From mboxrd@z Thu Jan 1 00:00:00 1970 From: "John W. Linville" Subject: Re: [PATCH] rtlwifi/rtl8192c: in _rtl92c_phy_calculate_bit_shift remove comparing bitmask against 1 Date: Wed, 8 Feb 2012 14:57:44 -0500 Message-ID: <20120208195744.GD2929@tuxdriver.com> References: <1327993863-6810-1-git-send-email-devendra.aaru@gmail.com> <1327995440.1804.16.camel@joe2Laptop> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: "Devendra.Naga" , Larry.Finger@lwfinger.net, chaoming_li@realsil.com.cn, paul.gortmaker@windriver.com, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org To: Joe Perches Return-path: Content-Disposition: inline In-Reply-To: <1327995440.1804.16.camel@joe2Laptop> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Mon, Jan 30, 2012 at 11:37:20PM -0800, Joe Perches wrote: > On Tue, 2012-01-31 at 02:11 -0500, Devendra.Naga wrote: > > From: "Devendra.Naga" > [] > > diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c > [] > > @@ -177,7 +177,7 @@ u32 _rtl92c_phy_calculate_bit_shift(u32 bitmask) > > u32 i; > > > > for (i = 0; i <= 31; i++) { > > - if (((bitmask >> i) & 0x1) == 1) > > + if ((bitmask >> i) & 0x1) > > break; > > } > > return i; > > Perhaps this is simpler and faster: > > { > u32 rtn = (u32)ffs((int)bitmask); > if (rtn) > return rtn - 1; > return 32; > } Are you planning to revise your patch based on Joe's suggestion? -- John W. Linville Someday the world will need a hero, and you linville@tuxdriver.com might be all we have. Be ready.