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Message-ID: <22c088e7-1ecf-3dab-de47-23e865d09d1c@embeddedor.com>
Date: Tue, 22 Jun 2021 18:01:02 -0500
From: "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To: Stephen Rothwell <sfr@...b.auug.org.au>
Cc: Kees Cook <keescook@...omium.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Linux Next Mailing List <linux-next@...r.kernel.org>,
David Sterba <dsterba@...e.cz>
Subject: Re: linux-next: build warning after merge of the kspp-gustavo tree
On 6/22/21 17:46, Gustavo A. R. Silva wrote:
> Hi Stephen,
>
> I will remove that commit and work on fixing those issues before
> trying again.
Done:
I just removed commit 8d7900f545f1 ("Makefile: Enable -Warray-bounds"):
https://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux.git/log/?h=for-next/kspp
Sorry for the noise.
Thanks
--
Gustavo
>
> Thanks for the report!
> --
> Gustavo
>
> On 6/22/21 17:39, Stephen Rothwell wrote:
>> Hi all,
>>
>> After merging the kspp-gustavo tree, today's linux-next build (powerpc
>> ppc64_defconfig) produced this warning:
>>
>> In file included from fs/btrfs/ctree.h:9,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/struct-funcs.c: In function 'btrfs_get_token_16':
>> fs/btrfs/struct-funcs.c:80:46: warning: array subscript 1 is above array bounds of 'struct page *[1]' [-Warray-bounds]
>> 80 | token->kaddr = page_address(token->eb->pages[idx + 1]); \
>> | ~~~~~~~~~~~~~~~~^~~~~~~~~
>> include/linux/mm.h:1627:48: note: in definition of macro 'page_address'
>> 1627 | #define page_address(page) lowmem_page_address(page)
>> | ^~~~
>> fs/btrfs/struct-funcs.c:161:1: note: in expansion of macro 'DEFINE_BTRFS_SETGET_BITS'
>> 161 | DEFINE_BTRFS_SETGET_BITS(16)
>> | ^~~~~~~~~~~~~~~~~~~~~~~~
>> In file included from fs/btrfs/ctree.h:32,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/extent_io.h:97:15: note: while referencing 'pages'
>> 97 | struct page *pages[INLINE_EXTENT_BUFFER_PAGES];
>> | ^~~~~
>> In file included from fs/btrfs/ctree.h:9,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/struct-funcs.c: In function 'btrfs_get_16':
>> fs/btrfs/struct-funcs.c:101:32: warning: array subscript 1 is above array bounds of 'struct page * const[1]' [-Warray-bounds]
>> 101 | kaddr = page_address(eb->pages[idx + 1]); \
>> | ~~~~~~~~~^~~~~~~~~
>> include/linux/mm.h:1627:48: note: in definition of macro 'page_address'
>> 1627 | #define page_address(page) lowmem_page_address(page)
>> | ^~~~
>> fs/btrfs/struct-funcs.c:161:1: note: in expansion of macro 'DEFINE_BTRFS_SETGET_BITS'
>> 161 | DEFINE_BTRFS_SETGET_BITS(16)
>> | ^~~~~~~~~~~~~~~~~~~~~~~~
>> In file included from fs/btrfs/ctree.h:32,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/extent_io.h:97:15: note: while referencing 'pages'
>> 97 | struct page *pages[INLINE_EXTENT_BUFFER_PAGES];
>> | ^~~~~
>> In file included from fs/btrfs/ctree.h:9,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/struct-funcs.c: In function 'btrfs_set_token_16':
>> fs/btrfs/struct-funcs.c:133:46: warning: array subscript 1 is above array bounds of 'struct page *[1]' [-Warray-bounds]
>> 133 | token->kaddr = page_address(token->eb->pages[idx + 1]); \
>> | ~~~~~~~~~~~~~~~~^~~~~~~~~
>> include/linux/mm.h:1627:48: note: in definition of macro 'page_address'
>> 1627 | #define page_address(page) lowmem_page_address(page)
>> | ^~~~
>> fs/btrfs/struct-funcs.c:161:1: note: in expansion of macro 'DEFINE_BTRFS_SETGET_BITS'
>> 161 | DEFINE_BTRFS_SETGET_BITS(16)
>> | ^~~~~~~~~~~~~~~~~~~~~~~~
>> In file included from fs/btrfs/ctree.h:32,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/extent_io.h:97:15: note: while referencing 'pages'
>> 97 | struct page *pages[INLINE_EXTENT_BUFFER_PAGES];
>> | ^~~~~
>> In file included from fs/btrfs/ctree.h:9,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/struct-funcs.c: In function 'btrfs_set_16':
>> fs/btrfs/struct-funcs.c:156:32: warning: array subscript 1 is above array bounds of 'struct page * const[1]' [-Warray-bounds]
>> 156 | kaddr = page_address(eb->pages[idx + 1]); \
>> | ~~~~~~~~~^~~~~~~~~
>> include/linux/mm.h:1627:48: note: in definition of macro 'page_address'
>> 1627 | #define page_address(page) lowmem_page_address(page)
>> | ^~~~
>> fs/btrfs/struct-funcs.c:161:1: note: in expansion of macro 'DEFINE_BTRFS_SETGET_BITS'
>> 161 | DEFINE_BTRFS_SETGET_BITS(16)
>> | ^~~~~~~~~~~~~~~~~~~~~~~~
>> In file included from fs/btrfs/ctree.h:32,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/extent_io.h:97:15: note: while referencing 'pages'
>> 97 | struct page *pages[INLINE_EXTENT_BUFFER_PAGES];
>> | ^~~~~
>> In file included from fs/btrfs/ctree.h:9,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/struct-funcs.c: In function 'btrfs_get_token_32':
>> fs/btrfs/struct-funcs.c:80:46: warning: array subscript 1 is above array bounds of 'struct page *[1]' [-Warray-bounds]
>> 80 | token->kaddr = page_address(token->eb->pages[idx + 1]); \
>> | ~~~~~~~~~~~~~~~~^~~~~~~~~
>> include/linux/mm.h:1627:48: note: in definition of macro 'page_address'
>> 1627 | #define page_address(page) lowmem_page_address(page)
>> | ^~~~
>> fs/btrfs/struct-funcs.c:162:1: note: in expansion of macro 'DEFINE_BTRFS_SETGET_BITS'
>> 162 | DEFINE_BTRFS_SETGET_BITS(32)
>> | ^~~~~~~~~~~~~~~~~~~~~~~~
>> In file included from fs/btrfs/ctree.h:32,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/extent_io.h:97:15: note: while referencing 'pages'
>> 97 | struct page *pages[INLINE_EXTENT_BUFFER_PAGES];
>> | ^~~~~
>> In file included from fs/btrfs/ctree.h:9,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/struct-funcs.c: In function 'btrfs_get_32':
>> fs/btrfs/struct-funcs.c:101:32: warning: array subscript 1 is above array bounds of 'struct page * const[1]' [-Warray-bounds]
>> 101 | kaddr = page_address(eb->pages[idx + 1]); \
>> | ~~~~~~~~~^~~~~~~~~
>> include/linux/mm.h:1627:48: note: in definition of macro 'page_address'
>> 1627 | #define page_address(page) lowmem_page_address(page)
>> | ^~~~
>> fs/btrfs/struct-funcs.c:162:1: note: in expansion of macro 'DEFINE_BTRFS_SETGET_BITS'
>> 162 | DEFINE_BTRFS_SETGET_BITS(32)
>> | ^~~~~~~~~~~~~~~~~~~~~~~~
>> In file included from fs/btrfs/ctree.h:32,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/extent_io.h:97:15: note: while referencing 'pages'
>> 97 | struct page *pages[INLINE_EXTENT_BUFFER_PAGES];
>> | ^~~~~
>> In file included from fs/btrfs/ctree.h:9,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/struct-funcs.c: In function 'btrfs_set_token_32':
>> fs/btrfs/struct-funcs.c:133:46: warning: array subscript 1 is above array bounds of 'struct page *[1]' [-Warray-bounds]
>> 133 | token->kaddr = page_address(token->eb->pages[idx + 1]); \
>> | ~~~~~~~~~~~~~~~~^~~~~~~~~
>> include/linux/mm.h:1627:48: note: in definition of macro 'page_address'
>> 1627 | #define page_address(page) lowmem_page_address(page)
>> | ^~~~
>> fs/btrfs/struct-funcs.c:162:1: note: in expansion of macro 'DEFINE_BTRFS_SETGET_BITS'
>> 162 | DEFINE_BTRFS_SETGET_BITS(32)
>> | ^~~~~~~~~~~~~~~~~~~~~~~~
>> In file included from fs/btrfs/ctree.h:32,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/extent_io.h:97:15: note: while referencing 'pages'
>> 97 | struct page *pages[INLINE_EXTENT_BUFFER_PAGES];
>> | ^~~~~
>> In file included from fs/btrfs/ctree.h:9,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/struct-funcs.c: In function 'btrfs_set_32':
>> fs/btrfs/struct-funcs.c:156:32: warning: array subscript 1 is above array bounds of 'struct page * const[1]' [-Warray-bounds]
>> 156 | kaddr = page_address(eb->pages[idx + 1]); \
>> | ~~~~~~~~~^~~~~~~~~
>> include/linux/mm.h:1627:48: note: in definition of macro 'page_address'
>> 1627 | #define page_address(page) lowmem_page_address(page)
>> | ^~~~
>> fs/btrfs/struct-funcs.c:162:1: note: in expansion of macro 'DEFINE_BTRFS_SETGET_BITS'
>> 162 | DEFINE_BTRFS_SETGET_BITS(32)
>> | ^~~~~~~~~~~~~~~~~~~~~~~~
>> In file included from fs/btrfs/ctree.h:32,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/extent_io.h:97:15: note: while referencing 'pages'
>> 97 | struct page *pages[INLINE_EXTENT_BUFFER_PAGES];
>> | ^~~~~
>> In file included from fs/btrfs/ctree.h:9,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/struct-funcs.c: In function 'btrfs_get_token_64':
>> fs/btrfs/struct-funcs.c:80:46: warning: array subscript 1 is above array bounds of 'struct page *[1]' [-Warray-bounds]
>> 80 | token->kaddr = page_address(token->eb->pages[idx + 1]); \
>> | ~~~~~~~~~~~~~~~~^~~~~~~~~
>> include/linux/mm.h:1627:48: note: in definition of macro 'page_address'
>> 1627 | #define page_address(page) lowmem_page_address(page)
>> | ^~~~
>> fs/btrfs/struct-funcs.c:163:1: note: in expansion of macro 'DEFINE_BTRFS_SETGET_BITS'
>> 163 | DEFINE_BTRFS_SETGET_BITS(64)
>> | ^~~~~~~~~~~~~~~~~~~~~~~~
>> In file included from fs/btrfs/ctree.h:32,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/extent_io.h:97:15: note: while referencing 'pages'
>> 97 | struct page *pages[INLINE_EXTENT_BUFFER_PAGES];
>> | ^~~~~
>> In file included from fs/btrfs/ctree.h:9,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/struct-funcs.c: In function 'btrfs_get_64':
>> fs/btrfs/struct-funcs.c:101:32: warning: array subscript 1 is above array bounds of 'struct page * const[1]' [-Warray-bounds]
>> 101 | kaddr = page_address(eb->pages[idx + 1]); \
>> | ~~~~~~~~~^~~~~~~~~
>> include/linux/mm.h:1627:48: note: in definition of macro 'page_address'
>> 1627 | #define page_address(page) lowmem_page_address(page)
>> | ^~~~
>> fs/btrfs/struct-funcs.c:163:1: note: in expansion of macro 'DEFINE_BTRFS_SETGET_BITS'
>> 163 | DEFINE_BTRFS_SETGET_BITS(64)
>> | ^~~~~~~~~~~~~~~~~~~~~~~~
>> In file included from fs/btrfs/ctree.h:32,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/extent_io.h:97:15: note: while referencing 'pages'
>> 97 | struct page *pages[INLINE_EXTENT_BUFFER_PAGES];
>> | ^~~~~
>> In file included from fs/btrfs/ctree.h:9,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/struct-funcs.c: In function 'btrfs_set_token_64':
>> fs/btrfs/struct-funcs.c:133:46: warning: array subscript 1 is above array bounds of 'struct page *[1]' [-Warray-bounds]
>> 133 | token->kaddr = page_address(token->eb->pages[idx + 1]); \
>> | ~~~~~~~~~~~~~~~~^~~~~~~~~
>> include/linux/mm.h:1627:48: note: in definition of macro 'page_address'
>> 1627 | #define page_address(page) lowmem_page_address(page)
>> | ^~~~
>> fs/btrfs/struct-funcs.c:163:1: note: in expansion of macro 'DEFINE_BTRFS_SETGET_BITS'
>> 163 | DEFINE_BTRFS_SETGET_BITS(64)
>> | ^~~~~~~~~~~~~~~~~~~~~~~~
>> In file included from fs/btrfs/ctree.h:32,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/extent_io.h:97:15: note: while referencing 'pages'
>> 97 | struct page *pages[INLINE_EXTENT_BUFFER_PAGES];
>> | ^~~~~
>> In file included from fs/btrfs/ctree.h:9,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/struct-funcs.c: In function 'btrfs_set_64':
>> fs/btrfs/struct-funcs.c:156:32: warning: array subscript 1 is above array bounds of 'struct page * const[1]' [-Warray-bounds]
>> 156 | kaddr = page_address(eb->pages[idx + 1]); \
>> | ~~~~~~~~~^~~~~~~~~
>> include/linux/mm.h:1627:48: note: in definition of macro 'page_address'
>> 1627 | #define page_address(page) lowmem_page_address(page)
>> | ^~~~
>> fs/btrfs/struct-funcs.c:163:1: note: in expansion of macro 'DEFINE_BTRFS_SETGET_BITS'
>> 163 | DEFINE_BTRFS_SETGET_BITS(64)
>> | ^~~~~~~~~~~~~~~~~~~~~~~~
>> In file included from fs/btrfs/ctree.h:32,
>> from fs/btrfs/struct-funcs.c:8:
>> fs/btrfs/extent_io.h:97:15: note: while referencing 'pages'
>> 97 | struct page *pages[INLINE_EXTENT_BUFFER_PAGES];
>> | ^~~~~
>> In file included from include/linux/bvec.h:14,
>> from include/linux/blk_types.h:10,
>> from include/linux/genhd.h:19,
>> from include/linux/blkdev.h:8,
>> from fs/btrfs/disk-io.c:7:
>> fs/btrfs/disk-io.c: In function 'csum_tree_block':
>> fs/btrfs/disk-io.c:225:34: warning: array subscript 1 is above array bounds of 'struct page *[1]' [-Warray-bounds]
>> 225 | kaddr = page_address(buf->pages[i]);
>> | ~~~~~~~~~~^~~
>> include/linux/mm.h:1627:48: note: in definition of macro 'page_address'
>> 1627 | #define page_address(page) lowmem_page_address(page)
>> | ^~~~
>> In file included from fs/btrfs/ctree.h:32,
>> from fs/btrfs/disk-io.c:22:
>> fs/btrfs/extent_io.h:97:15: note: while referencing 'pages'
>> 97 | struct page *pages[INLINE_EXTENT_BUFFER_PAGES];
>> | ^~~~~
>>
>> Introduced by commit
>>
>> 8d7900f545f1 ("Makefile: Enable -Warray-bounds")
>>
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