Re: lib/zstd/common/entropy_common.c:257:1: warning: the frame size of 1056 bytes is larger than 1024 bytes

[Philip Li <philip.li@intel.com>]

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On Sun, Feb 13, 2022 at 07:51:37PM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   b81b1829e7e39f6cebdf6e4d5484eacbceda8554
> commit: e0c1b49f5b674cca7b10549c53b3791d0bbc90a8 lib: zstd: Upgrade to latest upstream zstd version 1.4.10
> date:   3 months ago
> config: powerpc-randconfig-r035-20220213 (https://download.01.org/0day-ci/archive/20220213/202202131904.0y0h7bnY-lkp(a)intel.com/config)
> compiler: powerpc-linux-gcc (GCC) 11.2.0
> 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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e0c1b49f5b674cca7b10549c53b3791d0bbc90a8
>         git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>         git fetch --no-tags linus master
>         git checkout e0c1b49f5b674cca7b10549c53b3791d0bbc90a8
>         # save the config file to linux build tree
>         mkdir build_dir
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/mtd/devices/ lib/zstd/
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
> 
> All warnings (new ones prefixed by >>):
> 
>    lib/zstd/common/entropy_common.c: In function 'HUF_readStats':
> >> lib/zstd/common/entropy_common.c:257:1: warning: the frame size of 1056 bytes is larger than 1024 bytes [-Wframe-larger-than=]

Sorry for the false positive, kindly ignore this report.

>      257 | }
>          | ^
> 
> 
> vim +257 lib/zstd/common/entropy_common.c
> 
>    242	
>    243	
>    244	/*! HUF_readStats() :
>    245	    Read compact Huffman tree, saved by HUF_writeCTable().
>    246	    `huffWeight` is destination buffer.
>    247	    `rankStats` is assumed to be a table of at least HUF_TABLELOG_MAX U32.
>    248	    @return : size read from `src` , or an error Code .
>    249	    Note : Needed by HUF_readCTable() and HUF_readDTableX?() .
>    250	*/
>    251	size_t HUF_readStats(BYTE* huffWeight, size_t hwSize, U32* rankStats,
>    252	                     U32* nbSymbolsPtr, U32* tableLogPtr,
>    253	                     const void* src, size_t srcSize)
>    254	{
>    255	    U32 wksp[HUF_READ_STATS_WORKSPACE_SIZE_U32];
>    256	    return HUF_readStats_wksp(huffWeight, hwSize, rankStats, nbSymbolsPtr, tableLogPtr, src, srcSize, wksp, sizeof(wksp), /* bmi2 */ 0);
>  > 257	}
>    258	
> 
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org