From: Jens Axboe <axboe@kernel•dk>
To: Stephen Rothwell <sfr@canb•auug.org.au>
Cc: Linux Next Mailing List <linux-next@vger•kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger•kernel.org>
Subject: Re: linux-next: build warnings after merge of the block tree
Date: Mon, 2 Mar 2020 19:59:08 -0700 [thread overview]
Message-ID: <ab8305a0-dda4-7b5d-2dec-00032410d6a3@kernel.dk> (raw)
In-Reply-To: <20200303124133.13309249@canb.auug.org.au>
On 3/2/20 6:41 PM, Stephen Rothwell wrote:
> Hi all,
>
> After merging the block tree, today's linux-next build (arm
> multi_v7_defconfig) produced these warnings:
>
> fs/io_uring.c: In function 'io_put_kbuf':
> fs/io_uring.c:1651:27: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
> 1651 | struct io_buffer *kbuf = (struct io_buffer *) req->rw.addr;
> | ^
> fs/io_uring.c: In function 'io_rw_buffer_select':
> fs/io_uring.c:2209:27: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
> 2209 | struct io_buffer *kbuf = (struct io_buffer *) req->rw.addr;
> | ^
> fs/io_uring.c:2216:17: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
> 2216 | req->rw.addr = (u64) kbuf;
> | ^
> fs/io_uring.c: In function 'io_cleanup_req':
> fs/io_uring.c:4897:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
> 4897 | kfree((void *)req->rw.addr);
> | ^
>
> Introduced by commits
>
> 7efcbb97deab ("io_uring: support buffer selection for OP_READ and OP_RECV")
> 8cab19f460b6 ("io_uring: add IOSQE_BUFFER_SELECT support for IORING_OP_READV")
Thanks Stephen, I added a fixup patch. I wish we had u64_to_ptr() and
ptr_to_u64(), but that's only for the __user pointers...
--
Jens Axboe
next prev parent reply other threads:[~2020-03-03 2:59 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-03 1:41 linux-next: build warnings after merge of the block tree Stephen Rothwell
2020-03-03 2:59 ` Jens Axboe [this message]
-- strict thread matches above, loose matches on Subject: below --
2024-09-16 8:36 Stephen Rothwell
2024-09-16 8:49 ` Keith Busch
2024-09-27 3:43 ` Stephen Rothwell
2024-09-27 10:20 ` Jens Axboe
2024-10-03 3:18 ` Stephen Rothwell
2024-10-03 12:31 ` Jens Axboe
2024-02-06 2:10 Stephen Rothwell
2024-02-06 4:13 ` Stephen Rothwell
2024-02-06 11:12 ` Geert Uytterhoeven
2024-02-06 13:42 ` Geert Uytterhoeven
2024-02-06 14:53 ` Jens Axboe
2024-02-06 14:49 ` Jens Axboe
2023-07-27 6:10 Stephen Rothwell
2023-07-27 12:41 ` Jens Axboe
2023-03-27 1:00 Stephen Rothwell
2023-03-27 16:26 ` Josh Poimboeuf
2023-03-27 23:47 ` Stephen Rothwell
2023-04-11 21:34 ` Stephen Rothwell
2023-04-11 21:55 ` Josh Poimboeuf
2023-04-11 22:39 ` Jens Axboe
2023-04-12 0:14 ` Josh Poimboeuf
2023-04-12 1:48 ` Jens Axboe
2023-04-12 11:44 ` Peter Zijlstra
2023-04-12 16:25 ` Josh Poimboeuf
2023-04-12 16:35 ` Jens Axboe
2023-04-12 16:44 ` Jens Axboe
2023-04-12 16:56 ` Josh Poimboeuf
2023-04-12 17:57 ` Jens Axboe
2023-06-16 12:43 ` Peter Zijlstra
2023-06-16 12:49 ` Borislav Petkov
2023-07-03 11:04 ` Peter Zijlstra
2023-07-03 14:18 ` Jens Axboe
2023-07-03 15:14 ` Peter Zijlstra
2023-04-11 22:30 ` Jens Axboe
2022-07-15 11:51 Stephen Rothwell
2018-03-01 0:26 Stephen Rothwell
2018-03-01 4:02 ` Anshuman Khandual
2018-03-01 15:37 ` Jens Axboe
2013-11-26 2:29 Stephen Rothwell
2013-11-26 3:35 ` Stephen Rothwell
2013-11-26 19:01 ` Olof Johansson
2013-11-26 19:02 ` Jens Axboe
2011-01-07 0:02 Stephen Rothwell
2011-01-07 1:49 ` Mathieu Desnoyers
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