Re: [PATCH v2] staging: erofs: add SPDX identifer
Hi Loic, On 2018/10/8 23:00, loïc tourlonias wrote: > Hi Gao, > On Mon, Oct 8, 2018 at 4:48 PM Gao Xiang wrote: >> >> Hi Greg, >> >> On 2018/10/8 22:43, Greg Kroah-Hartman wrote: >>> On Mon, Oct 08, 2018 at 10:36:39PM +0800, Gao Xiang wrote: Hi Greg, On 2018/10/8 22:22, Greg Kroah-Hartman wrote: > Why delete that line? > > But wait, why do we even have this file at all? What's wrong with the > lib/lz4/ code that we have in the kernel today? Shouldn't the code > using these files be moved over to use the lib/ code instead and this > file be deleted? EROFS uses customized LZ4 decompression code for now (which has been offically supported in lz4 1.8.3, I have updated it in https://ozlabs.org/~akpm/mmots/broken-out/lib-lz4-update-lz4-decompressor-module.patch if it is shown up in Linux 4.20, I will remove all the customized LZ4 decompression code), but lib/ code lz4def.h isn't export to include/. >>> >>> It should show up in 4.20, so you should be able to remove this all >>> then. >> >> Yes, that is correct. I will fix it in 4.20 if the updated LZ4 is already >> there. :) > > So no need to update the patch since the file will be removed. Am I correct? > > Too bad, I'll make my first patch later... ^^ I think you could make the patch if you want :) It is up to Greg whether take this patch or not since it is actually a cleanup attempt. I will also do more cleanups beside my current work, yet EROFS is now busy in productization. Thanks, Gao Xiang > > Thanks > Loic >> >> Thanks, >> Gao Xiang >> >>> >>> thanks, >>> >>> greg k-h >>> ___ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
Re: [PATCH v2] staging: erofs: add SPDX identifer
Hi Gao, On Mon, Oct 8, 2018 at 4:48 PM Gao Xiang wrote: > > Hi Greg, > > On 2018/10/8 22:43, Greg Kroah-Hartman wrote: > > On Mon, Oct 08, 2018 at 10:36:39PM +0800, Gao Xiang wrote: > >> Hi Greg, > >> > >> On 2018/10/8 22:22, Greg Kroah-Hartman wrote: > >>> Why delete that line? > >>> > >>> But wait, why do we even have this file at all? What's wrong with the > >>> lib/lz4/ code that we have in the kernel today? Shouldn't the code > >>> using these files be moved over to use the lib/ code instead and this > >>> file be deleted? > >> > >> EROFS uses customized LZ4 decompression code for now (which has been > >> offically > >> supported in lz4 1.8.3, I have updated it in > >> https://ozlabs.org/~akpm/mmots/broken-out/lib-lz4-update-lz4-decompressor-module.patch > >> if it is shown up in Linux 4.20, I will remove all the customized LZ4 > >> decompression code), > >> but lib/ code lz4def.h isn't export to include/. > > > > It should show up in 4.20, so you should be able to remove this all > > then. > > Yes, that is correct. I will fix it in 4.20 if the updated LZ4 is already > there. :) So no need to update the patch since the file will be removed. Am I correct? Too bad, I'll make my first patch later... ^^ Thanks Loic > > Thanks, > Gao Xiang > > > > > thanks, > > > > greg k-h > > ___ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
Re: [PATCH v2] staging: erofs: add SPDX identifer
Hi Greg, On 2018/10/8 22:43, Greg Kroah-Hartman wrote: > On Mon, Oct 08, 2018 at 10:36:39PM +0800, Gao Xiang wrote: >> Hi Greg, >> >> On 2018/10/8 22:22, Greg Kroah-Hartman wrote: >>> Why delete that line? >>> >>> But wait, why do we even have this file at all? What's wrong with the >>> lib/lz4/ code that we have in the kernel today? Shouldn't the code >>> using these files be moved over to use the lib/ code instead and this >>> file be deleted? >> >> EROFS uses customized LZ4 decompression code for now (which has been >> offically >> supported in lz4 1.8.3, I have updated it in >> https://ozlabs.org/~akpm/mmots/broken-out/lib-lz4-update-lz4-decompressor-module.patch >> if it is shown up in Linux 4.20, I will remove all the customized LZ4 >> decompression code), >> but lib/ code lz4def.h isn't export to include/. > > It should show up in 4.20, so you should be able to remove this all > then. Yes, that is correct. I will fix it in 4.20 if the updated LZ4 is already there. :) Thanks, Gao Xiang > > thanks, > > greg k-h > ___ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
Re: [PATCH v2] staging: erofs: add SPDX identifer
On Mon, Oct 08, 2018 at 10:36:39PM +0800, Gao Xiang wrote: > Hi Greg, > > On 2018/10/8 22:22, Greg Kroah-Hartman wrote: > > Why delete that line? > > > > But wait, why do we even have this file at all? What's wrong with the > > lib/lz4/ code that we have in the kernel today? Shouldn't the code > > using these files be moved over to use the lib/ code instead and this > > file be deleted? > > EROFS uses customized LZ4 decompression code for now (which has been offically > supported in lz4 1.8.3, I have updated it in > https://ozlabs.org/~akpm/mmots/broken-out/lib-lz4-update-lz4-decompressor-module.patch > if it is shown up in Linux 4.20, I will remove all the customized LZ4 > decompression code), > but lib/ code lz4def.h isn't export to include/. It should show up in 4.20, so you should be able to remove this all then. thanks, greg k-h ___ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
Re: [PATCH v2] staging: erofs: add SPDX identifer
On 2018/10/8 22:36, Gao Xiang wrote: > Hi Greg, > > On 2018/10/8 22:22, Greg Kroah-Hartman wrote: >> Why delete that line? >> >> But wait, why do we even have this file at all? What's wrong with the >> lib/lz4/ code that we have in the kernel today? Shouldn't the code >> using these files be moved over to use the lib/ code instead and this >> file be deleted? > > EROFS uses customized LZ4 decompression code for now (which has been offically > supported in lz4 1.8.3, I have updated it in > https://ozlabs.org/~akpm/mmots/broken-out/lib-lz4-update-lz4-decompressor-module.patch > if it is shown up in Linux 4.20, I will remove all the customized LZ4 > decompression code), > but lib/ code lz4def.h isn't export to include/. Please refer to https://github.com/lz4/lz4/issues/566 for more details the reason why EROFS uses the different implementation rather than the current lib/lz4/ code in the kernel today (it will be changed in the next Linux version if the updated code works fine.) Thanks, Gao Xiang > > Thanks, > Gao Xiang > >> >> thanks, >> >> greg k-h ___ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
Re: [PATCH v2] staging: erofs: add SPDX identifer
Hi Greg, On 2018/10/8 22:22, Greg Kroah-Hartman wrote: > Why delete that line? > > But wait, why do we even have this file at all? What's wrong with the > lib/lz4/ code that we have in the kernel today? Shouldn't the code > using these files be moved over to use the lib/ code instead and this > file be deleted? EROFS uses customized LZ4 decompression code for now (which has been offically supported in lz4 1.8.3, I have updated it in https://ozlabs.org/~akpm/mmots/broken-out/lib-lz4-update-lz4-decompressor-module.patch if it is shown up in Linux 4.20, I will remove all the customized LZ4 decompression code), but lib/ code lz4def.h isn't export to include/. Thanks, Gao Xiang > > thanks, > > greg k-h ___ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
Re: [PATCH v2] staging: erofs: add SPDX identifer
On Mon, Oct 08, 2018 at 04:14:09PM +0200, Loic Tourlonias wrote: > Add SPDX identifier to simplify header and remove whole license text > > v1 -> v2: > > Move SPDX identifier to first line and change comment delimiter The "changes" need to go below the --- line. > > Signed-off-by: Loic Tourlonias > --- > drivers/staging/erofs/lz4defs.h | 24 ++-- > 1 file changed, 2 insertions(+), 22 deletions(-) > > diff --git a/drivers/staging/erofs/lz4defs.h b/drivers/staging/erofs/lz4defs.h > index 00a0b58a0871..cdacc57e6a08 100644 > --- a/drivers/staging/erofs/lz4defs.h > +++ b/drivers/staging/erofs/lz4defs.h > @@ -1,32 +1,12 @@ > +/* SPDX-License-Identifier: BSD-2-Clause*/ > #ifndef __LZ4DEFS_H__ > #define __LZ4DEFS_H__ > - > /* Why delete that line? But wait, why do we even have this file at all? What's wrong with the lib/lz4/ code that we have in the kernel today? Shouldn't the code using these files be moved over to use the lib/ code instead and this file be deleted? thanks, greg k-h ___ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
[PATCH v2] staging: erofs: add SPDX identifer
Add SPDX identifier to simplify header and remove whole license text v1 -> v2: Move SPDX identifier to first line and change comment delimiter Signed-off-by: Loic Tourlonias --- drivers/staging/erofs/lz4defs.h | 24 ++-- 1 file changed, 2 insertions(+), 22 deletions(-) diff --git a/drivers/staging/erofs/lz4defs.h b/drivers/staging/erofs/lz4defs.h index 00a0b58a0871..cdacc57e6a08 100644 --- a/drivers/staging/erofs/lz4defs.h +++ b/drivers/staging/erofs/lz4defs.h @@ -1,32 +1,12 @@ +/* SPDX-License-Identifier: BSD-2-Clause*/ #ifndef __LZ4DEFS_H__ #define __LZ4DEFS_H__ - /* * lz4defs.h -- common and architecture specific defines for the kernel usage * LZ4 - Fast LZ compression algorithm * Copyright (C) 2011-2016, Yann Collet. - * BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php) - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * * You can contact the author at : * - LZ4 homepage : http://www.lz4.org * - LZ4 source repository : https://github.com/lz4/lz4 -- 2.17.1 ___ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
