linux-kernel - Re: [PATCH] powerpc/powernv/pci: fix a RCU-list lock

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Message-Id: <161235200863.1516112.12206707948646314806.b4-ty@ellerman.id.au>
Date:   Wed,  3 Feb 2021 22:40:03 +1100 (AEDT)
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     mpe@...erman.id.au, Qian Cai <cai@....pw>
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        paulus@...ba.org, aik@...abs.ru, paulmck@...nel.org
Subject: Re: [PATCH] powerpc/powernv/pci: fix a RCU-list lock

On Sun, 10 May 2020 01:13:47 -0400, Qian Cai wrote:
> It is unsafe to traverse tbl->it_group_list without the RCU read lock.
> 
>  WARNING: suspicious RCU usage
>  5.7.0-rc4-next-20200508 #1 Not tainted
>  -----------------------------
>  arch/powerpc/platforms/powernv/pci-ioda-tce.c:355 RCU-list traversed in non-reader section!!
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc/powernv/pci: fix a RCU-list lock
      https://git.kernel.org/powerpc/c/c9790fb5df461c91d3fff1d864c1acb8baf5ad5c

cheers