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From: Ming Lei <[email protected]>
To: Breno Leitao <[email protected]>
Cc: [email protected], [email protected],
	[email protected], [email protected], [email protected], [email protected],
	[email protected], [email protected],
	[email protected], [email protected], [email protected]
Subject: Re: [PATCH v4 3/3] io_uring: Remove unnecessary BUILD_BUG_ON
Date: Thu, 4 May 2023 22:40:17 +0800	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

On Thu, May 04, 2023 at 05:18:56AM -0700, Breno Leitao wrote:
> In the io_uring_cmd_prep_async() there is an unnecessary compilation time
> check to check if cmd is correctly placed at field 48 of the SQE.
> 
> This is unnecessary, since this check is already in place at
> io_uring_init():
> 
>           BUILD_BUG_SQE_ELEM(48, __u64,  addr3);
> 
> Remove it and the uring_cmd_pdu_size() function, which is not used
> anymore.
> 
> Keith started a discussion about this topic in the following thread:
> Link: https://lore.kernel.org/lkml/[email protected]/
> 
> Signed-off-by: Breno Leitao <[email protected]>
> Reviewed-by: Christoph Hellwig <[email protected]>

Reviewed-by: Ming Lei <[email protected]>

Thanks,
Ming


  reply	other threads:[~2023-05-04 14:41 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-04 12:18 [PATCH v4 0/3] io_uring: Pass the whole sqe to commands Breno Leitao
2023-05-04 12:18 ` [PATCH v4 1/3] io_uring: Create a helper to return the SQE size Breno Leitao
2023-05-04 14:39   ` Ming Lei
2023-05-04 12:18 ` [PATCH v4 2/3] io_uring: Pass whole sqe to commands Breno Leitao
2023-05-04 13:55   ` Christoph Hellwig
2023-05-04 14:04   ` Pavel Begunkov
2023-05-04 14:29   ` Ming Lei
2023-05-04 12:18 ` [PATCH v4 3/3] io_uring: Remove unnecessary BUILD_BUG_ON Breno Leitao
2023-05-04 14:40   ` Ming Lei [this message]
2023-05-04 14:09 ` [PATCH v4 0/3] io_uring: Pass the whole sqe to commands Pavel Begunkov
2023-05-04 17:51 ` Jens Axboe

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