Stafford Horne 3fe164e719 openrisc: fix SMP tlb flush NULL pointer dereference ... [ Upstream commit 27dff9a9c247d4e38d82c2e7234914cfe8499294 ] Throughout the OpenRISC kernel port VMA is passed as NULL when flushing kernel tlb entries. Somehow this was missed when I was testing c28b27416d ("openrisc: Implement proper SMP tlb flushing") and now the SMP kernel fails to completely boot. In OpenRISC VMA is used only to determine which cores need to have their TLB entries flushed. This patch updates the logic to flush tlbs on all cores when the VMA is passed as NULL. Also, we update places VMA is passed as NULL to use flush_tlb_kernel_range instead. Now, the only place VMA is passed as NULL is in the implementation of flush_tlb_kernel_range. Fixes: c28b27416d ("openrisc: Implement proper SMP tlb flushing") Reported-by: Jan Henrik Weinstock <jan.weinstock@rwth-aachen.de> Signed-off-by: Stafford Horne <shorne@gmail.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-11-18 14:04:25 +01:00
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boot/dts	…
configs	…
include	openrisc: Define memory barrier mb	2021-06-03 09:00:44 +02:00
kernel	openrisc: fix SMP tlb flush NULL pointer dereference	2021-11-18 14:04:25 +01:00
lib	…
mm	…
Kconfig	…
Kconfig.debug	…
Makefile	…