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Subject[PATCH 2.4] Export CRC routine to drivers
From
ir241_export_crc-3.diff :
o [FEATURE] Export CRC16 helper so that drivers can use it


diff -u -p linux/include/net/irda/crc.d3.h linux/include/net/irda/crc.h
--- linux/include/net/irda/crc.d3.h Mon Dec 2 16:02:41 2002
+++ linux/include/net/irda/crc.h Mon Dec 2 16:03:58 2002
@@ -28,6 +28,6 @@ static inline __u16 irda_fcs(__u16 fcs,
}

/* Recompute the FCS with len bytes appended. */
-unsigned short crc_calc( __u16 fcs, __u8 const *buf, size_t len);
+unsigned short irda_calc_crc16( __u16 fcs, __u8 const *buf, size_t len);

#endif
diff -u -p linux/net/irda/crc.d3.c linux/net/irda/crc.c
--- linux/net/irda/crc.d3.c Mon Dec 2 16:02:53 2002
+++ linux/net/irda/crc.c Mon Dec 2 16:03:58 2002
@@ -57,7 +57,7 @@ __u16 const irda_crc16_table[256] =
0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78
};

-unsigned short crc_calc( __u16 fcs, __u8 const *buf, size_t len)
+unsigned short irda_calc_crc16( __u16 fcs, __u8 const *buf, size_t len)
{
while (len--)
fcs = irda_fcs(fcs, *buf++);
diff -u -p linux/net/irda/irsyms.d3.c linux/net/irda/irsyms.c
--- linux/net/irda/irsyms.d3.c Mon Dec 2 16:03:22 2002
+++ linux/net/irda/irsyms.c Mon Dec 2 16:04:38 2002
@@ -44,6 +44,7 @@
#include <net/irda/wrapper.h>
#include <net/irda/timer.h>
#include <net/irda/parameters.h>
+#include <net/irda/crc.h>

extern struct proc_dir_entry *proc_irda;

@@ -158,6 +159,8 @@ EXPORT_SYMBOL(irda_task_delete);

EXPORT_SYMBOL(async_wrap_skb);
EXPORT_SYMBOL(async_unwrap_char);
+EXPORT_SYMBOL(irda_calc_crc16);
+EXPORT_SYMBOL(irda_crc16_table);
EXPORT_SYMBOL(irda_start_timer);
EXPORT_SYMBOL(setup_dma);
EXPORT_SYMBOL(infrared_mode);
-
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