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Open Source and information security mailing list archives
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Date: Mon, 17 Feb 2014 14:46:45 -0800 From: Kent Overstreet <kmo@...erainc.com> To: Randy Dunlap <rdunlap@...radead.org> Cc: Geert Uytterhoeven <geert@...ux-m68k.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, linux-bcache@...r.kernel.org Subject: Re: New bcache compiler warning (was: Re: bcache: Minor fixes from kbuild robot) On Mon, Feb 17, 2014 at 02:44:47PM -0800, Randy Dunlap wrote: > Could that cause a truncation? unsigned means unsigned int. > Can unsigned int be smaller (fewer bits) than the k pointer? > If so, is that OK or a problem? It's just truncating the offset of the pointer within the struct bset, which is part of a btree node - the thing that's being cast is restricted to be no bigger than a btree node, which is at most a few mb. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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