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sparc64: vcc: Add VCC debug message macros 

Add C macros to print debug messages from VCC module

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jag Raman 2017-08-15 17:02:58 -04:00 committed by David S. Miller
parent 55bd2133fc
commit f283ebd564
2 changed files with 42 additions and 0 deletions
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1
arch/sparc/kernel/ldc.c
View File

@ -1493,6 +1493,7 @@ void __ldc_print(struct ldc_channel *lp, const char *caller)
lp->tx_head, lp->tx_tail, lp->tx_num_entries, lp->tx_head, lp->tx_tail, lp->tx_num_entries,
lp->rcv_nxt, lp->snd_nxt); lp->rcv_nxt, lp->snd_nxt);
} }
EXPORT_SYMBOL(__ldc_print);
static int write_raw(struct ldc_channel *lp, const void *buf, unsigned int size) static int write_raw(struct ldc_channel *lp, const void *buf, unsigned int size)
{ {

41
drivers/tty/vcc.c
View File

@ -5,6 +5,47 @@
#include <linux/module.h> #include <linux/module.h>
#define DRV_MODULE_NAME "vcc"
#define DRV_MODULE_VERSION "1.1"
#define DRV_MODULE_RELDATE "July 1, 2017"
MODULE_DESCRIPTION("Sun LDOM virtual console concentrator driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_MODULE_VERSION);
int vcc_dbg;
int vcc_dbg_ldc;
int vcc_dbg_vio;
module_param(vcc_dbg, uint, 0664);
module_param(vcc_dbg_ldc, uint, 0664);
module_param(vcc_dbg_vio, uint, 0664);
#define VCC_DBG_DRV 0x1
#define VCC_DBG_LDC 0x2
#define VCC_DBG_PKT 0x4
#define vccdbg(f, a...) \
do { \
if (vcc_dbg & VCC_DBG_DRV) \
pr_info(f, ## a); \
} while (0) \
#define vccdbgl(l) \
do { \
if (vcc_dbg & VCC_DBG_LDC) \
ldc_print(l); \
} while (0) \
#define vccdbgp(pkt) \
do { \
if (vcc_dbg & VCC_DBG_PKT) { \
int i; \
for (i = 0; i < pkt.tag.stype; i++) \
pr_info("[%c]", pkt.data[i]); \
} \
} while (0) \
static int __init vcc_init(void) static int __init vcc_init(void)
{ {
return 0; return 0;