[contrib][linux] Fix a warning in zstd_reset_cstream() #3088

cyberknight777 · 2022-03-07T03:57:18Z

This fixes the below warning:

../lib/zstd/zstd_compress_module.c: In function 'zstd_reset_cstream':
../lib/zstd/zstd_compress_module.c:136:9: warning: 'ZSTD_resetCStream' is deprecated [-Wdeprecated-declarations]
136 | return ZSTD_resetCStream(cstream, pledged_src_size);
| ^~~~~~
In file included from ../include/linux/zstd.h:26,
from ../lib/zstd/zstd_compress_module.c:15:
../include/linux/zstd_lib.h:2277:8: note: declared here
2277 | size_t ZSTD_resetCStream(ZSTD_CStream* zcs, unsigned long long pledgedSrcSize);
| ^~~~~~~~~~~~~~~~~

ZSTD_resetCstream is deprecated and zstd_CCtx_reset is suggested to use hence let's switch to it.

Signed-off-by: Cyber Knight cyberknight755@gmail.com

- This fixes the below warning: ../lib/zstd/zstd_compress_module.c: In function 'zstd_reset_cstream': ../lib/zstd/zstd_compress_module.c:136:9: warning: 'ZSTD_resetCStream' is deprecated [-Wdeprecated-declarations] 136 | return ZSTD_resetCStream(cstream, pledged_src_size); | ^~~~~~ In file included from ../include/linux/zstd.h:26, from ../lib/zstd/zstd_compress_module.c:15: ../include/linux/zstd_lib.h:2277:8: note: declared here 2277 | size_t ZSTD_resetCStream(ZSTD_CStream* zcs, unsigned long long pledgedSrcSize); | ^~~~~~~~~~~~~~~~~ ZSTD_resetCstream is deprecated and zstd_CCtx_reset is suggested to use hence let's switch to it. Signed-off-by: Cyber Knight <cyberknight755@gmail.com>

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Cyan4973 · 2022-03-07T17:14:55Z

This is kernel code, so there might be specific reasons.
cc @terrelln .

cyberknight777 · 2022-03-07T17:19:39Z

Hmm I've never gotten this warn when compiling ZSTD 1.5.2 with the Linux kernel. Only warn I've got was the one which I fixed and made the PR with. I'll try another way to fix the warn completely without triggering any other warnings.

contrib/linux-kernel/zstd_compress_module.c

…tx_reset() - The previous patch throws the following warning: ../linux/lib/zstd/zstd_compress_module.c: In function ‘zstd_reset_cstream’: ../linux/lib/zstd/zstd_compress_module.c:136:34: error: enum conversion when passing argument 2 of ‘ZSTD_CCtx_reset’ is invalid in C++ [-Werror=c++-compat] 136 | return ZSTD_CCtx_reset(cstream, pledged_src_size); | ^~~~~~~~~~~~~~~~ In file included from ../linux/include/linux/zstd.h:26, from ../linux/lib/zstd/zstd_compress_module.c:15: ../linux/include/linux/zstd_lib.h:501:20: note: expected ‘ZSTD_ResetDirective’ {aka ‘enum <anonymous>’} but argument is of type ‘long long unsigned int’ 501 | ZSTDLIB_API size_t ZSTD_CCtx_reset(ZSTD_CCtx* cctx, ZSTD_ResetDirective reset); | ^~~~~~~~~~~~~~~ cc1: all warnings being treated as errors Since we have a choice to either use ZSTD_CCtx_reset or ZSTD_CCtx_setPledgedSrcSize instead of ZSTD_resetCStream, let's switch to ZSTD_CCtx_setPledgedSrcSize to not have any unnecessary warns alongside the kernel build and CI test build. Signed-off-by: Cyber Knight <cyberknight755@gmail.com>

…ZSTD_resetCStream() - As referenced by Nick Terrelln ~ the ZSTD maintainer in the linux kernel, making zstd_reset_cstream() functionally identical to ZSTD_resetCStream() would be the perfect way to fix the warning without touching any core functions or breaking other parts of the code. Suggested-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Cyber Knight <cyberknight755@gmail.com>

terrelln

Thanks @cyberknight777!

- As referenced by Nick Terrelln ~ the ZSTD maintainer in the linux kernel [1], making zstd_reset_cstream() functionally identical to ZSTD_resetCStream() would be the perfect way to fix the warning without touching any core functions or breaking other parts of the code. [1]: facebook/zstd#3088 (comment) Suggested-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Cyber Knight <cyberknight755@gmail.com>

Subsequent to commit 15f1b5e {"lib: zstd: Fix a warning in zstd_reset_cstream()"} - As referenced by Nick Terrelln ~ the ZSTD maintainer in the linux kernel [1], making zstd_reset_cstream() functionally identical to ZSTD_resetCStream() would be the perfect way to fix the warning without touching any core functions or breaking other parts of the code. [1]: facebook/zstd#3088 (comment) Suggested-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Cyber Knight <cyberknight755@gmail.com> Signed-off-by: Tashfin Shakeer Rhythm <tashfinshakeerrhythm@gmail.com>

- As referenced by Nick Terrelln ~ the ZSTD maintainer in the linux kernel [1], making zstd_reset_cstream() functionally identical to ZSTD_resetCStream() would be the perfect way to fix the warning without touching any core functions or breaking other parts of the code. [1]: facebook/zstd#3088 (comment) Suggested-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Cyber Knight <cyberknight755@gmail.com>

Subsequent to 15f1b5e137 {"lib: zstd: Fix a warning in zstd_reset_cstream()"} - As referenced by Nick Terrelln ~ the ZSTD maintainer in the linux kernel [1], making zstd_reset_cstream() functionally identical to ZSTD_resetCStream() would be the perfect way to fix the warning without touching any core functions or breaking other parts of the code. [1]: facebook/zstd#3088 (comment) Suggested-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Cyber Knight <cyberknight755@gmail.com>

Subsequent to 95ce392 {"lib: zstd: Fix a warning in zstd_reset_cstream()"} - As referenced by Nick Terrelln ~ the ZSTD maintainer in the linux kernel [1], making zstd_reset_cstream() functionally identical to ZSTD_resetCStream() would be the perfect way to fix the warning without touching any core functions or breaking other parts of the code. [1]: facebook/zstd#3088 (comment) Suggested-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Cyber Knight <cyberknight755@gmail.com>

Subsequent to commit 15f1b5e {"lib: zstd: Fix a warning in zstd_reset_cstream()"} - As referenced by Nick Terrelln ~ the ZSTD maintainer in the linux kernel [1], making zstd_reset_cstream() functionally identical to ZSTD_resetCStream() would be the perfect way to fix the warning without touching any core functions or breaking other parts of the code. [1]: facebook/zstd#3088 (comment) Suggested-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Cyber Knight <cyberknight755@gmail.com> Signed-off-by: Tashfin Shakeer Rhythm <tashfinshakeerrhythm@gmail.com>

Subsequent to 15f1b5e137 {"lib: zstd: Fix a warning in zstd_reset_cstream()"} - As referenced by Nick Terrelln ~ the ZSTD maintainer in the linux kernel [1], making zstd_reset_cstream() functionally identical to ZSTD_resetCStream() would be the perfect way to fix the warning without touching any core functions or breaking other parts of the code. [1]: facebook/zstd#3088 (comment) Suggested-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Cyber Knight <cyberknight755@gmail.com>

Subsequent to commit 15f1b5e {"lib: zstd: Fix a warning in zstd_reset_cstream()"} - As referenced by Nick Terrelln ~ the ZSTD maintainer in the linux kernel [1], making zstd_reset_cstream() functionally identical to ZSTD_resetCStream() would be the perfect way to fix the warning without touching any core functions or breaking other parts of the code. [1]: facebook/zstd#3088 (comment) Suggested-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Cyber Knight <cyberknight755@gmail.com> Signed-off-by: Tashfin Shakeer Rhythm <tashfinshakeerrhythm@gmail.com>

Subsequent to 15f1b5e137 {"lib: zstd: Fix a warning in zstd_reset_cstream()"} - As referenced by Nick Terrelln ~ the ZSTD maintainer in the linux kernel [1], making zstd_reset_cstream() functionally identical to ZSTD_resetCStream() would be the perfect way to fix the warning without touching any core functions or breaking other parts of the code. [1]: facebook/zstd#3088 (comment) Suggested-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Cyber Knight <cyberknight755@gmail.com>

Subsequent to commit 15f1b5e137 {"lib: zstd: Fix a warning in zstd_reset_cstream()"} - As referenced by Nick Terrelln ~ the ZSTD maintainer in the linux kernel [1], making zstd_reset_cstream() functionally identical to ZSTD_resetCStream() would be the perfect way to fix the warning without touching any core functions or breaking other parts of the code. [1]: facebook/zstd#3088 (comment) Suggested-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Cyber Knight <cyberknight755@gmail.com> Signed-off-by: Tashfin Shakeer Rhythm <tashfinshakeerrhythm@gmail.com> Signed-off-by: Divyanshu-Modi <divyan.m05@gmail.com> Change-Id: I6938dd8030dde2a797528338cff36a7d7eb072a0

Subsequent to commit 15f1b5e137 {"lib: zstd: Fix a warning in zstd_reset_cstream()"} - As referenced by Nick Terrelln ~ the ZSTD maintainer in the linux kernel [1], making zstd_reset_cstream() functionally identical to ZSTD_resetCStream() would be the perfect way to fix the warning without touching any core functions or breaking other parts of the code. [1]: facebook/zstd#3088 (comment) Suggested-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Cyber Knight <cyberknight755@gmail.com> Signed-off-by: Tashfin Shakeer Rhythm <tashfinshakeerrhythm@gmail.com> Signed-off-by: Divyanshu-Modi <divyan.m05@gmail.com> Change-Id: I6938dd8030dde2a797528338cff36a7d7eb072a0 Signed-off-by: Divyanshu-Modi <divyan.m05@gmail.com>

Subsequent to commit 15f1b5e {"lib: zstd: Fix a warning in zstd_reset_cstream()"} - As referenced by Nick Terrelln ~ the ZSTD maintainer in the linux kernel [1], making zstd_reset_cstream() functionally identical to ZSTD_resetCStream() would be the perfect way to fix the warning without touching any core functions or breaking other parts of the code. [1]: facebook/zstd#3088 (comment) Suggested-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Cyber Knight <cyberknight755@gmail.com> Signed-off-by: Tashfin Shakeer Rhythm <tashfinshakeerrhythm@gmail.com>

- ZSTD_resetDstream() is deprecated hence it is wise to make zstd_reset_dstream() functionally identical to ZSTD_resetDstream() as we have done for the compression stream in [1]. - Also make ZSTD_startingInputLength() visible for the decompression driver to be able to use it. - This fixes the below warning: ../lib/zstd/zstd_decompress_module.c: In function 'zstd_reset_dstream': ../lib/zstd/zstd_decompress_module.c:80:9: warning: 'ZSTD_resetDStream' is deprecated [-Wdeprecated-declarations] 80 | return ZSTD_resetDStream(dstream); | ^~~~~~ In file included from ../include/linux/zstd.h:26, from ../lib/zstd/zstd_decompress_module.c:15: ../include/linux/zstd_lib.h:2569:27: note: declared here 2569 | ZSTDLIB_STATIC_API size_t ZSTD_resetDStream(ZSTD_DStream* zds); | ^~~~~~~~~~~~~~~~~ [1]: facebook/zstd#3088 Signed-off-by: Cyber Knight <cyberknight755@gmail.com> Change-Id: If837c2f681814a26c644332eca3f77b4030824e4 Signed-off-by: TogoFire <togofire@mailfence.com>

Subsequent to 95ce392b774c1 {"lib: zstd: Fix a warning in zstd_reset_cstream()"} - As referenced by Nick Terrelln ~ the ZSTD maintainer in the linux kernel [1], making zstd_reset_cstream() functionally identical to ZSTD_resetCStream() would be the perfect way to fix the warning without touching any core functions or breaking other parts of the code. [1]: facebook/zstd#3088 (comment) Suggested-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Cyber Knight <cyberknight755@gmail.com> Signed-off-by: Wahid Khan <wahidzk0091@gmail.com>

- ZSTD_resetDstream() is deprecated hence it is wise to make zstd_reset_dstream() functionally identical to ZSTD_resetDstream() as we have done for the compression stream in [1]. - Also make ZSTD_startingInputLength() visible for the decompression driver to be able to use it. - This fixes the below warning: ../lib/zstd/zstd_decompress_module.c: In function 'zstd_reset_dstream': ../lib/zstd/zstd_decompress_module.c:80:9: warning: 'ZSTD_resetDStream' is deprecated [-Wdeprecated-declarations] 80 | return ZSTD_resetDStream(dstream); | ^~~~~~ In file included from ../include/linux/zstd.h:26, from ../lib/zstd/zstd_decompress_module.c:15: ../include/linux/zstd_lib.h:2569:27: note: declared here 2569 | ZSTDLIB_STATIC_API size_t ZSTD_resetDStream(ZSTD_DStream* zds); | ^~~~~~~~~~~~~~~~~ [1]: facebook/zstd#3088 Signed-off-by: Cyber Knight <cyberknight755@gmail.com> Signed-off-by: Wahid Khan <wahidzk0091@gmail.com>

Subsequent to 95ce392b774c1 {"lib: zstd: Fix a warning in zstd_reset_cstream()"} - As referenced by Nick Terrelln ~ the ZSTD maintainer in the linux kernel [1], making zstd_reset_cstream() functionally identical to ZSTD_resetCStream() would be the perfect way to fix the warning without touching any core functions or breaking other parts of the code. [1]: facebook/zstd#3088 (comment) Suggested-by: Nick Terrell <terrelln@fb.com> Signed-off-by: Cyber Knight <cyberknight755@gmail.com>

- ZSTD_resetDstream() is deprecated hence it is wise to make zstd_reset_dstream() functionally identical to ZSTD_resetDstream() as we have done for the compression stream in [1]. - Also make ZSTD_startingInputLength() visible for the decompression driver to be able to use it. - This fixes the below warning: ../lib/zstd/zstd_decompress_module.c: In function 'zstd_reset_dstream': ../lib/zstd/zstd_decompress_module.c:80:9: warning: 'ZSTD_resetDStream' is deprecated [-Wdeprecated-declarations] 80 | return ZSTD_resetDStream(dstream); | ^~~~~~ In file included from ../include/linux/zstd.h:26, from ../lib/zstd/zstd_decompress_module.c:15: ../include/linux/zstd_lib.h:2569:27: note: declared here 2569 | ZSTDLIB_STATIC_API size_t ZSTD_resetDStream(ZSTD_DStream* zds); | ^~~~~~~~~~~~~~~~~ [1]: facebook/zstd#3088 Signed-off-by: Cyber Knight <cyberknight755@gmail.com>