• Tejun Heo's avatar
    percpu: Add __percpu sparse annotations to hw_breakpoint · 44ee6358
    Tejun Heo authored
    Add __percpu sparse annotations to hw_breakpoint.
    
    These annotations are to make sparse consider percpu variables to be
    in a different address space and warn if accessed without going
    through percpu accessors.  This patch doesn't affect normal builds.
    
    In kernel/hw_breakpoint.c, per_cpu(nr_task_bp_pinned, cpu)'s will
    trigger spurious noderef related warnings from sparse.  Changing it to
    &per_cpu(nr_task_bp_pinned[0], cpu) will work around the problem but
    deemed to ugly by the maintainer.  Leave it alone until better
    solution can be found.
    Signed-off-by: default avatarTejun Heo <tj@kernel.org>
    Cc: Stephen Rothwell <sfr@canb.auug.org.au>
    Cc: K.Prasad <prasad@linux.vnet.ibm.com>
    LKML-Reference: <4B7B4B7A.9050902@kernel.org>
    Signed-off-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
    44ee6358
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