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Thu, 18 Sep 2025 16:19:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 94223C4CEE7; Thu, 18 Sep 2025 16:19:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1758212389; bh=/Bp4ayrRI8DCfRd7XTDaDzrA4t4torLE5+3IaHn/8PA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=jnpukQS51J4MYt0Wcat87Vh/X9PimHXG8pf0rXYEekNeImXxN/4kKsRRdZQo2RHJa 8Mee5HOoMypPugX2YINMABeW2ETswBaoAZTT3BhBkkRD/5HgkTqlFPaUk6S3VW5o3B mQ4SkbGOjub4VUsqodTzS1HBhQ3VJ1C9n78NGGuE= Date: Thu, 18 Sep 2025 18:19:39 +0200 From: Greg Kroah-Hartman To: Adrian =?utf-8?Q?Barna=C5=9B?= Cc: Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] powerpc: cell: make spu_subsys const Message-ID: <2025091830-deeply-crave-728d@gregkh> References: <20250918141633.339803-1-abarnas@google.com> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20250918141633.339803-1-abarnas@google.com> On Thu, Sep 18, 2025 at 02:16:33PM +0000, Adrian Barnaś wrote: > Because driver core can properly handle constant struct bus_type, > move the spu_subsys to be a constant structure as well, placing it into > read-only memory which can not be modified at runtime. > > Signed-off-by: Adrian Barnaś > --- > arch/powerpc/platforms/cell/spu_base.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c > index 2c07387201d0..733b512992c0 100644 > --- a/arch/powerpc/platforms/cell/spu_base.c > +++ b/arch/powerpc/platforms/cell/spu_base.c > @@ -464,7 +464,7 @@ void spu_init_channels(struct spu *spu) > } > EXPORT_SYMBOL_GPL(spu_init_channels); > > -static struct bus_type spu_subsys = { > +static const struct bus_type spu_subsys = { > .name = "spu", > .dev_name = "spu", > }; > -- > 2.51.0.470.ga7dc726c21-goog > Reviewed-by: Greg Kroah-Hartman