Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933485AbaLBXvx (ORCPT ); Tue, 2 Dec 2014 18:51:53 -0500 Received: from mail-qa0-f51.google.com ([209.85.216.51]:37958 "EHLO mail-qa0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933271AbaLBXvv (ORCPT ); Tue, 2 Dec 2014 18:51:51 -0500 MIME-Version: 1.0 In-Reply-To: <1417561975-27627-1-git-send-email-rickard_strandqvist@spectrumdigital.se> References: <1417561975-27627-1-git-send-email-rickard_strandqvist@spectrumdigital.se> From: Bjorn Helgaas Date: Tue, 2 Dec 2014 16:51:30 -0700 Message-ID: Subject: Re: [PATCH] sound: pci: cmipci.c: Cleaning up function that are not used anywhere To: Rickard Strandqvist Cc: Jaroslav Kysela , Takashi Iwai , Benoit Taine , alsa-devel , "linux-kernel@vger.kernel.org" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Rickard, Thanks a lot for fixing cruft like this. It makes life better for everybody. I'll let the maintainer of this driver take care of this patch, but I'll just point out that your subject ("Cleaning up function ...") is slightly ambiguous because sometimes "cleanup" means simplification, not removal. My personal preference would be "Remove unused snd_cmipci_pll_rmn()" because it is unambiguous, shorter, and contains a little more information. That makes "git log --oneline" output more useful. Bjorn On Tue, Dec 2, 2014 at 4:12 PM, Rickard Strandqvist wrote: > Remove function snd_cmipci_pll_rmn() that is not used anywhere. > > This was partially found by using a static code analysis program called cppcheck. > > Signed-off-by: Rickard Strandqvist > --- > sound/pci/cmipci.c | 41 ----------------------------------------- > 1 file changed, 41 deletions(-) > > diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c > index 85ed403..e33edae 100644 > --- a/sound/pci/cmipci.c > +++ b/sound/pci/cmipci.c > @@ -615,47 +615,6 @@ static unsigned int snd_cmipci_rate_freq(unsigned int rate) > > #ifdef USE_VAR48KRATE > /* > - * Determine PLL values for frequency setup, maybe the CMI8338 (CMI8738???) > - * does it this way .. maybe not. Never get any information from C-Media about > - * that . > - */ > -static int snd_cmipci_pll_rmn(unsigned int rate, unsigned int adcmult, int *r, int *m, int *n) > -{ > - unsigned int delta, tolerance; > - int xm, xn, xr; > - > - for (*r = 0; rate < CM_MAXIMUM_RATE/adcmult; *r += (1<<5)) > - rate <<= 1; > - *n = -1; > - if (*r > 0xff) > - goto out; > - tolerance = rate*CM_TOLERANCE_RATE; > - > - for (xn = (1+2); xn < (0x1f+2); xn++) { > - for (xm = (1+2); xm < (0xff+2); xm++) { > - xr = ((CM_REFFREQ_XIN/adcmult) * xm) / xn; > - > - if (xr < rate) > - delta = rate - xr; > - else > - delta = xr - rate; > - > - /* > - * If we found one, remember this, > - * and try to find a closer one > - */ > - if (delta < tolerance) { > - tolerance = delta; > - *m = xm - 2; > - *n = xn - 2; > - } > - } > - } > -out: > - return (*n > -1); > -} > - > -/* > * Program pll register bits, I assume that the 8 registers 0xf8 up to 0xff > * are mapped onto the 8 ADC/DAC sampling frequency which can be chosen > * at the register CM_REG_FUNCTRL1 (0x04). > -- > 1.7.10.4 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/