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Date: Sat, 29 Nov 2014 12:01:03 +0100 From: Lino Sanfilippo <LinoSanfilippo@....de> To: Florian Fainelli <f.fainelli@...il.com>, Sudip Mukherjee <sudipm.mukherjee@...il.com>, Hisashi T Fujinaka <htodd@...fifty.com> CC: Jeff Kirsher <jeffrey.t.kirsher@...el.com>, Jesse Brandeburg <jesse.brandeburg@...el.com>, Bruce Allan <bruce.w.allan@...el.com>, Carolyn Wyborny <carolyn.wyborny@...el.com>, Don Skidmore <donald.c.skidmore@...el.com>, Greg Rose <gregory.v.rose@...el.com>, Matthew Vick <matthew.vick@...el.com>, John Ronciak <john.ronciak@...el.com>, Mitch Williams <mitch.a.williams@...el.com>, Linux NICS <linux.nics@...el.com>, e1000-devel@...ts.sourceforge.net, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] e1000: remove unused variables On 29.11.2014 00:28, Florian Fainelli wrote: > Also, if you do a read that is not stored in any return value, the > compiler is now free to remove that actual read, This does not apply to reads from iomem (see "volatile" specifier in readl()). Regards, Lino -- 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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