linux-kernel - RE: [PATCH v12 19/23] crypto: acomp - Add crypto_acomp_batch

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Message-ID: <PH7PR11MB8121D84D1364ABE4A7944399C9F6A@PH7PR11MB8121.namprd11.prod.outlook.com>
Date: Fri, 17 Oct 2025 04:02:33 +0000
From: "Sridhar, Kanchana P" <kanchana.p.sridhar@...el.com>
To: Herbert Xu <herbert@...dor.apana.org.au>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
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	"Feghali, Wajdi K" <wajdi.k.feghali@...el.com>, "Gopal, Vinodh"
	<vinodh.gopal@...el.com>, "Sridhar, Kanchana P"
	<kanchana.p.sridhar@...el.com>
Subject: RE: [PATCH v12 19/23] crypto: acomp - Add crypto_acomp_batch_size()
 to get an algorithm's batch-size.


> -----Original Message-----
> From: Herbert Xu <herbert@...dor.apana.org.au>
> Sent: Thursday, October 16, 2025 6:04 PM
> To: Sridhar, Kanchana P <kanchana.p.sridhar@...el.com>
> Cc: linux-kernel@...r.kernel.org; linux-mm@...ck.org;
> hannes@...xchg.org; yosry.ahmed@...ux.dev; nphamcs@...il.com;
> chengming.zhou@...ux.dev; usamaarif642@...il.com;
> ryan.roberts@....com; 21cnbao@...il.com;
> ying.huang@...ux.alibaba.com; akpm@...ux-foundation.org;
> senozhatsky@...omium.org; sj@...nel.org; kasong@...cent.com; linux-
> crypto@...r.kernel.org; davem@...emloft.net; clabbe@...libre.com;
> ardb@...nel.org; ebiggers@...gle.com; surenb@...gle.com; Accardi,
> Kristen C <kristen.c.accardi@...el.com>; Gomes, Vinicius
> <vinicius.gomes@...el.com>; Feghali, Wajdi K <wajdi.k.feghali@...el.com>;
> Gopal, Vinodh <vinodh.gopal@...el.com>
> Subject: Re: [PATCH v12 19/23] crypto: acomp - Add
> crypto_acomp_batch_size() to get an algorithm's batch-size.
> 
> On Thu, Sep 25, 2025 at 08:34:58PM -0700, Kanchana P Sridhar wrote:
> >
> > diff --git a/include/crypto/acompress.h b/include/crypto/acompress.h
> > index 0f1334168f1b..e94046529e46 100644
> > --- a/include/crypto/acompress.h
> > +++ b/include/crypto/acompress.h
> > @@ -108,6 +108,8 @@ struct acomp_req {
> >   *
> >   * @compress:		Function performs a compress operation
> >   * @decompress:		Function performs a de-compress operation
> > + * @batch_size:		Maximum batch-size for batching
> compress/decompress
> > + *			operations.
> >   * @reqsize:		Context size for (de)compression requests
> >   * @fb:			Synchronous fallback tfm
> >   * @base:		Common crypto API algorithm data structure
> > @@ -115,6 +117,7 @@ struct acomp_req {
> >  struct crypto_acomp {
> >  	int (*compress)(struct acomp_req *req);
> >  	int (*decompress)(struct acomp_req *req);
> > +	unsigned int batch_size;
> 
> There is no need to store the batch_size in the tfm.  Just return
> the value from acomp_alg directly.

I see. Ok, will do so.

Thanks,
Kanchana

> 
> Thanks,
> --
> Email: Herbert Xu <herbert@...dor.apana.org.au>
> Home Page: http://gondor.apana.org.au/~herbert/
> PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt