diff options
| author | Jiaxun Yang <jiaxun.yang@flygoat.com> | 2023-04-24 11:31:55 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-05-30 14:03:20 +0100 |
| commit | dc1b7641a98933356f91de1b5248c87b1b869862 (patch) | |
| tree | b10ee6f43fc2a289900e6ae9884b599a314641ae /lib/debugobjects.c | |
| parent | 4ca6b06e9be253d2a34676052ed9189c610044f7 (diff) | |
irqchip/mips-gic: Don't touch vl_map if a local interrupt is not routable
commit 2c6c9c049510163090b979ea5f92a68ae8d93c45 upstream.
When a GIC local interrupt is not routable, it's vl_map will be used
to control some internal states for core (providing IPTI, IPPCI, IPFDC
input signal for core). Overriding it will interfere core's intetrupt
controller.
Do not touch vl_map if a local interrupt is not routable, we are not
going to remap it.
Before dd098a0e0319 (" irqchip/mips-gic: Get rid of the reliance on
irq_cpu_online()"), if a local interrupt is not routable, then it won't
be requested from GIC Local domain, and thus gic_all_vpes_irq_cpu_online
won't be called for that particular interrupt.
Fixes: dd098a0e0319 (" irqchip/mips-gic: Get rid of the reliance on irq_cpu_online()")
Cc: stable@vger.kernel.org
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230424103156.66753-2-jiaxun.yang@flygoat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/debugobjects.c')
0 files changed, 0 insertions, 0 deletions