• Mark Rutland's avatar
    arm64: traps: simplify die() and __die() · 876e7a38
    Mark Rutland authored
    In arm64's die and __die routines we pass around a thread_info, and
    subsequently use this to determine the relevant task_struct, and the end
    of the thread's stack. Subsequent patches will decouple thread_info from
    the stack, and this approach will no longer work.
    To figure out the end of the stack, we can use the new generic
    end_of_stack() helper. As we only call __die() from die(), and die()
    always deals with the current task, we can remove the parameter and have
    both acquire current directly, which also makes it clear that __die
    can't be called for arbitrary tasks.
    Signed-off-by: default avatarMark Rutland <mark.rutland@arm.com>
    Tested-by: default avatarLaura Abbott <labbott@redhat.com>
    Cc: Will Deacon <will.deacon@arm.com>
    Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
traps.c 16.9 KB