = crc_ccitt_byte(bcs->fcs, c); - if (unlikely(bcs->skb == NULL)) { + bcs->rx_fcs = crc_ccitt_byte(bcs->rx_fcs, c); + if (bcs->rx_skb == NULL) /* skipping */ return; - } - if (unlikely(bcs->skb->len == SBUFSIZE)) { + if (bcs->rx_skb->len >= bcs->rx_bufsize) { dev_warn(bcs->cs->dev, "received oversized packet discarded\n"); bcs->hw.bas->giants++; - dev_kfree_skb_any(bcs->skb); - bcs->skb = NULL; + dev_kfree_skb_any(bcs->rx_skb); + bcs->rx_skb = NULL; return; } - *__skb_put(bcs->skb, 1) = c; + *__skb_put(bcs->rx_skb, 1) = c; } /* hdlc_flush @@ -521,18 +520,13 @@ static inline void hdlc_putbyte(unsigned char c, struct bc_state *bcs) static inline void hdlc_flush(struct bc_state *bcs) { /* clear skb or allocate new if not skipping */ - if (likely(bcs->skb != NULL)) - skb_trim(bcs->skb, 0); - else if (!bcs->ignore) { - bcs->skb = dev_alloc_skb(SBUFSIZE + bcs->cs->hw_hdr_len); - if (bcs->skb) - skb_reserve(bcs->skb, bcs->cs->hw_hdr_len); - else - dev_err(bcs->cs->dev, "could not allocate skb\n"); - } + if (bcs->rx_skb != NULL) + skb_trim(bcs->rx_skb, 0); + else + gigaset_new_rx_skb(bcs); /* reset packet state */ - bcs->fcs = PPP_INITFCS; + bcs->rx_fcs = PPP_INITFCS; } /* hdlc_done @@ -549,7 +543,7 @@ static inline void hdlc_done(struct bc_state *bcs) hdlc_flush(bcs); return; } - procskb = bcs->skb; + procskb = bcs->rx_skb; if (procskb == NULL) { /* previous error */ gig_dbg(DEBUG_ISO, "%s: skb=NULL", __func__); @@ -560,8 +554,8 @@ static inline void hdlc_done(struct bc_state *bcs) bcs->hw.bas->runts++; dev_kfree_skb_any(procskb); gigaset_isdn_rcv_err(bcs); - } else if (bcs->fcs != PPP_GOODFCS) { - dev_notice(cs->dev, "frame check error (0x%04x)\n", bcs->fcs); + } else if (bcs->rx_fcs != PPP_GOODFCS) { + dev_notice(cs->dev, "frame check error\n"); bcs->hw.bas->fcserrs++; dev_kfree_skb_any(procskb); gigaset_isdn_rcv_err(bcs); @@ -574,13 +568,8 @@ static inline void hdlc_done(struct bc_state *bcs) bcs->hw.bas->goodbytes += len; gigaset_skb_rcvd(bcs, procskb); } - - bcs->skb = dev_alloc_skb(SBUFSIZE + cs->hw_hdr_len); - if (bcs->skb) - skb_reserve(bcs->skb, cs->hw_hdr_len); - else - dev_err(cs->dev, "could not allocate skb\n"); - bcs->fcs = PPP_INITFCS; + gigaset_new_rx_skb(bcs); + bcs->rx_fcs = PPP_INITFCS; } /* hdlc_frag @@ -597,8 +586,8 @@ static inline void hdlc_frag(struct bc_state *bcs, unsigned inbits) dev_notice(bcs->cs->dev, "received partial byte (%d bits)\n", inbits); bcs->hw.bas->alignerrs++; gigaset_isdn_rcv_err(bcs); - __skb_trim(bcs->skb, 0); - bcs->fcs = PPP_INITFCS; + __skb_trim(bcs->rx_skb, 0); + bcs->rx_fcs = PPP_INITFCS; } /* bit counts lookup table for HDLC bit unstuffing @@ -847,7 +836,6 @@ static inline void hdlc_unpack(unsigned char *src, unsigned count, static inline void trans_receive(unsigned char *src, unsigned count, struct bc_state *bcs) { - struct cardstate *cs = bcs->cs; struct sk_buff *skb; int dobytes; unsigned char *dst; @@ -857,17 +845,11 @@ static inline void trans_receive(unsigned char *src, unsigned count, hdlc_flush(bcs); return; } - skb = bcs->skb; - if (unlikely(skb == NULL)) { - bcs->skb = skb = dev_alloc_skb(SBUFSIZE + cs->hw_hdr_len); - if (!skb) { - dev_err(cs->dev, "could not allocate skb\n"); - return; - } - skb_reserve(skb, cs->hw_hdr_len); - } + skb = bcs->rx_skb; + if (skb == NULL) + skb = gigaset_new_rx_skb(bcs); bcs->hw.bas->goodbytes += skb->len; - dobytes = TRANSBUFSIZE - skb->len; + dobytes = bcs->rx_bufsize - skb->len; while (count > 0) { dst = skb_put(skb, count < dobytes ? count : dobytes); while (count > 0 && dobytes > 0) { @@ -879,14 +861,10 @@ static inline void trans_receive(unsigned char *src, unsigned count, dump_bytes(DEBUG_STREAM_DUMP, "rcv data", skb->data, skb->len); gigaset_skb_rcvd(bcs, skb); - bcs->skb = skb = - dev_alloc_skb(SBUFSIZE + cs->hw_hdr_len); - if (!skb) { - dev_err(cs->dev, "could not allocate skb\n"); + skb = gigaset_new_rx_skb(bcs); + if (skb == NULL) return; - } - skb_reserve(skb, cs->hw_hdr_len); - dobytes = TRANSBUFSIZE; + dobytes = bcs->rx_bufsize; } } } |