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[60.240.170.217]) by smtp.gmail.com with ESMTPSA id s6sm1307826pfb.128.2019.05.08.22.37.43 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 08 May 2019 22:37:44 -0700 (PDT) Date: Thu, 09 May 2019 15:37:18 +1000 From: Nicholas Piggin Subject: Re: [PATCH v2 5/5] powerpc/configs: Disable SCOM_DEBUGFS in powernv_defconfig To: Andrew Donnellan , linuxppc-dev@lists.ozlabs.org References: <20190509051119.7694-1-ajd@linux.ibm.com> <20190509051119.7694-5-ajd@linux.ibm.com> In-Reply-To: <20190509051119.7694-5-ajd@linux.ibm.com> MIME-Version: 1.0 User-Agent: astroid/0.14.0 (https://github.com/astroidmail/astroid) Message-Id: <1557380130.bkras9z1l5.astroid@bobo.none> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Andrew Donnellan's on May 9, 2019 3:11 pm: > SCOM_DEBUGFS is really not needed for anything other than low-level > hardware debugging. >=20 > opal-prd uses its own interface (/dev/prd) for SCOM access, so it doesn't > need SCOM_DEBUGFS. >=20 > At some point in the future we'll introduce a debug config fragment where > this can go instead. That doesn't really explain why you want to disable it. It is useful for low level hardware debugging, I added it. obscurity^Wsecurity? >=20 > Signed-off-by: Andrew Donnellan > --- > v1->v2: > - new patch > --- > arch/powerpc/configs/powernv_defconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) >=20 > diff --git a/arch/powerpc/configs/powernv_defconfig b/arch/powerpc/config= s/powernv_defconfig > index ef2ef98d3f28..d5a6608cb2e0 100644 > --- a/arch/powerpc/configs/powernv_defconfig > +++ b/arch/powerpc/configs/powernv_defconfig > @@ -38,7 +38,7 @@ CONFIG_MODULE_UNLOAD=3Dy > CONFIG_MODVERSIONS=3Dy > CONFIG_MODULE_SRCVERSION_ALL=3Dy > CONFIG_PARTITION_ADVANCED=3Dy > -CONFIG_SCOM_DEBUGFS=3Dy > +# CONFIG_SCOM_DEBUGFS is not set > CONFIG_OPAL_PRD=3Dy > CONFIG_PPC_MEMTRACE=3Dy > # CONFIG_PPC_PSERIES is not set > --=20 > 2.20.1 >=20 >=20 =