Commit 93ec4a82 authored Jun 09, 2017 by Jag Raman Committed by David S. Miller Jun 10, 2017

sparc64: print debug messages when reading from LDC channel



Print debug messages when reading from given LDC channel.

Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Reviewed-by: Aaron Young <aaron.young@oracle.com>
Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com>
Reviewed-by: Bijan Mottahedeh <bijan.mottahedeh@oracle.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 6c95483b

arch/sparc/kernel/ldc.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -1950,6 +1950,8 @@ 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;

		@@ -1965,6 +1967,9 @@ 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);

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