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| author |   Niklas Schnelle <schnelle@linux.ibm.com> | 2020-04-16 13:44:30 +0200 |
|---|---|---|
| committer |   Vasily Gorbik <gor@linux.ibm.com> | 2020-04-22 16:20:55 +0200 |
| commit | 86dbf32da150339ca81509fa2eb84c814b55258b (patch) | |
| tree | ab5ee62ee7037598a250285331c31261ed51df5e /arch/s390/kernel/uv.c | |
| parent | s390/ftrace: fix potential crashes when switching tracers (diff) | |
| download | linux-dev-86dbf32da150339ca81509fa2eb84c814b55258b.tar.xz linux-dev-86dbf32da150339ca81509fa2eb84c814b55258b.zip | |
s390/pci: do not set affinity for floating irqs
with the introduction of CPU directed interrupts the kernel
parameter pci=force_floating was introduced to fall back
to the previous behavior using floating irqs.
However we were still setting the affinity in that case,
both in __irq_alloc_descs() and via the irq_set_affinity
callback in struct irq_chip.
For the former only set the affinity in the directed case.
The latter is explicitly set in zpci_directed_irq_init()
so we can just leave it unset for the floating case.
Fixes: e979ce7bced2 ("s390/pci: provide support for CPU directed interrupts")
Co-developed-by: Alexander Schmidt <alexs@linux.ibm.com>
Signed-off-by: Alexander Schmidt <alexs@linux.ibm.com>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel/uv.c')
0 files changed, 0 insertions, 0 deletions