From 7526ff76f84178f8c926de7e590e4c5f9d4a2e62 Mon Sep 17 00:00:00 2001 From: Hollis Blanchard Date: Mon, 10 Nov 2008 14:33:36 +0000 Subject: [PATCH] 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: Hollis Blanchard Acked-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- arch/powerpc/lib/dma-noncoherent.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/powerpc/lib/dma-noncoherent.c b/arch/powerpc/lib/dma-noncoherent.c index 31734c0969cd..2b1ce1849344 100644 --- a/arch/powerpc/lib/dma-noncoherent.c +++ b/arch/powerpc/lib/dma-noncoherent.c @@ -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) {