From: Niklas Cassel <Niklas.Cassel@wdc.com>
To: Christoph Hellwig <hch@lst.de>
Cc: Keith Busch <kbusch@kernel.org>, Jens Axboe <axboe@fb.com>,
Sagi Grimberg <sagi@grimberg.me>,
Chaitanya Kulkarni <Chaitanya.Kulkarni@wdc.com>,
"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 0/2] remove workarounds for gcc bug wrt unnamed fields in initializers
Date: Wed, 24 Jun 2020 17:08:12 +0000 [thread overview]
Message-ID: <20200624170811.GA396203@localhost.localdomain> (raw)
In-Reply-To: <20200624170211.GA25230@lst.de>
On Wed, Jun 24, 2020 at 07:02:11PM +0200, Christoph Hellwig wrote:
> On Wed, Jun 24, 2020 at 04:57:48PM +0000, Niklas Cassel wrote:
> > On Wed, Jun 24, 2020 at 06:44:41PM +0200, Christoph Hellwig wrote:
> > > This looks good to me, but I'd rather wait a few releases to
> > > avoid too mush backporting pain.
> >
> > Chaitanya made me realize that about half of the nvme functions
> > are using "struct nvme_command c" on the stack, and then memsets
> > it, and half of the nvme functions are using an initializer.
> >
> > IMHO, using an initializer is more clear.
> >
> > memset has to be used if the function needs to reset an
> > existing struct, but in none of the functions that I've seen,
> > are we given an existing nvme_command that we need to reset.
> > All the functions that I've seen declares a new nvme_command
> > on the stack (so an initializer makes more sense).
> >
> > What do you think about me unifying this later on?
>
> I like the initializers a lot. But as I said I'd rather wait a
> bit for now.
Just to be clear:
Even with these patches, about half of the nvme functions are using
memset rather than initializers.
But sure, I'll wait a couple of releases, and then rebase this,
and additionally convert the "struct nvme_command c" memset users
to use initializers.
Kind regards,
Niklas
next prev parent reply other threads:[~2020-06-24 17:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-18 20:02 [PATCH v2 0/2] remove workarounds for gcc bug wrt unnamed fields in initializers Niklas Cassel
2020-06-18 20:02 ` [PATCH v2 1/2] nvme: " Niklas Cassel
2020-06-18 20:02 ` [PATCH v2 2/2] nvmet: " Niklas Cassel
2020-06-24 16:44 ` [PATCH v2 0/2] " Christoph Hellwig
2020-06-24 16:57 ` Niklas Cassel
2020-06-24 17:02 ` Christoph Hellwig
2020-06-24 17:08 ` Niklas Cassel [this message]
2020-06-24 22:40 ` Chaitanya Kulkarni
2020-06-25 11:10 ` Niklas Cassel
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