linux-kernel - arch/sparc/include/asm/cacheflush_32.h:38:37: warning: 'struct page' declared inside parameter list will not be visible outside of this definition or declaration

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Message-ID: <202204081146.wZyxhSbb-lkp@intel.com>
Date:   Fri, 8 Apr 2022 11:12:53 +0800
From:   kernel test robot <lkp@...el.com>
To:     Herbert Xu <herbert@...dor.apana.org.au>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: arch/sparc/include/asm/cacheflush_32.h:38:37: warning: 'struct page'
 declared inside parameter list will not be visible outside of this
 definition or declaration

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   42e7a03d3badebd4e70aea5362d6914dfc7c220b
commit: 0e03b8fd29363f2df44e2a7a176d486de550757a crypto: xilinx - Turn SHA into a tristate and allow COMPILE_TEST
date:   4 weeks ago
config: sparc-randconfig-r013-20220408 (https://download.01.org/0day-ci/archive/20220408/202204081146.wZyxhSbb-lkp@intel.com/config)
compiler: sparc-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=0e03b8fd29363f2df44e2a7a176d486de550757a
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 0e03b8fd29363f2df44e2a7a176d486de550757a
        # 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=sparc SHELL=/bin/bash drivers/crypto/xilinx/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

   In file included from arch/sparc/include/asm/cacheflush.h:11,
                    from include/linux/cacheflush.h:5,
                    from drivers/crypto/xilinx/zynqmp-sha.c:6:
>> arch/sparc/include/asm/cacheflush_32.h:38:37: warning: 'struct page' declared inside parameter list will not be visible outside of this definition or declaration
      38 | void sparc_flush_page_to_ram(struct page *page);
         |                                     ^~~~
   In file included from drivers/crypto/xilinx/zynqmp-sha.c:6:
   include/linux/cacheflush.h:9:32: warning: 'struct folio' declared inside parameter list will not be visible outside of this definition or declaration
       9 | void flush_dcache_folio(struct folio *folio);
         |                                ^~~~~


vim +38 arch/sparc/include/asm/cacheflush_32.h

f5e706ad886b6a include/asm-sparc/cacheflush_32.h      Sam Ravnborg    2008-07-17  19  
f5e706ad886b6a include/asm-sparc/cacheflush_32.h      Sam Ravnborg    2008-07-17  20  #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
f5e706ad886b6a include/asm-sparc/cacheflush_32.h      Sam Ravnborg    2008-07-17  21  	do {							\
f5e706ad886b6a include/asm-sparc/cacheflush_32.h      Sam Ravnborg    2008-07-17  22  		flush_cache_page(vma, vaddr, page_to_pfn(page));\
f5e706ad886b6a include/asm-sparc/cacheflush_32.h      Sam Ravnborg    2008-07-17  23  		memcpy(dst, src, len);				\
f5e706ad886b6a include/asm-sparc/cacheflush_32.h      Sam Ravnborg    2008-07-17  24  	} while (0)
f5e706ad886b6a include/asm-sparc/cacheflush_32.h      Sam Ravnborg    2008-07-17  25  #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
f5e706ad886b6a include/asm-sparc/cacheflush_32.h      Sam Ravnborg    2008-07-17  26  	do {							\
f5e706ad886b6a include/asm-sparc/cacheflush_32.h      Sam Ravnborg    2008-07-17  27  		flush_cache_page(vma, vaddr, page_to_pfn(page));\
f5e706ad886b6a include/asm-sparc/cacheflush_32.h      Sam Ravnborg    2008-07-17  28  		memcpy(dst, src, len);				\
f5e706ad886b6a include/asm-sparc/cacheflush_32.h      Sam Ravnborg    2008-07-17  29  	} while (0)
f5e706ad886b6a include/asm-sparc/cacheflush_32.h      Sam Ravnborg    2008-07-17  30  
5d83d66635bb16 arch/sparc/include/asm/cacheflush_32.h David S. Miller 2012-05-13  31  #define __flush_page_to_ram(addr) \
5d83d66635bb16 arch/sparc/include/asm/cacheflush_32.h David S. Miller 2012-05-13  32  	sparc32_cachetlb_ops->page_to_ram(addr)
5d83d66635bb16 arch/sparc/include/asm/cacheflush_32.h David S. Miller 2012-05-13  33  #define flush_sig_insns(mm,insn_addr) \
5d83d66635bb16 arch/sparc/include/asm/cacheflush_32.h David S. Miller 2012-05-13  34  	sparc32_cachetlb_ops->sig_insns(mm, insn_addr)
5d83d66635bb16 arch/sparc/include/asm/cacheflush_32.h David S. Miller 2012-05-13  35  #define flush_page_for_dma(addr) \
5d83d66635bb16 arch/sparc/include/asm/cacheflush_32.h David S. Miller 2012-05-13  36  	sparc32_cachetlb_ops->page_for_dma(addr)
f5e706ad886b6a include/asm-sparc/cacheflush_32.h      Sam Ravnborg    2008-07-17  37  
f05a68653e56ca arch/sparc/include/asm/cacheflush_32.h Sam Ravnborg    2014-05-16 @38  void sparc_flush_page_to_ram(struct page *page);
f5e706ad886b6a include/asm-sparc/cacheflush_32.h      Sam Ravnborg    2008-07-17  39  

:::::: The code at line 38 was first introduced by commit
:::::: f05a68653e56ca2f23bccf7e50be69486886f052 sparc: drop use of extern for prototypes in arch/sparc/include/asm

:::::: TO: Sam Ravnborg <sam@...nborg.org>
:::::: CC: David S. Miller <davem@...emloft.net>

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