netdev - bnx2 fails to compile on parisc because of missing get_dma

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 16 Jun 2010 20:13:49 -0500
From:	James Bottomley <JBottomley@...ell.com>
To:	netdev@...r.kernel.org, linux-parisc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Cc:	Michael Chan <mchan@...adcom.com>
Subject: bnx2 fails to compile on parisc because of missing get_dma_ops()

I'm not quite sure whose fault this one is.

However, this code in bnx2.c:

		if (!get_dma_ops(&pdev->dev)->sync_single_for_cpu) {
			next_rx_buf =
				&rxr->rx_buf_ring[
					RX_RING_IDX(NEXT_RX_BD(sw_cons))];
			prefetch(next_rx_buf->desc);
		}

Looks remarkably fragile: what exactly is it trying to do?

The commit that causes the problem:

commit a33fa66bcf365ffe5b79d1ae1d3582cc261ae56e
Author: Michael Chan <mchan@...adcom.com>
Date:   Thu May 6 08:58:13 2010 +0000

    bnx2: Add prefetches to rx path.

Looks fairly innocuous by the description.

Should parisc have a get_dma_ops()?  We don't need one because our dma
ops are per platform not per bus.

James


--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html