Print debug messages when reading from given LDC channel. Signed-off-by: Jagannathan Raman <jag.raman@xxxxxxxxxx> Reviewed-by: Aaron Young <aaron.young@xxxxxxxxxx> Reviewed-by: Alexandre Chartre <alexandre.chartre@xxxxxxxxxx> Reviewed-by: Bijan Mottahedeh <bijan.mottahedeh@xxxxxxxxxx> Reviewed-by: Liam Merwick <liam.merwick@xxxxxxxxxx> --- arch/sparc/kernel/ldc.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c index f53f672..1471d57 100644 --- a/arch/sparc/kernel/ldc.c +++ b/arch/sparc/kernel/ldc.c @@ -1985,6 +1985,8 @@ int ldc_read(struct ldc_channel *lp, void *buf, unsigned int size) unsigned long flags; int err; + ldcdbg(RX, "%s: entered size=%d\n", __func__, size); + if (!buf) return -EINVAL; @@ -2000,6 +2002,9 @@ int ldc_read(struct ldc_channel *lp, void *buf, unsigned int size) spin_unlock_irqrestore(&lp->lock, flags); + ldcdbg(RX, "%s: mode=%d, head=%lu, tail=%lu rv=%d\n", __func__, + lp->cfg.mode, lp->rx_head, lp->rx_tail, err); + return err; } EXPORT_SYMBOL(ldc_read); -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
