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authorPaul Fulghum <paulkf@microgate.com>2006-12-07 05:40:24 +0100
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-07 17:39:45 +0100
commitaf69c7f924b272927f9aea378f34f4548d3888d9 (patch)
tree93333028e018567d85ed94b9192e501ab2f3c58c /drivers/char/synclink.c
parent[PATCH] remove NFSD_OPTIMIZE_SPACE (diff)
downloadlinux-af69c7f924b272927f9aea378f34f4548d3888d9.tar.xz
linux-af69c7f924b272927f9aea378f34f4548d3888d9.zip
[PATCH] generic HDLC synclink config mismatch fix
Fix compile errors on mismatch between generic HDLC and synclink drivers. Notes: generic HDLC support for synclink drivers is *optional* so you can't just use depend on in Kconfig This solution is deemed the best after 7 months of review and criticism by many developers including AKPM. Read the threads on LKML before posting about this solution. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/char/synclink.c')
-rw-r--r--drivers/char/synclink.c26
1 files changed, 14 insertions, 12 deletions
diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
index 147c30da81ea..645187b9141e 100644
--- a/drivers/char/synclink.c
+++ b/drivers/char/synclink.c
@@ -101,8 +101,10 @@
#include <linux/hdlc.h>
#include <linux/dma-mapping.h>
-#ifdef CONFIG_HDLC_MODULE
-#define CONFIG_HDLC 1
+#if defined(CONFIG_HDLC) || (defined(CONFIG_HDLC_MODULE) && defined(CONFIG_SYNCLINK_MODULE))
+#define SYNCLINK_GENERIC_HDLC 1
+#else
+#define SYNCLINK_GENERIC_HDLC 0
#endif
#define GET_USER(error,value,addr) error = get_user(value,addr)
@@ -320,7 +322,7 @@ struct mgsl_struct {
int dosyncppp;
spinlock_t netlock;
-#ifdef CONFIG_HDLC
+#if SYNCLINK_GENERIC_HDLC
struct net_device *netdev;
#endif
};
@@ -728,7 +730,7 @@ static void usc_loopmode_send_done( struct mgsl_struct * info );
static int mgsl_ioctl_common(struct mgsl_struct *info, unsigned int cmd, unsigned long arg);
-#ifdef CONFIG_HDLC
+#if SYNCLINK_GENERIC_HDLC
#define dev_to_port(D) (dev_to_hdlc(D)->priv)
static void hdlcdev_tx_done(struct mgsl_struct *info);
static void hdlcdev_rx(struct mgsl_struct *info, char *buf, int size);
@@ -1277,7 +1279,7 @@ static void mgsl_isr_transmit_status( struct mgsl_struct *info )
info->drop_rts_on_tx_done = 0;
}
-#ifdef CONFIG_HDLC
+#if SYNCLINK_GENERIC_HDLC
if (info->netcount)
hdlcdev_tx_done(info);
else
@@ -1342,7 +1344,7 @@ static void mgsl_isr_io_pin( struct mgsl_struct *info )
info->input_signal_events.dcd_up++;
} else
info->input_signal_events.dcd_down++;
-#ifdef CONFIG_HDLC
+#if SYNCLINK_GENERIC_HDLC
if (info->netcount) {
if (status & MISCSTATUS_DCD)
netif_carrier_on(info->netdev);
@@ -4313,7 +4315,7 @@ static void mgsl_add_device( struct mgsl_struct *info )
info->max_frame_size );
}
-#ifdef CONFIG_HDLC
+#if SYNCLINK_GENERIC_HDLC
hdlcdev_init(info);
#endif
@@ -4471,7 +4473,7 @@ static void synclink_cleanup(void)
info = mgsl_device_list;
while(info) {
-#ifdef CONFIG_HDLC
+#if SYNCLINK_GENERIC_HDLC
hdlcdev_exit(info);
#endif
mgsl_release_resources(info);
@@ -6645,7 +6647,7 @@ static int mgsl_get_rx_frame(struct mgsl_struct *info)
return_frame = 1;
}
framesize = 0;
-#ifdef CONFIG_HDLC
+#if SYNCLINK_GENERIC_HDLC
{
struct net_device_stats *stats = hdlc_stats(info->netdev);
stats->rx_errors++;
@@ -6721,7 +6723,7 @@ static int mgsl_get_rx_frame(struct mgsl_struct *info)
*ptmp);
}
-#ifdef CONFIG_HDLC
+#if SYNCLINK_GENERIC_HDLC
if (info->netcount)
hdlcdev_rx(info,info->intermediate_rxbuffer,framesize);
else
@@ -7625,7 +7627,7 @@ static void mgsl_tx_timeout(unsigned long context)
spin_unlock_irqrestore(&info->irq_spinlock,flags);
-#ifdef CONFIG_HDLC
+#if SYNCLINK_GENERIC_HDLC
if (info->netcount)
hdlcdev_tx_done(info);
else
@@ -7701,7 +7703,7 @@ static int usc_loopmode_active( struct mgsl_struct * info)
return usc_InReg( info, CCSR ) & BIT7 ? 1 : 0 ;
}
-#ifdef CONFIG_HDLC
+#if SYNCLINK_GENERIC_HDLC
/**
* called by generic HDLC layer when protocol selected (PPP, frame relay, etc.)