tree:   https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android-4.14-q-release
head:   556853b32b4656f1072ed285ee06b9519bb5ed8b
commit: 6576d939b169c917039282cdeead56139ddd030e [3069/9999] UPSTREAM: crypto: zstd - Add zstd support
config: parisc-randconfig-r031-20221124
compiler: hppa-linux-gcc (GCC) 7.5.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/ammarfaizi2/linux-block/commit/6576d939b169c917039282cdeead56139ddd030e
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android-4.14-q-release
        git checkout 6576d939b169c917039282cdeead56139ddd030e
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-7.5.0 make.cross W=1 O=build_dir ARCH=parisc SHELL=/bin/bash lib/zstd/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   lib/zstd/compress.c:434:8: warning: no previous declaration for 'ZSTD_noCompressBlock' [-Wmissing-declarations]
    size_t ZSTD_noCompressBlock(void *dst, size_t dstCapacity, const void *src, size_t srcSize)
           ^~~~~~~~~~~~~~~~~~~~
   lib/zstd/compress.c:2252:6: warning: no previous declaration for 'ZSTD_compressBlock_greedy_extDict' [-Wmissing-declarations]
    void ZSTD_compressBlock_greedy_extDict(ZSTD_CCtx *ctx, const void *src, size_t srcSize) { ZSTD_compressBlock_lazy_extDict_generic(ctx, src, srcSize, 0, 0); }
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   lib/zstd/compress.c:2982:15: warning: no previous declaration for 'ZSTD_createCStream_advanced' [-Wmissing-declarations]
    ZSTD_CStream *ZSTD_createCStream_advanced(ZSTD_customMem customMem)
                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   lib/zstd/compress.c: In function 'ZSTD_compressStream_generic':
   lib/zstd/compress.c:3183:16: warning: this statement may fall through [-Wimplicit-fallthrough=]
        zcs->stage = zcss_flush; /* pass-through to flush stage */
        ~~~~~~~~~~~^~~~~~~~~~~~
   lib/zstd/compress.c:3186:3: note: here
      case zcss_flush: {
      ^~~~
   In file included from lib/zstd/compress.c:23:0:
   At top level:
   lib/zstd/zstd_internal.h:83:21: warning: 'ZSTD_did_fieldSize' defined but not used [-Wunused-const-variable=]
    static const size_t ZSTD_did_fieldSize[4] = {0, 1, 2, 4};
                        ^~~~~~~~~~~~~~~~~~
   lib/zstd/zstd_internal.h:82:21: warning: 'ZSTD_fcs_fieldSize' defined but not used [-Wunused-const-variable=]
    static const size_t ZSTD_fcs_fieldSize[4] = {0, 2, 4, 8};
                        ^~~~~~~~~~~~~~~~~~
   In file included from lib/zstd/error_private.h:26:0,
                    from lib/zstd/bitstream.h:53,
                    from lib/zstd/fse.h:228,
                    from lib/zstd/compress.c:20:
   include/linux/zstd.h:798:21: warning: 'ZSTD_skippableHeaderSize' defined but not used [-Wunused-const-variable=]
    static const size_t ZSTD_skippableHeaderSize = 8;
                        ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/zstd.h:795:21: warning: 'ZSTD_frameHeaderSize_min' defined but not used [-Wunused-const-variable=]
    static const size_t ZSTD_frameHeaderSize_min = ZSTD_FRAMEHEADERSIZE_MIN;
                        ^~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/zstd.h:794:21: warning: 'ZSTD_frameHeaderSize_prefix' defined but not used [-Wunused-const-variable=]
    static const size_t ZSTD_frameHeaderSize_prefix = 5;
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   lib/zstd/compress.c: In function 'ZSTD_compressBlock_doubleFast':
>> lib/zstd/compress.c:1393:1: warning: the frame size of 1428 bytes is larger than 1280 bytes [-Wframe-larger-than=]
    }
    ^


vim +1393 lib/zstd/compress.c

73f3d1b48f5069 Nick Terrell 2017-08-09  1382  
73f3d1b48f5069 Nick Terrell 2017-08-09  1383  static void ZSTD_compressBlock_doubleFast(ZSTD_CCtx *ctx, const void *src, size_t srcSize)
73f3d1b48f5069 Nick Terrell 2017-08-09  1384  {
73f3d1b48f5069 Nick Terrell 2017-08-09  1385  	const U32 mls = ctx->params.cParams.searchLength;
73f3d1b48f5069 Nick Terrell 2017-08-09  1386  	switch (mls) {
73f3d1b48f5069 Nick Terrell 2017-08-09  1387  	default: /* includes case 3 */
73f3d1b48f5069 Nick Terrell 2017-08-09  1388  	case 4: ZSTD_compressBlock_doubleFast_generic(ctx, src, srcSize, 4); return;
73f3d1b48f5069 Nick Terrell 2017-08-09  1389  	case 5: ZSTD_compressBlock_doubleFast_generic(ctx, src, srcSize, 5); return;
73f3d1b48f5069 Nick Terrell 2017-08-09  1390  	case 6: ZSTD_compressBlock_doubleFast_generic(ctx, src, srcSize, 6); return;
73f3d1b48f5069 Nick Terrell 2017-08-09  1391  	case 7: ZSTD_compressBlock_doubleFast_generic(ctx, src, srcSize, 7); return;
73f3d1b48f5069 Nick Terrell 2017-08-09  1392  	}
73f3d1b48f5069 Nick Terrell 2017-08-09 @1393  }
73f3d1b48f5069 Nick Terrell 2017-08-09  1394  

:::::: The code at line 1393 was first introduced by commit
:::::: 73f3d1b48f5069d46ba48aa28c2898dc93185560 lib: Add zstd modules

:::::: TO: Nick Terrell <terrelln@fb.com>
:::::: CC: Chris Mason <clm@fb.com>

-- 
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https://01.org/lkp