linux-kernel - RE: [PATCH] cxl_test: require 64-bit

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Date:   Mon, 19 Dec 2022 16:32:15 -0800
From:   Dan Williams <dan.j.williams@...el.com>
To:     Luis Chamberlain <mcgrof@...nel.org>, <alison.schofield@...el.com>,
        <vishal.l.verma@...el.com>, <ira.weiny@...el.com>,
        <bwidawsk@...nel.org>, <dan.j.williams@...el.com>
CC:     <dave@...olabs.net>, <a.manzanares@...sung.com>,
        <mcgrof@...nel.org>, <linux-cxl@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] cxl_test: require 64-bit

Luis Chamberlain wrote:
> size_t is limited to 32-bits and so the gen_pool_alloc() using
> the size of SZ_64G would map to 0, triggering a low allocation
> which is not expected. Force the dependency on 64-bit for cxl_test
> as that is what it was designed for.
> 
> This issue was found by build test reports when converting this
> driver as a proper upstream driver.

Looks good to me, changed the subject to tools/testing/cxl/ and applied for 6.3.