#ifndef _TOOLS_LINUX_ASM_TILE_BARRIER_H
#define _TOOLS_LINUX_ASM_TILE_BARRIER_H
/*
* FIXME: This came from tools/perf/perf-sys.h, where it was first introduced
* in 620830b6954913647b7c7f68920cf48eddf6ad92, more work needed to make it
* more closely follow the Linux kernel arch/tile/include/asm/barrier.h file.
* Probably when we continue work on tools/ Kconfig support to have all the
* CONFIG_ needed for properly doing that.
*/
#define mb() asm volatile ("mf" ::: "memory")
#define wmb() mb()
#define rmb() mb()
#endif /* _TOOLS_LINUX_ASM_TILE_BARRIER_H */
Git repository'/>
PCI/MSI: pci-xgene-msi: Fix CPU hotplug registration handling
The conversion to the new hotplug state machine introduced a regression
where a successful hotplug registration would be treated as an error,
effectively disabling the MSI driver forever.
Fix it by doing the proper check on the return value.
Fixes: 9c248f8896e6 ("PCI/xgene-msi: Convert to hotplug state machine")
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Duc Dang <dhdang@apm.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: stable@vger.kernel.org