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From: Bart Van Assche <bvanassche@acm.org>
To: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: linux-kernel@vger.kernel.org, Martin Liska <mliska@suse.cz>,
	Jason Gunthorpe <jgg@ziepe.ca>, Leon Romanovsky <leon@kernel.org>,
	linux-rdma@vger.kernel.org
Subject: Re: [PATCH v2] RDMA/srp (gcc13): move large values to a new enum
Date: Mon, 12 Dec 2022 11:28:06 -0800	[thread overview]
Message-ID: <e5dfd705-4d46-f965-6772-4de51798d2ca@acm.org> (raw)
In-Reply-To: <20221212120411.13750-1-jirislaby@kernel.org>

On 12/12/22 04:04, Jiri Slaby (SUSE) wrote:
> Since gcc13, each member of an enum has the same type as the enum [1]. And
> that is inherited from its members. Provided these two:
>    SRP_TAG_NO_REQ        = ~0U,
>    SRP_TAG_TSK_MGMT	= 1U << 31
> all other members are unsigned ints.
> 
> Esp. with SRP_MAX_SGE and SRP_TSK_MGMT_SQ_SIZE and their use in min(),
> this results in the following warnings:
>    include/linux/minmax.h:20:35: error: comparison of distinct pointer types lacks a cast
>    drivers/infiniband/ulp/srp/ib_srp.c:563:42: note: in expansion of macro 'min'
> 
>    include/linux/minmax.h:20:35: error: comparison of distinct pointer types lacks a cast
>    drivers/infiniband/ulp/srp/ib_srp.c:2369:27: note: in expansion of macro 'min'
> 
> So move the large values away to a separate enum, so that they don't
> affect other members.

Reviewed-by: Bart Van Assche <bvanassche@acm.org>


  reply	other threads:[~2022-12-12 19:28 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-12 12:04 Jiri Slaby (SUSE)
2022-12-12 19:28 ` Bart Van Assche [this message]
2022-12-29  7:10 ` Leon Romanovsky

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