• Thomas Gleixner's avatar
    genirq/irqdomain: Update irq_domain_ops.activate() signature · 72491643
    Thomas Gleixner authored
    The irq_domain_ops.activate() callback has no return value and no way to
    tell the function that the activation is early.
    
    The upcoming changes to support a reservation scheme which allows to assign
    interrupt vectors on x86 only when the interrupt is actually requested
    requires:
    
      - A return value, so activation can fail at request_irq() time
      
      - Information that the activate invocation is early, i.e. before
        request_irq().
    Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
    Tested-by: default avatarJuergen Gross <jgross@suse.com>
    Tested-by: default avatarYu Chen <yu.c.chen@intel.com>
    Acked-by: default avatarJuergen Gross <jgross@suse.com>
    Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
    Cc: Tony Luck <tony.luck@intel.com>
    Cc: Marc Zyngier <marc.zyngier@arm.com>
    Cc: Alok Kataria <akataria@vmware.com>
    Cc: Joerg Roedel <joro@8bytes.org>
    Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
    Cc: Steven Rostedt <rostedt@goodmis.org>
    Cc: Christoph Hellwig <hch@lst.de>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Borislav Petkov <bp@alien8.de>
    Cc: Paolo Bonzini <pbonzini@redhat.com>
    Cc: Rui Zhang <rui.zhang@intel.com>
    Cc: "K. Y. Srinivasan" <kys@microsoft.com>
    Cc: Arjan van de Ven <arjan@linux.intel.com>
    Cc: Dan Williams <dan.j.williams@intel.com>
    Cc: Len Brown <lenb@kernel.org>
    Link: https://lkml.kernel.org/r/20170913213152.848490816@linutronix.de
    72491643
msi.c 11.2 KB