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Message-ID: <20191104194357.GE16031@gate.crashing.org>
Date: Mon, 4 Nov 2019 13:43:57 -0600
From: Segher Boessenkool <segher@...nel.crashing.org>
To: "Alastair D'Silva" <alastair@....ibm.com>
Cc: alastair@...ilva.org,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
David Hildenbrand <david@...hat.com>,
linux-kernel@...r.kernel.org, stable@...r.kernel.org,
Paul Mackerras <paulus@...ba.org>,
Nicholas Piggin <npiggin@...il.com>, Qian Cai <cai@....pw>,
Thomas Gleixner <tglx@...utronix.de>,
linuxppc-dev@...ts.ozlabs.org,
Andrew Morton <akpm@...ux-foundation.org>,
Allison Randal <allison@...utok.net>
Subject: Re: [PATCH v5 1/6] powerpc: Allow flush_icache_range to work across ranges >4GB
On Mon, Nov 04, 2019 at 01:32:53PM +1100, Alastair D'Silva wrote:
> When calling flush_icache_range with a size >4GB, we were masking
> off the upper 32 bits, so we would incorrectly flush a range smaller
> than intended.
>
> This patch replaces the 32 bit shifts with 64 bit ones, so that
> the full size is accounted for.
Please send this separately, to be committed right now? It is a bug fix,
independent of the rest of the series.
Segher
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