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Commit f5332b00 authored by Ivan Safonov's avatar Ivan Safonov Committed by Greg Kroah-Hartman
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usb: musb: cppi_dma.c: use DIV_ROUND_UP macro in cppi_next_(r|t)x_segment() 



DIV_ROUND_UP is bit useful than series of "/" and "%" operations.
Replace "/%" sequence with DIV_ROUND_UP macro.

Signed-off-by: default avatarIvan Safonov <insafonov@gmail.com>
Signed-off-by: default avatarBin Liu <b-liu@ti.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent ec1dafe8

drivers/usb/musb/cppi_dma.c

+5 −6
Original line number Diff line number Diff line
@@ -582,9 +582,10 @@ cppi_next_tx_segment(struct musb *musb, struct cppi_channel *tx) 
		maxpacket = length;

		n_bds = 1;

	} else {

		n_bds = length / maxpacket;

		if (!length || (length % maxpacket))

			n_bds++;

		if (length)

			n_bds = DIV_ROUND_UP(length, maxpacket);

		else

			n_bds = 1;

		n_bds = min(n_bds, (unsigned) NUM_TXCHAN_BD);

		length = min(n_bds * maxpacket, length);

	}
@@ -790,9 +791,7 @@ cppi_next_rx_segment(struct musb *musb, struct cppi_channel *rx, int onepacket) 
			n_bds = 0xffff / maxpacket;

			length = n_bds * maxpacket;

		} else {

			n_bds = length / maxpacket;

			if (length % maxpacket)

				n_bds++;

			n_bds = DIV_ROUND_UP(length, maxpacket);

		}

		if (n_bds == 1)

			onepacket = 1;