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    Subject[PATCH 7/7] x86: use for_each_clear_bit_from
    Date
    Use for_each_clear_bit() to iterate over all the cleared bit in a
    memory region.

    Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: "H. Peter Anvin" <hpa@zytor.com>
    Cc: x86@kernel.org
    ---
    arch/x86/kernel/irqinit.c | 6 +++---
    1 files changed, 3 insertions(+), 3 deletions(-)

    diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c
    index 313fb5c..43e2b1c 100644
    --- a/arch/x86/kernel/irqinit.c
    +++ b/arch/x86/kernel/irqinit.c
    @@ -306,10 +306,10 @@ void __init native_init_IRQ(void)
    * us. (some of these will be overridden and become
    * 'special' SMP interrupts)
    */
    - for (i = FIRST_EXTERNAL_VECTOR; i < NR_VECTORS; i++) {
    + i = FIRST_EXTERNAL_VECTOR;
    + for_each_clear_bit_from(i, used_vectors, NR_VECTORS) {
    /* IA32_SYSCALL_VECTOR could be used in trap_init already. */
    - if (!test_bit(i, used_vectors))
    - set_intr_gate(i, interrupt[i-FIRST_EXTERNAL_VECTOR]);
    + set_intr_gate(i, interrupt[i - FIRST_EXTERNAL_VECTOR]);
    }

    if (!acpi_ioapic && !of_ioapic)
    --
    1.7.4.4


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