ARM: entry: avoid clobbering R9 in IRQ handler
authorArd Biesheuvel <ardb@kernel.org>
Mon, 24 Jan 2022 18:36:03 +0000 (19:36 +0100)
committerArd Biesheuvel <ardb@kernel.org>
Tue, 25 Jan 2022 08:53:52 +0000 (09:53 +0100)
commitaa0a20f521516ba83ea29b510fcc12fb35920b48
treecbf4e8efd0f78d41baf6a9c6dede06dd014a7cfa
parent75fa4adc4f50ee52d8cdfa3e84798176ccb4a354
ARM: entry: avoid clobbering R9 in IRQ handler

Avoid using R9 in the IRQ handler code, as the entry code uses it for
tsk, and expects it to remain untouched between the IRQ entry and exit
code.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
arch/arm/kernel/entry-armv.S