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Date: Wed, 06 May 2015 10:10:51 +0100 From: Ian Abbott <abbotti@....co.uk> To: nick <xerofoify@...il.com> CC: hsweeten@...ionengravers.com, gregkh@...uxfoundation.org, chase.southwood@...il.com, ebru.akagunduz@...il.com, devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org Subject: Re: Question about the function,ni_stc_dma_channel_select_bitfield On 06/05/15 01:22, nick wrote: > Greetings All, > I am wondering if in the function,ni_stc_dma_channel_select_bitfield the line: > return 1 << channel; > is guaranteed to be below the threshold that guarantees us to not overflow on > a unsigned 32 integer due to bit wise shifting to the left. > Thanks Nick > if (channel < 4) return 1 << channel; So, yes. -- -=( Ian Abbott @ MEV Ltd. E-mail: <abbotti@....co.uk> )=- -=( Web: http://www.mev.co.uk/ )=- -- 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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