On Tue, Mar 21, 2017 at 11:43 PM, Julia Cartwright <[email protected]> wrote:
> The pci-idio-16 gpio driver currently implements an irq_chip for handling > interrupts; due to how irq_chip handling is done, it's necessary for the > irq_chip methods to be invoked from hardirq context, even on a a > real-time kernel. Because the spinlock_t type becomes a "sleeping" > spinlock w/ RT kernels, it is not suitable to be used with irq_chips. > > A quick audit of the operations under the lock reveal that they do only > minimal, bounded work, and are therefore safe to do under a raw spinlock. > > Signed-off-by: Julia Cartwright <[email protected]> > --- > New patch as of v2 of series. Patch applied with William's ACK. Yours, Linus Walleij
