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Date: Mon, 31 May 2010 08:22:12 +0800 From: Junchang Wang <junchangwang@...il.com> To: Jeff Garzik <jeff@...zik.org> Cc: davem@...emloft.net, romieu@...zoreil.com, netdev@...r.kernel.org Subject: Re: [Patch]8139too: remove unnecessary cast of ioread32()'s return value On Sun, May 30, 2010 at 01:35:51PM -0400, Jeff Garzik wrote: > >Have you verified this matches all architectures definition of readl()? > Hi Jeff, Thanks for your question. Just browsed the kernel. ioread32() returns either unsigned int or u32 in all arches. There is no arch that uses unsigned long or something else. Secondly, There's a bug if an arch returns unsigned long. What happen when programmers invoke sizeof(ioread32()) on 64-bit platforms? --Junchang -- 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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