From: Madhavan Srinivasan <maddy@linux.ibm.com>
To: Geoff Levand <geoff@infradead.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Nicholas Piggin <npiggin@gmail.com>,
"Christophe Leroy (CS GROUP)" <chleroy@kernel.org>,
Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>,
Paul Mackerras <paulus@ozlabs.org>,
MOKUNO Masakazu <mokuno@sm.sony.co.jp>,
Thorsten Blum <thorsten.blum@linux.dev>
Cc: stable@vger.kernel.org,
Geoff Levand <geoffrey.levand@am.sony.com>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] powerpc/ps3: Fix map failure path in dma_ioc0_map_pages()
Date: Thu, 30 Jul 2026 11:11:36 +0530 [thread overview]
Message-ID: <178538948395.1278583.8213797923163532794.b4-ty@linux.ibm.com> (raw)
In-Reply-To: <20260711130931.740719-3-thorsten.blum@linux.dev>
On Sat, 11 Jul 2026 15:09:32 +0200, Thorsten Blum wrote:
> If lv1_put_iopte() fails in dma_ioc0_map_pages(), the error path
> decrements iopage but keeps using the failed mapping's offset. As a
> result, it repeatedly tries to invalidate the failed IOPTE slot and
> leaves the already installed IOPTEs valid.
>
> Recompute offset and invalidate the installed IOPTEs instead.
>
> [...]
Applied to powerpc/fixes.
[1/1] powerpc/ps3: Fix map failure path in dma_ioc0_map_pages()
https://git.kernel.org/powerpc/c/0bb024f11d120abff3e8db9144a585b9d7fb8459
cheers
prev parent reply other threads:[~2026-07-30 5:42 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-11 13:09 [PATCH] powerpc/ps3: Fix map failure path in dma_ioc0_map_pages() Thorsten Blum
2026-07-13 7:21 ` Geert Uytterhoeven
2026-07-13 12:38 ` Ritesh Harjani
2026-07-13 15:08 ` Thorsten Blum
2026-07-13 16:19 ` Florian Fuchs
2026-07-30 5:41 ` Madhavan Srinivasan [this message]
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