Re: linux-next: build failure after merge of the s390 tree

[Stephen Rothwell <sfr@canb.auug.org.au>]

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Hi all,

Just a reminder for the upcoming merge window ...

On Thu, 8 Aug 2024 13:58:36 +1000 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> After merging the s390 tree, today's linux-next build (s390 defconfig)
> failed like this:
> 
> In file included from include/linux/percpu.h:5,
>                  from include/linux/percpu_counter.h:14,
>                  from include/linux/mm_types.h:21,
>                  from include/linux/ptdump.h:6,
>                  from arch/s390/mm/dump_pagetables.c:3:
> arch/s390/mm/dump_pagetables.c: In function 'add_marker':
> include/linux/slab.h:848:61: error: too many arguments to function 'kvrealloc_noprof'
>   848 | #define kvrealloc(...)                          alloc_hooks(kvrealloc_noprof(__VA_ARGS__))
>       |                                                             ^~~~~~~~~~~~~~~~
> include/linux/alloc_tag.h:206:16: note: in definition of macro 'alloc_hooks_tag'
>   206 |         typeof(_do_alloc) _res = _do_alloc;                             \
>       |                ^~~~~~~~~
> include/linux/slab.h:848:49: note: in expansion of macro 'alloc_hooks'
>   848 | #define kvrealloc(...)                          alloc_hooks(kvrealloc_noprof(__VA_ARGS__))
>       |                                                 ^~~~~~~~~~~
> arch/s390/mm/dump_pagetables.c:259:27: note: in expansion of macro 'kvrealloc'
>   259 |                 markers = kvrealloc(markers, oldsize, newsize, GFP_KERNEL);
>       |                           ^~~~~~~~~
> In file included from include/linux/fs.h:45,
>                  from include/linux/seq_file.h:11,
>                  from arch/s390/mm/dump_pagetables.c:4:
> include/linux/slab.h:846:7: note: declared here
>   846 | void *kvrealloc_noprof(const void *p, size_t size, gfp_t flags)
>       |       ^~~~~~~~~~~~~~~~
> include/linux/slab.h:848:61: error: too many arguments to function 'kvrealloc_noprof'
>   848 | #define kvrealloc(...)                          alloc_hooks(kvrealloc_noprof(__VA_ARGS__))
>       |                                                             ^~~~~~~~~~~~~~~~
> include/linux/alloc_tag.h:206:34: note: in definition of macro 'alloc_hooks_tag'
>   206 |         typeof(_do_alloc) _res = _do_alloc;                             \
>       |                                  ^~~~~~~~~
> include/linux/slab.h:848:49: note: in expansion of macro 'alloc_hooks'
>   848 | #define kvrealloc(...)                          alloc_hooks(kvrealloc_noprof(__VA_ARGS__))
>       |                                                 ^~~~~~~~~~~
> arch/s390/mm/dump_pagetables.c:259:27: note: in expansion of macro 'kvrealloc'
>   259 |                 markers = kvrealloc(markers, oldsize, newsize, GFP_KERNEL);
>       |                           ^~~~~~~~~
> include/linux/slab.h:846:7: note: declared here
>   846 | void *kvrealloc_noprof(const void *p, size_t size, gfp_t flags)
>       |       ^~~~~~~~~~~~~~~~
> 
> Caused by commit
> 
>   d0e7915d2ad3 ("s390/mm/ptdump: Generate address marker array dynamically")
> 
> interacting with commit
> 
>   d4a913add37d ("mm: kvmalloc: align kvrealloc() with krealloc()")
> 
> from the mm-unstable branch of the mm tree.
> 
> I have applied the following merge fix patch.
> 
> From: Stephen Rothwell <sfr@canb.auug.org.au>
> Date: Thu, 8 Aug 2024 13:50:39 +1000
> Subject: [PATCH] fixup for "s390/mm/ptdump: Generate address marker array dynamically"
> 
> interacting with "mm: kvmalloc: align kvrealloc() with krealloc()"
> from the mm tree.
> 
> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
> ---
>  arch/s390/mm/dump_pagetables.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/s390/mm/dump_pagetables.c b/arch/s390/mm/dump_pagetables.c
> index 9e2dc42143b3..fa54f3bc0c8d 100644
> --- a/arch/s390/mm/dump_pagetables.c
> +++ b/arch/s390/mm/dump_pagetables.c
> @@ -256,7 +256,7 @@ static int add_marker(unsigned long start, unsigned long end, const char *name)
>  	if (!oldsize)
>  		markers = kvmalloc(newsize, GFP_KERNEL);
>  	else
> -		markers = kvrealloc(markers, oldsize, newsize, GFP_KERNEL);
> +		markers = kvrealloc(markers, newsize, GFP_KERNEL);
>  	if (!markers)
>  		goto error;
>  	markers[markers_cnt].is_start = 1;
> -- 
> 2.43.0

-- 
Cheers,
Stephen Rothwell

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