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* [linux-next:master 10476/14131] net/sunrpc/svcsock.c:226:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
@ 2020-06-02  2:48 kbuild test robot
  2020-06-02  3:14 ` Chuck Lever
  0 siblings, 1 reply; 2+ messages in thread
From: kbuild test robot @ 2020-06-02  2:48 UTC (permalink / raw)
  To: kbuild-all

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   e7b08814b16b80a0bf76eeca16317f8c2ed23b8c
commit: ca07eda33e01eafa7a26ec06974f7eacee6a89c8 [10476/14131] SUNRPC: Refactor svc_recvfrom()
config: i386-randconfig-a006-20200602 (attached as .config)
compiler: gcc-6 (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
reproduce (this is a W=1 build):
        git checkout ca07eda33e01eafa7a26ec06974f7eacee6a89c8
        # save the attached .config to linux build tree
        make W=1 ARCH=i386 

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

All warnings (new ones prefixed by >>, old ones prefixed by <<):

>> net/sunrpc/svcsock.c:226:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined [-Wundef]
#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

vim +/ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE +226 net/sunrpc/svcsock.c

   225	
 > 226	#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
   227	static void svc_flush_bvec(const struct bio_vec *bvec, size_t size, size_t seek)
   228	{
   229		struct bvec_iter bi = {
   230			.bi_size	= size,
   231		};
   232		struct bio_vec bv;
   233	
   234		bvec_iter_advance(bvec, &bi, seek & PAGE_MASK);
   235		for_each_bvec(bv, bvec, bi, bi)
   236			flush_dcache_page(bv.bv_page);
   237	}
   238	#else
   239	static inline void svc_flush_bvec(const struct bio_vec *bvec, size_t size,
   240					  size_t seek)
   241	{
   242	}
   243	#endif
   244	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

[-- Attachment #2: config.gz --]
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^ permalink raw reply	[flat|nested] 2+ messages in thread
* Re: [linux-next:master 10476/14131] net/sunrpc/svcsock.c:226:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined
  2020-06-02  2:48 [linux-next:master 10476/14131] net/sunrpc/svcsock.c:226:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined kbuild test robot
@ 2020-06-02  3:14 ` Chuck Lever
  0 siblings, 0 replies; 2+ messages in thread
From: Chuck Lever @ 2020-06-02  3:14 UTC (permalink / raw)
  To: kbuild-all

[-- Attachment #1: Type: text/plain, Size: 4927 bytes --]



> On Jun 1, 2020, at 10:48 PM, kbuild test robot <lkp@intel.com> wrote:
> 
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head:   e7b08814b16b80a0bf76eeca16317f8c2ed23b8c
> commit: ca07eda33e01eafa7a26ec06974f7eacee6a89c8 [10476/14131] SUNRPC: Refactor svc_recvfrom()
> config: i386-randconfig-a006-20200602 (attached as .config)
> compiler: gcc-6 (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
> reproduce (this is a W=1 build):
>        git checkout ca07eda33e01eafa7a26ec06974f7eacee6a89c8
>        # save the attached .config to linux build tree
>        make W=1 ARCH=i386 
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kbuild test robot <lkp@intel.com>
> 
> All warnings (new ones prefixed by >>, old ones prefixed by <<):
> 
>>> net/sunrpc/svcsock.c:226:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined [-Wundef]
> #if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This appears to be a problem with ARCH=i386, not with my patch?

[cel(a)klimt linux]$ git grep ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
arch/alpha/include/asm/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
arch/arc/include/asm/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
arch/arm/include/asm/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
arch/arm64/include/asm/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
arch/c6x/include/asm/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
arch/csky/abiv1/inc/abi/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
arch/csky/abiv2/inc/abi/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
arch/hexagon/include/asm/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
arch/ia64/include/asm/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
arch/m68k/include/asm/cacheflush_mm.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
arch/m68k/include/asm/cacheflush_no.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
arch/microblaze/include/asm/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
arch/mips/include/asm/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
arch/nds32/include/asm/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
arch/nios2/include/asm/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
arch/openrisc/include/asm/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
arch/parisc/include/asm/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
arch/powerpc/include/asm/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
arch/riscv/include/asm/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
arch/sh/include/asm/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
arch/sparc/include/asm/cacheflush_32.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
arch/sparc/include/asm/cacheflush_64.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
arch/unicore32/include/asm/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
arch/xtensa/include/asm/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
arch/xtensa/include/asm/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
block/blk-core.c:#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
include/asm-generic/cacheflush.h:#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
include/crypto/scatterwalk.h:           /* Test ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE first as
include/crypto/scatterwalk.h:           if (ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE && !PageSlab(page))
include/linux/blkdev.h:#ifndef ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
include/linux/blkdev.h:# error  "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
include/linux/blkdev.h:#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
net/packet/af_packet.c:#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE == 1
net/packet/af_packet.c:#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE == 1
net/packet/af_packet.c:#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE == 1
net/sunrpc/svcsock.c:#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
net/sunrpc/xprtsock.c:#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
[cel(a)klimt linux]$


> vim +/ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE +226 net/sunrpc/svcsock.c
> 
>   225	
>> 226	#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
>   227	static void svc_flush_bvec(const struct bio_vec *bvec, size_t size, size_t seek)
>   228	{
>   229		struct bvec_iter bi = {
>   230			.bi_size	= size,
>   231		};
>   232		struct bio_vec bv;
>   233	
>   234		bvec_iter_advance(bvec, &bi, seek & PAGE_MASK);
>   235		for_each_bvec(bv, bvec, bi, bi)
>   236			flush_dcache_page(bv.bv_page);
>   237	}
>   238	#else
>   239	static inline void svc_flush_bvec(const struct bio_vec *bvec, size_t size,
>   240					  size_t seek)
>   241	{
>   242	}
>   243	#endif
>   244	
> 
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
> <.config.gz>

--
Chuck Lever



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2020-06-02  2:48 [linux-next:master 10476/14131] net/sunrpc/svcsock.c:226:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined kbuild test robot
2020-06-02  3:14 ` Chuck Lever

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