x86/irq: Unionize PID.PIR for 64bit access w/o casting
authorJacob Pan <jacob.jun.pan@linux.intel.com>
Tue, 23 Apr 2024 17:41:04 +0000 (10:41 -0700)
committerThomas Gleixner <tglx@linutronix.de>
Mon, 29 Apr 2024 22:54:42 +0000 (00:54 +0200)
commit4ec8fd037139a4d8afb2a5c7edb4a17f9449a035
treea56fc47fb9e80924c7d0e5cb00bc9e9750301467
parent699f67512f04cbaee965fad872702c06eaf440f6
x86/irq: Unionize PID.PIR for 64bit access w/o casting

Make the PIR field into u64 such that atomic xchg64 can be used without
ugly casting.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240423174114.526704-3-jacob.jun.pan@linux.intel.com
arch/x86/include/asm/posted_intr.h