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xen/arm: Simplify type handling for SMCCC declarations
There's no use creating a typed copy of a macro argument, simply to use it to create a second typed copy. Remove the indirection, halving the number of local variables created in scope. No functional change. Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Reviewed-by: Michal Orzel <michal.orzel@amd.com>
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Andrew Cooper committed
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1 file changed
+7
-14
@@ -113,39 +113,32 @@ struct arm_smccc_res {
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register unsigned long arg0 ASM_REG(0) = (uint32_t)(a0)
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#define __declare_arg_1(a0, a1, res) \
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typeof(a1) __a1 = (a1); \
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__declare_arg_0(a0, res); \
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register typeof(a1) arg1 ASM_REG(1) = __a1
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register typeof(a1) arg1 ASM_REG(1) = (a1)
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#define __declare_arg_2(a0, a1, a2, res) \
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typeof(a2) __a2 = (a2); \
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__declare_arg_1(a0, a1, res); \
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register typeof(a2) arg2 ASM_REG(2) = __a2
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register typeof(a2) arg2 ASM_REG(2) = (a2)
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#define __declare_arg_3(a0, a1, a2, a3, res) \
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typeof(a3) __a3 = (a3); \
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__declare_arg_2(a0, a1, a2, res); \
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register typeof(a3) arg3 ASM_REG(3) = __a3
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register typeof(a3) arg3 ASM_REG(3) = (a3)
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#define __declare_arg_4(a0, a1, a2, a3, a4, res) \
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typeof(a4) __a4 = (a4); \
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__declare_arg_3(a0, a1, a2, a3, res); \
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register typeof(a4) arg4 ASM_REG(4) = __a4
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register typeof(a4) arg4 ASM_REG(4) = (a4)
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#define __declare_arg_5(a0, a1, a2, a3, a4, a5, res) \
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typeof(a5) __a5 = (a5); \
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__declare_arg_4(a0, a1, a2, a3, a4, res); \
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register typeof(a5) arg5 ASM_REG(5) = __a5
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register typeof(a5) arg5 ASM_REG(5) = (a5)
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#define __declare_arg_6(a0, a1, a2, a3, a4, a5, a6, res) \
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typeof(a6) __a6 = (a6); \
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__declare_arg_5(a0, a1, a2, a3, a4, a5, res); \
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register typeof(a6) arg6 ASM_REG(6) = __a6
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register typeof(a6) arg6 ASM_REG(6) = (a6)
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#define __declare_arg_7(a0, a1, a2, a3, a4, a5, a6, a7, res) \
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typeof(a7) __a7 = (a7); \
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__declare_arg_6(a0, a1, a2, a3, a4, a5, a6, res); \
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register typeof(a7) arg7 ASM_REG(7) = __a7
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register typeof(a7) arg7 ASM_REG(7) = (a7)
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#define ___declare_args(count, ...) __declare_arg_ ## count(__VA_ARGS__)
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#define __declare_args(count, ...) ___declare_args(count, __VA_ARGS__)
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