diff options
Diffstat (limited to 'drivers/tty/n_gsm.c')
| -rw-r--r-- | drivers/tty/n_gsm.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index e7ba15522215..5e516f5cac5a 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -69,6 +69,7 @@ module_param(debug, int, 0600); #define DBG_DATA BIT(2) /* Data transmission details. */ #define DBG_ERRORS BIT(3) /* Details for fail conditions. */ #define DBG_TTY BIT(4) /* Transmission statistics for DLCI TTYs. */ +#define DBG_PAYLOAD BIT(5) /* Limits DBG_DUMP to payload frames. */ /* Defaults: these are from the specification */ @@ -598,6 +599,10 @@ static void gsm_print_packet(const char *hdr, int addr, int cr, { if (!(debug & DBG_DUMP)) return; + /* Only show user payload frames if debug & DBG_PAYLOAD */ + if (!(debug & DBG_PAYLOAD) && addr != 0) + if ((control & ~PF) == UI || (control & ~PF) == UIH) + return; pr_info("%s %d) %c: ", hdr, addr, "RC"[cr]); |