From mboxrd@z Thu Jan 1 00:00:00 1970 From: mylene.josserand@bootlin.com (=?UTF-8?q?Myl=C3=A8ne=20Josserand?=) Date: Mon, 19 Feb 2018 09:18:37 +0100 Subject: [PATCH v3 7/7] ARM: sun8i: smp: Remove the disabling of CPU0 In-Reply-To: <20180219081837.15482-1-mylene.josserand@bootlin.com> References: <20180219081837.15482-1-mylene.josserand@bootlin.com> Message-ID: <20180219081837.15482-8-mylene.josserand@bootlin.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On sun8i-a63t, hotplug CPU for CPU0 is currently not working. Remove the possibility to disable CPU0 only for sun8i-a83t. Signed-off-by: Myl?ne Josserand --- arch/arm/mach-sunxi/mc_smp.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-sunxi/mc_smp.c b/arch/arm/mach-sunxi/mc_smp.c index fec592bf68b4..69d5ae5b3d72 100644 --- a/arch/arm/mach-sunxi/mc_smp.c +++ b/arch/arm/mach-sunxi/mc_smp.c @@ -661,8 +661,12 @@ static int sunxi_mc_smp_cpu_kill(unsigned int l_cpu) return !ret; } -static bool sunxi_mc_smp_cpu_can_disable(unsigned int __unused) +static bool sunxi_mc_smp_cpu_can_disable(unsigned int cpu) { + /* CPU0 hotplug handled only for sun9i */ + if (of_machine_is_compatible("allwinner,sun8i-a83t")) + if (cpu == 0) + return false; return true; } #endif -- 2.11.0