2020-10-23 06:56:17

by Stephen Rothwell

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Subject: linux-next: build warning after merge of the block tree

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Hi all,

After merging the block tree, today's linux-next build (KCONFIG_NAME)
produced this warning:

fs/io_uring.c: In function 'loop_rw_iter':
fs/io_uring.c:3141:21: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
3141 | iovec.iov_base = (void __user *) req->rw.addr;
| ^

Introduced by commit

a5371db1e38d ("io_uring: make loop_rw_iter() use original user supplied pointers")

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Cheers,
Stephen Rothwell

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2020-10-23 13:23:46

by Jens Axboe

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Subject: Re: linux-next: build warning after merge of the block tree

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On 10/22/20 5:48 PM, Stephen Rothwell wrote:
> Hi all,
>
> After merging the block tree, today's linux-next build (KCONFIG_NAME)
> produced this warning:
>
> fs/io_uring.c: In function 'loop_rw_iter':
> fs/io_uring.c:3141:21: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
> 3141 | iovec.iov_base = (void __user *) req->rw.addr;
> | ^
>
> Introduced by commit
>
> a5371db1e38d ("io_uring: make loop_rw_iter() use original user supplied pointers")

Thanks, not sure why I didn't use u64_to_user_pointer() in the first
place - updated now.

--
Jens Axboe