netdev - RE: [PATCH] drivers/net/b44: Change to non-atomic bit operations

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Message-ID: <3908561D78D1C84285E8C5FCA982C28F7F515CBB@ORSMSX115.amr.corp.intel.com>
Date:   Thu, 2 Jan 2020 18:22:52 +0000
From:   "Luck, Tony" <tony.luck@...el.com>
To:     Stephen Hemminger <stephen@...workplumber.org>,
        "Yu, Fenghua" <fenghua.yu@...el.com>
CC:     David Miller <davem@...emloft.net>,
        "michael.chan@...adcom.com" <michael.chan@...adcom.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "luto@...nel.org" <luto@...nel.org>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "David.Laight@...LAB.COM" <David.Laight@...LAB.COM>,
        "Shankar, Ravi V" <ravi.v.shankar@...el.com>
Subject: RE: [PATCH] drivers/net/b44: Change to non-atomic bit operations

> Why not just make pwol_pattern aligned and choose the right word to do
> the operation on?

We use that approach for places where the operation needs to be atomic.

But this one doesn't need an atomic operation since there can be no other
entity operating on the same bitmap in parallel.

-Tony