linux-kernel - Re: [PATCH v2 2/3] nvme-hwmon: Kmalloc the NVME SMART log buffer

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Message-ID: <20221018144924.GB20131@lst.de>
Date:   Tue, 18 Oct 2022 16:49:24 +0200
From:   Christoph Hellwig <hch@....de>
To:     Serge Semin <fancer.lancer@...il.com>
Cc:     Christoph Hellwig <hch@....de>,
        Serge Semin <Sergey.Semin@...kalelectronics.ru>,
        Jens Axboe <axboe@...nel.dk>, Keith Busch <kbusch@...nel.org>,
        Jens Axboe <axboe@...com>, Sagi Grimberg <sagi@...mberg.me>,
        Guenter Roeck <linux@...ck-us.net>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Pavel Parkhomenko <Pavel.Parkhomenko@...kalelectronics.ru>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        linux-nvme@...ts.infradead.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/3] nvme-hwmon: Kmalloc the NVME SMART log buffer

On Mon, Oct 17, 2022 at 07:16:56PM +0300, Serge Semin wrote:
> Please note the applied patch doesn't comply with the Keith' notes
> Link: https://lore.kernel.org/linux-nvme/YzxueNRODpry8L0%2F@kbusch-mbp.dhcp.thefacebook.com/
> Meanwhile without patch #1 (having only the accepted by you patch
> applied) the NVME hwmon init now seems contradicting: it ignores one
> kmalloc failure (returns zero) but fails on another one (returns
> -ENOMEM). I asked you to have a look at the patches #1 and #2 of the
> series
> Link: https://lore.kernel.org/linux-nvme/20221007100134.faaekmuqyd5vy34m@mobilestation/
> and give your opinion whether the re-spin was required: take the
> Keith' notes or keep the patches as is. Could you please clarify the
> situation?

I'll fix this patch up to follow the recommendation from Keith, I somehow
thought this was already done.