Re: linux-next: build failure after merge of the ext3 tree

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On Fri 13-11-20 10:47:36, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the ext3 tree, today's linux-next build (powerpc
> ppc64_defconfig) failed like this:
> 
> In file included from fs/ext2/file.c:28:
> fs/ext2/ext2.h: In function 'ext2_get_page':
> fs/ext2/ext2.h:764:28: error: implicit declaration of function 'ext2_check_page'; did you mean 'ext2_get_page'? [-Werror=implicit-function-declaration]
>   764 |    if (PageError(page) || !ext2_check_page(page, quiet))
>       |                            ^~~~~~~~~~~~~~~
>       |                            ext2_get_page
> In file included from fs/ext2/balloc.c:15:
> fs/ext2/ext2.h: In function 'ext2_get_page':
> fs/ext2/ext2.h:760:22: error: implicit declaration of function 'read_mapping_page'; did you mean 'unmap_mapping_pages'? [-Werror=implicit-function-declaration]
>   760 |  struct page *page = read_mapping_page(mapping, n, NULL);
>       |                      ^~~~~~~~~~~~~~~~~
>       |                      unmap_mapping_pages
> fs/ext2/ext2.h:760:22: warning: initialization of 'struct page *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
> fs/ext2/ext2.h:764:28: error: implicit declaration of function 'ext2_check_page'; did you mean 'ext2_get_page'? [-Werror=implicit-function-declaration]
>   764 |    if (PageError(page) || !ext2_check_page(page, quiet))
>       |                            ^~~~~~~~~~~~~~~
>       |                            ext2_get_page
> In file included from include/linux/buffer_head.h:14,
>                  from fs/ext2/balloc.c:20:
> include/linux/pagemap.h: At top level:
> include/linux/pagemap.h:497:28: error: conflicting types for 'read_mapping_page'
>   497 | static inline struct page *read_mapping_page(struct address_space *mapping,
>       |                            ^~~~~~~~~~~~~~~~~
> In file included from fs/ext2/balloc.c:15:
> fs/ext2/ext2.h:760:22: note: previous implicit declaration of 'read_mapping_page' was here
>   760 |  struct page *page = read_mapping_page(mapping, n, NULL);
>       |                      ^~~~~~~~~~~~~~~~~
> In file included from fs/ext2/dir.c:25:
> fs/ext2/ext2.h: In function 'ext2_get_page':
> fs/ext2/ext2.h:760:22: error: implicit declaration of function 'read_mapping_page'; did you mean 'unmap_mapping_pages'? [-Werror=implicit-function-declaration]
>   760 |  struct page *page = read_mapping_page(mapping, n, NULL);
>       |                      ^~~~~~~~~~~~~~~~~
>       |                      unmap_mapping_pages
> fs/ext2/ext2.h:760:22: warning: initialization of 'struct page *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
> fs/ext2/ext2.h:764:28: error: implicit declaration of function 'ext2_check_page'; did you mean 'ext2_get_page'? [-Werror=implicit-function-declaration]
>   764 |    if (PageError(page) || !ext2_check_page(page, quiet))
>       |                            ^~~~~~~~~~~~~~~
>       |                            ext2_get_page
> In file included from include/linux/buffer_head.h:14,
>                  from fs/ext2/dir.c:26:
> include/linux/pagemap.h: At top level:
> include/linux/pagemap.h:497:28: error: conflicting types for 'read_mapping_page'
>   497 | static inline struct page *read_mapping_page(struct address_space *mapping,
>       |                            ^~~~~~~~~~~~~~~~~
> In file included from fs/ext2/dir.c:25:
> fs/ext2/ext2.h:760:22: note: previous implicit declaration of 'read_mapping_page' was here
>   760 |  struct page *page = read_mapping_page(mapping, n, NULL);
>       |                      ^~~~~~~~~~~~~~~~~
> fs/ext2/dir.c:109:13: error: conflicting types for 'ext2_check_page'
>   109 | static bool ext2_check_page(struct page *page, int quiet)
>       |             ^~~~~~~~~~~~~~~
> In file included from fs/ext2/dir.c:25:
> fs/ext2/ext2.h:764:28: note: previous implicit declaration of 'ext2_check_page' was here
>   764 |    if (PageError(page) || !ext2_check_page(page, quiet))
>       |                            ^~~~~~~~~~~~~~~
> fs/ext2/dir.c:109:13: warning: 'ext2_check_page' defined but not used [-Wunused-function]
>   109 | static bool ext2_check_page(struct page *page, int quiet)
>       |             ^~~~~~~~~~~~~~~
> 
> 
> Caused by commit
> 
>   32559cea1f55 ("fs/ext2: Use ext2_put_page")
> 
> Presumably some missing includes :-(
> 
> I have used the ext3 tree from next-20201112 for today.

Yeah, sorry for that. Should be fixed now.

								Honza
-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR



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