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Date: Wed, 25 May 2011 17:57:28 -0400 (EDT) From: David Miller <davem@...emloft.net> To: uli@...e.de Cc: netdev@...r.kernel.org Subject: Re: [PATCH] via-velocity: don't annotate MAC registers as packed From: Ulrich Hecht <uli@...e.de> Date: Wed, 25 May 2011 13:07:22 +0200 > On ARM, memory accesses through packed pointers behave in unexpected > ways in GCC releases 4.3 and higher; see https://lkml.org/lkml/2011/2/2/163 > for discussion. > > In this particular case, 32-bit I/O registers are accessed bytewise, > causing incorrect setting of the DMA address registers which in turn > leads to an error interrupt storm that brings the system to a halt. > > Since the mac_regs structure does not need any packing anyway, this patch > simply removes the attribute to fix the issue. > > Signed-off-by: Ulrich Hecht <uli@...e.de> Applied. -- 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
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