netdev - Re: [PATCH rdma-next 11/13] nvme: Introduce a local variable

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Message-ID: <c095c9a9-0e77-c8ab-d34e-f4ab42b11938@nvidia.com>
Date:   Tue, 17 Jan 2023 00:32:59 +0000
From:   Chaitanya Kulkarni <chaitanyak@...dia.com>
To:     Leon Romanovsky <leon@...nel.org>, Jason Gunthorpe <jgg@...dia.com>
CC:     Israel Rukshin <israelr@...dia.com>,
        Bryan Tan <bryantan@...are.com>,
        Christoph Hellwig <hch@....de>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>, Jens Axboe <axboe@...com>,
        Keith Busch <kbusch@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-nvme@...ts.infradead.org" <linux-nvme@...ts.infradead.org>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "linux-trace-kernel@...r.kernel.org" 
        <linux-trace-kernel@...r.kernel.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Max Gurtovoy <mgurtovoy@...dia.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Saeed Mahameed <saeedm@...dia.com>,
        Sagi Grimberg <sagi@...mberg.me>,
        Selvin Xavier <selvin.xavier@...adcom.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Vishnu Dasa <vdasa@...are.com>,
        Yishai Hadas <yishaih@...dia.com>
Subject: Re: [PATCH rdma-next 11/13] nvme: Introduce a local variable

On 1/16/23 05:05, Leon Romanovsky wrote:
> From: Israel Rukshin <israelr@...dia.com>
> 
> The patch doesn't change any logic.
> 
> Signed-off-by: Israel Rukshin <israelr@...dia.com>
> Signed-off-by: Leon Romanovsky <leon@...nel.org>
> ---
>   drivers/nvme/host/core.c | 7 ++++---
>   1 file changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
> index 7be562a4e1aa..51a9880db6ce 100644
> --- a/drivers/nvme/host/core.c
> +++ b/drivers/nvme/host/core.c
> @@ -1870,6 +1870,7 @@ static void nvme_update_disk_info(struct gendisk *disk,
>   	sector_t capacity = nvme_lba_to_sect(ns, le64_to_cpu(id->nsze));
>   	unsigned short bs = 1 << ns->lba_shift;
>   	u32 atomic_bs, phys_bs, io_opt = 0;
> +	struct nvme_ctrl *ctrl = ns->ctrl;
>   

I don't think this patch is needed, existing code is more readable and
gives much clarity that we are accessing ctrl from namespace since we
are in nvme_update_disk_info() which is namespace based.

-ck