diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 8fc05b60ac7f..137eebdcfda9 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -444,6 +444,25 @@ static u8 gsm_encode_modem(const struct gsm_dlci *dlci) return modembits; } +static void gsm_hex_dump_bytes(const char *fname, const u8 *data, + unsigned long len) +{ + char *prefix; + + if (!fname) { + print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 1, data, len, + true); + return; + } + + prefix = kasprintf(GFP_KERNEL, "%s: ", fname); + if (!prefix) + return; + print_hex_dump(KERN_INFO, prefix, DUMP_PREFIX_OFFSET, 16, 1, data, len, + true); + kfree(prefix); +} + /** * gsm_print_packet - display a frame for debug * @hdr: header to print before decode @@ -508,7 +527,7 @@ static void gsm_print_packet(const char *hdr, int addr, int cr, else pr_cont("(F)"); - print_hex_dump_bytes("", DUMP_PREFIX_NONE, data, dlen); + gsm_hex_dump_bytes(NULL, data, dlen); } @@ -698,9 +717,7 @@ static void gsm_data_kick(struct gsm_mux *gsm, struct gsm_dlci *dlci) } if (debug & 4) - print_hex_dump_bytes("gsm_data_kick: ", - DUMP_PREFIX_OFFSET, - gsm->txframe, len); + gsm_hex_dump_bytes(__func__, gsm->txframe, len); if (gsmld_output(gsm, gsm->txframe, len) <= 0) break; /* FIXME: Can eliminate one SOF in many more cases */ @@ -2444,8 +2461,7 @@ static int gsmld_output(struct gsm_mux *gsm, u8 *data, int len) return -ENOSPC; } if (debug & 4) - print_hex_dump_bytes("gsmld_output: ", DUMP_PREFIX_OFFSET, - data, len); + gsm_hex_dump_bytes(__func__, data, len); return gsm->tty->ops->write(gsm->tty, data, len); } @@ -2521,8 +2537,7 @@ static void gsmld_receive_buf(struct tty_struct *tty, const unsigned char *cp, char flags = TTY_NORMAL; if (debug & 4) - print_hex_dump_bytes("gsmld_receive: ", DUMP_PREFIX_OFFSET, - cp, count); + gsm_hex_dump_bytes(__func__, cp, count); for (; count; count--, cp++) { if (fp)