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

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Message-ID: <5a9bf632-2466-bc73-45d3-104c4bb0245a@kernel.dk>
Date:   Thu, 17 Oct 2019 18:56:39 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: build warning after merge of the block tree

On 10/17/19 6:51 PM, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the block tree, today's linux-next build (arm
> multi_v7_defconfig) produced this warning:
> 
> fs/io_uring.c: In function 'io_accept':
> fs/io_uring.c:1729:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
>   1729 |  addr = (struct sockaddr __user *) READ_ONCE(sqe->addr);
>        |         ^
> fs/io_uring.c:1730:13: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
>   1730 |  addr_len = (int __user *) READ_ONCE(sqe->addr2);
>        |             ^
> 
> Introduced by commit
> 
>    d674c2b9335f ("io_uring: add support for IORING_OP_ACCEPT")
> 
> addr and addr2 are __u64 ...

I'll fix these warnings up, guessing it's 32-bit?

-- 
Jens Axboe