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[115.64.213.93]) by smtp.gmail.com with ESMTPSA id p43sm21757902pfw.4.2021.11.30.21.50.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Nov 2021 21:50:29 -0800 (PST) Date: Wed, 01 Dec 2021 15:50:24 +1000 From: Nicholas Piggin Subject: Re: [PATCH v2 rebased 3/9] powerpc/mm: Remove CONFIG_PPC_MM_SLICES To: alex@ghiti.fr, Benjamin Herrenschmidt , Christophe Leroy , Michael Ellerman , Paul Mackerras Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org References: <103550e29fc95a6f93ec8848f9ebf9054ca024a3.1637862579.git.christophe.leroy@csgroup.eu> In-Reply-To: <103550e29fc95a6f93ec8848f9ebf9054ca024a3.1637862579.git.christophe.leroy@csgroup.eu> MIME-Version: 1.0 Message-Id: <1638337392.ccyk5edcqo.astroid@bobo.none> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 75E85F0000AA X-Stat-Signature: mq5j9brazx8cjwzz5gosk55ki5rduk3s Authentication-Results: imf11.hostedemail.com; dkim=pass header.d=gmail.com header.s=20210112 header.b=WM7Cf9O2; spf=pass (imf11.hostedemail.com: domain of npiggin@gmail.com designates 209.85.210.175 as permitted sender) smtp.mailfrom=npiggin@gmail.com; dmarc=pass (policy=none) header.from=gmail.com X-HE-Tag: 1638337830-163160 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Excerpts from Christophe Leroy's message of November 26, 2021 3:52 am: > CONFIG_PPC_MM_SLICES is always selected by hash book3s/64. > CONFIG_PPC_MM_SLICES is never selected by other platforms. >=20 > Remove it. I guess there is some remnants of code/data to build 64s hash without=20 slices. Maybe without any huge page support? I guess it's probably broken if it never =3Dn, and not worth maintaining anyway? Reviewed-by: Nicholas Piggin >=20 > Signed-off-by: Christophe Leroy > --- > arch/powerpc/include/asm/book3s/64/hash.h | 4 ++-- > arch/powerpc/include/asm/hugetlb.h | 2 +- > arch/powerpc/include/asm/paca.h | 7 ------- > arch/powerpc/include/asm/slice.h | 13 ++----------- > arch/powerpc/kernel/paca.c | 5 ----- > arch/powerpc/mm/book3s64/Makefile | 3 +-- > arch/powerpc/mm/book3s64/hash_utils.c | 14 -------------- > arch/powerpc/platforms/Kconfig.cputype | 4 ---- > 8 files changed, 6 insertions(+), 46 deletions(-)