• Krzysztof Hałasa's avatar
    CNS3xxx: Fix a WARN() related to IRQ allocation. · 75efba81
    Krzysztof Hałasa authored
    WARNING: at drivers/irqchip/irq-gic.c:952 gic_init_bases+0xe4/0x2b8()
    Cannot allocate irq_descs @ IRQ16, assuming pre-allocated
    Backtrace:
    gic_init_bases    from cns3xxx_init_irq+0x24/0x34
    cns3xxx_init_irq  from init_IRQ+0x24/0x2c
    init_IRQ          from start_kernel+0x1a8/0x338
    start_kernel      from 0x2000806c
    
    The problem is that 64 CNS3xxx CPU interrupts, starting at 32, are
    allocated by the ARM platform-independent code (as requested by
    machine_desc->nr_irqs = 96), and then the GIC code tries to allocate
    them again.
    
    Tested on Gateworks Laguna board, masqueraded as CNS3420VB.
    Signed-off-by: default avatarKrzysztof Hałasa <khalasa@piap.pl>
    Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
    75efba81
core.c 9.95 KB