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From: Sven Schmidt <4sschmid@informatik.uni-hamburg.de>
To: Jonathan Corbet <corbet@lwn.net>
Cc: akpm@linux-foundation.org, bongkyu.kim@lge.com,
	rsalvaterra@gmail.com, sergey.senozhatsky@gmail.com,
	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
	herbert@gondor.apana.org.au, davem@davemloft.net,
	linux-crypto@vger.kernel.org, anton@enomsg.org,
	ccross@android.com, keescook@chromium.org, tony.luck@intel.com,
	4sschmid@informatik.uni-hamburg.de
Subject: Re: [PATCH v6 1/5] lib: Update LZ4 compressor module
Date: Wed, 1 Feb 2017 21:18:59 +0100	[thread overview]
Message-ID: <20170201201859.GA15641@bierbaron.springfield.local> (raw)
In-Reply-To: <20170131152744.5bd2f3ba@lwn.net>

On Tue, Jan 31, 2017 at 03:27:44PM -0700, Jonathan Corbet wrote:
> On Fri, 27 Jan 2017 23:02:00 +0100
> Sven Schmidt <4sschmid@informatik.uni-hamburg.de> wrote:
> 
> I have one quick question...
> 
> >  /*
> > + * LZ4_compress_default()
> > + *	Compresses 'sourceSize' bytes from buffer 'source'
> > + *	into already allocated 'dest' buffer of size 'maxOutputSize'.
> > + *	Compression is guaranteed to succeed if
> > + *	'maxOutputSize' >= LZ4_compressBound(inputSize).
> > + *	It also runs faster, so it's a recommended setting.
> > + *	If the function cannot compress 'source'
> > + *	into a more limited 'dest' budget,
> > + *	compression stops *immediately*,
> > + *	and the function result is zero.
> > + *	As a consequence, 'dest' content is not valid.
> > + *
> > + *	source       : source address of the original data
> > + *	dest         : output buffer address
> > + *                 of the compressed data
> > + *	inputSize    : Max supported value is
> > + *                 LZ4_MAX_INPUT_SIZE
> > + *	maxOutputSize: full or partial size of buffer 'dest'
> > + *                 (which must be already allocated)
> > + *	workmem      : address of the working memory.
> > + *                 This requires 'workmem' of size LZ4_MEM_COMPRESS.
> > + *	return       : the number of bytes written into buffer 'dest'
> > + *   (necessarily <= maxOutputSize) or 0 if compression fails
> > + */
> > +int LZ4_compress_default(const char *source, char *dest, int inputSize,
> > +	int maxOutputSize, void *wrkmem);
> 
> Is there any chance you could format these as kerneldoc comments?  You're
> not too far from it now, and that would allow the LZ4 interface to be
> pulled into the documentation.
> 
> Thanks,
> 
> jon

Hi Jon,

of course, that makes sense. I already checked the documentation and you're right, I'm not that far from it.
Will do the necessary changes.

Thanks,

Sven

  reply	other threads:[~2017-02-01 20:19 UTC|newest]

Thread overview: 84+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1482259992-16680-1-git-send-email-4sschmid@informatik.uni-hamburg.de>
     [not found] ` <1482259992-16680-2-git-send-email-4sschmid@informatik.uni-hamburg.de>
2016-12-22 13:25   ` [PATCH 1/3] crypto: Change lz4 modules to work with new lz4 compressor module version Sergey Senozhatsky
2017-01-07 16:55 ` [PATCH v2 0/4] Update LZ4 compressor module Sven Schmidt
2017-01-07 16:55   ` [PATCH v2 1/4] lib: Update LZ4 compressor module based on LZ4 v1.7.2 Sven Schmidt
2017-01-08 11:22     ` Greg KH
2017-01-10  9:32       ` Sven Schmidt
2017-01-10  9:59         ` Greg KH
2017-01-08 11:25     ` Greg KH
2017-01-08 11:33       ` Rui Salvaterra
2017-01-10  9:21       ` Sven Schmidt
2017-01-10 10:00         ` Greg KH
2017-01-10 10:50           ` Willy Tarreau
2017-01-07 16:55   ` [PATCH v2 2/4] lib/decompress_unlz4: Change module to work with new LZ4 module version Sven Schmidt
2017-01-08 11:23     ` Greg KH
2017-01-07 16:55   ` [PATCH v2 3/4] crypto: Change LZ4 modules " Sven Schmidt
2017-01-07 16:55   ` [PATCH v2 4/4] fs/pstore: fs/squashfs: Change usage of LZ4 to comply " Sven Schmidt
2017-01-07 21:33     ` Kees Cook
2017-01-10  9:45       ` Sven Schmidt
2017-01-21 15:09 ` [PATCH v3 0/4] Update LZ4 compressor module Sven Schmidt
2017-01-21 15:09   ` [PATCH 1/4] lib: " Sven Schmidt
2017-01-21 15:56     ` kbuild test robot
2017-01-21 16:16     ` kbuild test robot
2017-01-21 17:38     ` kbuild test robot
2017-01-22 11:05     ` Greg KH
2017-01-21 15:09   ` [PATCH 2/4] lib/decompress_unlz4: Change module to work with new LZ4 module version Sven Schmidt
2017-01-21 15:09   ` [PATCH 3/4] crypto: Change LZ4 modules " Sven Schmidt
2017-01-21 15:09   ` [PATCH 4/4] fs/pstore: fs/squashfs: Change usage of LZ4 to work with new LZ4 version Sven Schmidt
2017-01-22 19:35 ` [PATCH v4 0/4] Update LZ4 compressor module Sven Schmidt
2017-01-22 19:35   ` [PATCH v4 1/4] lib: " Sven Schmidt
2017-01-24  0:23     ` Andrew Morton
2017-01-24 16:48       ` Sven Schmidt
2017-01-22 19:35   ` [PATCH v4 2/4] lib/decompress_unlz4: Change module to work with new LZ4 module version Sven Schmidt
2017-01-22 19:35   ` [PATCH v4 3/4] crypto: Change LZ4 modules " Sven Schmidt
2017-01-22 19:35   ` [PATCH v4 4/4] fs/pstore: fs/squashfs: Change usage of LZ4 to work with new LZ4 version Sven Schmidt
2017-01-26  7:57 ` [PATCH v5 0/5] Update LZ4 compressor module Sven Schmidt
2017-01-26  7:57   ` [PATCH v5 1/5] lib: " Sven Schmidt
2017-01-26  7:57   ` [PATCH v5 2/5] lib/decompress_unlz4: Change module to work with new LZ4 module version Sven Schmidt
2017-01-26  7:57   ` [PATCH v5 3/5] crypto: Change LZ4 modules " Sven Schmidt
2017-01-26  7:57   ` [PATCH v5 4/5] fs/pstore: fs/squashfs: Change usage of LZ4 to work with new LZ4 version Sven Schmidt
2017-01-26  7:57   ` [PATCH v5 5/5] lib/lz4: Remove back-compat wrappers Sven Schmidt
2017-01-26  9:19   ` [PATCH v5 0/5] Update LZ4 compressor module Eric Biggers
2017-01-26 14:15     ` Sven Schmidt
2017-01-27 22:01 ` [PATCH v6 " Sven Schmidt
2017-01-27 22:02   ` [PATCH v6 1/5] lib: " Sven Schmidt
2017-01-31 22:27     ` Jonathan Corbet
2017-02-01 20:18       ` Sven Schmidt [this message]
2017-01-27 22:02   ` [PATCH v6 2/5] lib/decompress_unlz4: Change module to work with new LZ4 module version Sven Schmidt
2017-01-27 22:02   ` [PATCH v6 3/5] crypto: Change LZ4 modules " Sven Schmidt
2017-01-27 22:02   ` [PATCH v6 4/5] fs/pstore: fs/squashfs: Change usage of LZ4 to work with new LZ4 version Sven Schmidt
2017-01-27 22:02   ` [PATCH v6 5/5] lib/lz4: Remove back-compat wrappers Sven Schmidt
2017-02-05 19:09 ` [PATCH v7 0/5] Update LZ4 compressor module Sven Schmidt
2017-02-05 19:09   ` [PATCH v7 1/5] lib: " Sven Schmidt
2017-02-05 19:09   ` [PATCH v7 2/5] lib/decompress_unlz4: Change module to work with new LZ4 module version Sven Schmidt
2017-02-05 19:09   ` [PATCH v7 3/5] crypto: Change LZ4 modules " Sven Schmidt
2017-02-05 19:09   ` [PATCH v7 4/5] fs/pstore: fs/squashfs: Change usage of LZ4 to work with new LZ4 version Sven Schmidt
2017-02-05 19:09   ` [PATCH v7 5/5] lib/lz4: Remove back-compat wrappers Sven Schmidt
2017-02-08 23:31   ` [PATCH v7 0/5] Update LZ4 compressor module Minchan Kim
2017-02-09  0:24     ` Eric Biggers
2017-02-09  5:24       ` Eric Biggers
2017-02-09 11:05         ` Sven Schmidt
2017-02-09 18:20           ` Eric Biggers
2017-02-10  0:14         ` Minchan Kim
2017-02-09 11:02       ` Sven Schmidt
2017-02-09 18:29         ` Eric Biggers
2017-02-10  3:57           ` David Miller
2017-02-09 10:56     ` Sven Schmidt
2017-02-10  0:13       ` Minchan Kim
2017-02-12 11:16         ` Sven Schmidt
2017-02-12 11:16           ` [PATCH] lz4: fix performance regressions Sven Schmidt
2017-02-12 13:05             ` Willy Tarreau
2017-02-12 15:20               ` Sven Schmidt
2017-02-12 21:41                 ` Willy Tarreau
2017-02-13 11:53                   ` Sven Schmidt
2017-02-13 13:37                     ` Willy Tarreau
2017-02-12 23:38             ` Eric Biggers
2017-02-14 10:33               ` Sven Schmidt
2017-02-13  0:03           ` [PATCH v7 0/5] Update LZ4 compressor module Minchan Kim
2017-02-13 12:08             ` Sven Schmidt
2017-02-15  7:29               ` Minchan Kim
2017-02-15 18:16 ` [PATCH v8 " Sven Schmidt
2017-02-15 18:16   ` [PATCH v8 1/5] lib: " Sven Schmidt
2017-02-15 18:16   ` [PATCH v8 2/5] lib/decompress_unlz4: Change module to work with new LZ4 module version Sven Schmidt
2017-02-15 18:16   ` [PATCH v8 3/5] crypto: Change LZ4 modules " Sven Schmidt
2017-02-15 18:16   ` [PATCH v8 4/5] fs/pstore: fs/squashfs: Change usage of LZ4 to work with new LZ4 version Sven Schmidt
2017-02-15 18:16   ` [PATCH v8 5/5] lib/lz4: Remove back-compat wrappers Sven Schmidt

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