Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 7526ff76 authored by Hollis Blanchard's avatar Hollis Blanchard Committed by Paul Mackerras
Browse files

powerpc: Remove superfluous WARN_ON() from dma-noncoherent.c 



I can't tell why this WARN_ON exists, and there's no comment
explaining it.  Whether the pmd is present or not, pte_alloc_kernel()
seems to handle both cases.

Booting a 440 kernel with 64K PAGE_SIZE triggers the warning, but boot
successfully completes and I see no problems beyond that.

Signed-off-by: default avatarHollis Blanchard <hollisb@us.ibm.com>
Acked-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent efc3624c

arch/powerpc/lib/dma-noncoherent.c

+0 −1
Original line number Diff line number Diff line
@@ -320,7 +320,6 @@ static int __init dma_alloc_init(void) 
			ret = -ENOMEM;

			break;

		}

		WARN_ON(!pmd_none(*pmd));



		pte = pte_alloc_kernel(pmd, CONSISTENT_BASE);

		if (!pte) {