linux-kernel - RE: [PATCH RESEND 5/7] ASoC: SOF: Intel: export hda_sdw_bpt_get_buf_size

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Message-ID: <SJ2PR11MB84240C3B09792E128D1D057EFFFBA@SJ2PR11MB8424.namprd11.prod.outlook.com>
Date: Thu, 30 Oct 2025 12:05:23 +0000
From: "Liao, Bard" <bard.liao@...el.com>
To: Mark Brown <broonie@...nel.org>, Bard Liao
	<yung-chuan.liao@...ux.intel.com>
CC: "linux-sound@...r.kernel.org" <linux-sound@...r.kernel.org>,
	"vkoul@...nel.org" <vkoul@...nel.org>, "tiwai@...e.de" <tiwai@...e.de>,
	"vinod.koul@...aro.org" <vinod.koul@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"pierre-louis.bossart@...ux.dev" <pierre-louis.bossart@...ux.dev>
Subject: RE: [PATCH RESEND 5/7] ASoC: SOF: Intel: export
 hda_sdw_bpt_get_buf_size_aligment



> -----Original Message-----
> From: Mark Brown <broonie@...nel.org>
> Sent: Thursday, October 30, 2025 7:17 PM
> To: Bard Liao <yung-chuan.liao@...ux.intel.com>
> Cc: linux-sound@...r.kernel.org; vkoul@...nel.org; tiwai@...e.de;
> vinod.koul@...aro.org; linux-kernel@...r.kernel.org; pierre-
> louis.bossart@...ux.dev; Liao, Bard <bard.liao@...el.com>
> Subject: Re: [PATCH RESEND 5/7] ASoC: SOF: Intel: export
> hda_sdw_bpt_get_buf_size_aligment
> 
> On Thu, Oct 30, 2025 at 03:02:51PM +0800, Bard Liao wrote:
> 
> > +unsigned int hda_sdw_bpt_get_buf_size_alignment(unsigned int
> dma_bandwidth)
> > +{
> > +	unsigned int num_channels = DIV_ROUND_UP(dma_bandwidth,
> BPT_FREQUENCY * 32);
> > +	unsigned int data_block = num_channels * 4;
> > +	unsigned int alignment = lcm(data_block, FIFO_ALIGNMENT);
> > +
> > +	return alignment;
> > +}
> > +EXPORT_SYMBOL_NS(hda_sdw_bpt_get_buf_size_alignment,
> "SND_SOC_SOF_INTEL_HDA_SDW_BPT");
> 
> The rest of ASoC is _GPL?

All functions exported in hda-sdw-bpt.c are with EXPORT_SYMBOL_NS. 
I suppose it is ok?