linux-kernel - Re: next: sh: mm/cache-sh4.c:250:51: error: too few arguments to function 'folio

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Date: Thu, 28 Mar 2024 11:46:12 -0700
From: Andrew Morton <akpm@...ux-foundation.org>
To: Naresh Kamboju <naresh.kamboju@...aro.org>
Cc: open list <linux-kernel@...r.kernel.org>, lkft-triage@...ts.linaro.org,
 linux-mm <linux-mm@...ck.org>, Linux Regressions
 <regressions@...ts.linux.dev>, willy@...radead.org, Arnd Bergmann
 <arnd@...db.de>
Subject: Re: next: sh: mm/cache-sh4.c:250:51: error: too few arguments to
 function 'folio_flags'

On Thu, 28 Mar 2024 19:12:26 +0530 Naresh Kamboju <naresh.kamboju@...aro.org> wrote:

> While building sh defconfig with gcc-11 the following build warnings /
> errors noticed on Linux next-20240328 tag.
> 
> sh:
>   build:
>     * gcc-11-shx3_defconfig  - Failed
>     * gcc-11-dreamcast_defconfig - Failed
>     * gcc-11-defconfig - Failed
> 
> Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>
> 
> Build error:
> ---------
> arch/sh/kernel/cpu/sh4/fpu.c:389:6: warning: no previous prototype for
> 'float_raise' [-Wmissing-prototypes]
>   389 | void float_raise(unsigned int flags)
>       |      ^~~~~~~~~~~
> arch/sh/kernel/cpu/sh4/fpu.c:394:5: warning: no previous prototype for
> 'float_rounding_mode' [-Wmissing-prototypes]
>   394 | int float_rounding_mode(void)
>       |     ^~~~~~~~~~~~~~~~~~~
> In file included from include/linux/thread_info.h:27,
>                  from include/asm-generic/preempt.h:5,
>                  from ./arch/sh/include/generated/asm/preempt.h:1,
>                  from include/linux/preempt.h:79,
>                  from include/linux/spinlock.h:56,
>                  from include/linux/mmzone.h:8,
>                  from include/linux/gfp.h:7,
>                  from include/linux/mm.h:7,
>                  from arch/sh/mm/cache-sh4.c:14:
> arch/sh/mm/cache-sh4.c: In function 'sh4_flush_cache_page':
> arch/sh/mm/cache-sh4.c:250:51: error: too few arguments to function
> 'folio_flags'
>   250 |                         test_bit(PG_dcache_clean, folio_flags(folio)) &&
>       |                                                   ^~~~~~~~~~~
> 

Thanks.

--- a/arch/sh/mm/cache-sh4.c~sh-remove-use-of-pg_arch_1-on-individual-pages-fix
+++ a/arch/sh/mm/cache-sh4.c
@@ -247,7 +247,7 @@ static void sh4_flush_cache_page(void *a
 		 * another ASID than the current one.
 		 */
 		map_coherent = (current_cpu_data.dcache.n_aliases &&
-			test_bit(PG_dcache_clean, folio_flags(folio)) &&
+			test_bit(PG_dcache_clean, folio_flags(folio, 0)) &&
 			page_mapped(page));
 		if (map_coherent)
 			vaddr = kmap_coherent(page, address);
_