netdev - Re: [PATCH net-next 2/2] selftests: drv-net: fix RPS mask handling for high CPU numbers

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Message-ID: <willemdebruijn.kernel.e28b1e33bbf@gmail.com>
Date: Sun, 11 Jan 2026 22:29:37 -0500
From: Willem de Bruijn <willemdebruijn.kernel@...il.com>
To: Gal Pressman <gal@...dia.com>, 
 "David S. Miller" <davem@...emloft.net>, 
 Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, 
 Paolo Abeni <pabeni@...hat.com>, 
 Andrew Lunn <andrew+netdev@...n.ch>, 
 netdev@...r.kernel.org
Cc: Shuah Khan <shuah@...nel.org>, 
 Willem de Bruijn <willemb@...gle.com>, 
 Petr Machata <petrm@...dia.com>, 
 Coco Li <lixiaoyan@...gle.com>, 
 linux-kselftest@...r.kernel.org, 
 Gal Pressman <gal@...dia.com>, 
 Nimrod Oren <noren@...dia.com>
Subject: Re: [PATCH net-next 2/2] selftests: drv-net: fix RPS mask handling
 for high CPU numbers

Gal Pressman wrote:
> The RPS bitmask bounds check uses ~(RPS_MAX_CPUS - 1) which equals ~15 =
> 0xfff0, only allowing CPUs 0-3.
> 
> Change the mask to ~((1UL << RPS_MAX_CPUS) - 1) = ~0xffff to allow CPUs
> 0-15.
> 
> Fixes: 5ebfb4cc3048 ("selftests/net: toeplitz test")
> Reviewed-by: Nimrod Oren <noren@...dia.com>
> Signed-off-by: Gal Pressman <gal@...dia.com>

Should go to net instead of net-next?

Reviewed-by: Willem de Bruijn <willemb@...gle.com>