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    Subject[PATCH RFC 2/4] include/linux/compiler.h: allow memory operands
    We don't really care whether the variable is in-register
    or in-memory. Relax the constraint accordingly.

    Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
    ---
    include/linux/compiler.h | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/include/linux/compiler.h b/include/linux/compiler.h
    index 1ad367b4cd8d..6601d39e8c48 100644
    --- a/include/linux/compiler.h
    +++ b/include/linux/compiler.h
    @@ -154,7 +154,7 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val,
    #ifndef OPTIMIZER_HIDE_VAR
    /* Make the optimizer believe the variable can be manipulated arbitrarily. */
    #define OPTIMIZER_HIDE_VAR(var) \
    - __asm__ ("" : "=r" (var) : "0" (var))
    + __asm__ ("" : "=rm" (var) : "0" (var))
    #endif

    /* Not-quite-unique ID. */
    --
    MST
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