From: Vincent Mailhol <mailhol.vincent@xxxxxxxxxx> Most of the use of __is_const_expr() in i915_reg_defs.h are just to test whether an expression is known to be true. Because those checks are all done in a BUILD_BUG_ON_ZERO(), replace those with is_const_true(). Replace the few other occurrences of __is_const_expr() with is_const(). Signed-off-by: Vincent Mailhol <mailhol.vincent@xxxxxxxxxx> --- drivers/gpu/drm/i915/i915_reg_defs.h | 47 +++++++++++++++++------------------- 1 file changed, 22 insertions(+), 25 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg_defs.h b/drivers/gpu/drm/i915/i915_reg_defs.h index e251bcc0c89f5710125bc70f07851b2cb978c89c..6ed2fb9cf506a3bd6467ba30f9d0e863d62762f3 100644 --- a/drivers/gpu/drm/i915/i915_reg_defs.h +++ b/drivers/gpu/drm/i915/i915_reg_defs.h @@ -19,8 +19,7 @@ */ #define REG_BIT(__n) \ ((u32)(BIT(__n) + \ - BUILD_BUG_ON_ZERO(__is_constexpr(__n) && \ - ((__n) < 0 || (__n) > 31)))) + BUILD_BUG_ON_ZERO(is_const_true((__n) < 0 || (__n) > 31)))) /** * REG_BIT8() - Prepare a u8 bit value @@ -32,8 +31,7 @@ */ #define REG_BIT8(__n) \ ((u8)(BIT(__n) + \ - BUILD_BUG_ON_ZERO(__is_constexpr(__n) && \ - ((__n) < 0 || (__n) > 7)))) + BUILD_BUG_ON_ZERO(is_const_true((__n) < 0 || (__n) > 7)))) /** * REG_GENMASK() - Prepare a continuous u32 bitmask @@ -46,9 +44,9 @@ */ #define REG_GENMASK(__high, __low) \ ((u32)(GENMASK(__high, __low) + \ - BUILD_BUG_ON_ZERO(__is_constexpr(__high) && \ - __is_constexpr(__low) && \ - ((__low) < 0 || (__high) > 31 || (__low) > (__high))))) + BUILD_BUG_ON_ZERO(is_const_true((__low) < 0 || \ + (__high) > 31 || \ + (__low) > (__high))))) /** * REG_GENMASK64() - Prepare a continuous u64 bitmask @@ -61,9 +59,9 @@ */ #define REG_GENMASK64(__high, __low) \ ((u64)(GENMASK_ULL(__high, __low) + \ - BUILD_BUG_ON_ZERO(__is_constexpr(__high) && \ - __is_constexpr(__low) && \ - ((__low) < 0 || (__high) > 63 || (__low) > (__high))))) + BUILD_BUG_ON_ZERO(is_const_true((__low) < 0 || \ + (__high) > 63 || \ + (__low) > (__high))))) /** * REG_GENMASK8() - Prepare a continuous u8 bitmask @@ -76,9 +74,9 @@ */ #define REG_GENMASK8(__high, __low) \ ((u8)(GENMASK(__high, __low) + \ - BUILD_BUG_ON_ZERO(__is_constexpr(__high) && \ - __is_constexpr(__low) && \ - ((__low) < 0 || (__high) > 7 || (__low) > (__high))))) + BUILD_BUG_ON_ZERO(is_const_true((__low) < 0 || \ + (__high) > 7 || \ + (__low) > (__high))))) /* * Local integer constant expression version of is_power_of_2(). @@ -97,10 +95,10 @@ */ #define REG_FIELD_PREP(__mask, __val) \ ((u32)((((typeof(__mask))(__val) << __bf_shf(__mask)) & (__mask)) + \ - BUILD_BUG_ON_ZERO(!__is_constexpr(__mask)) + \ + BUILD_BUG_ON_ZERO(!is_const(__mask)) + \ BUILD_BUG_ON_ZERO((__mask) == 0 || (__mask) > U32_MAX) + \ BUILD_BUG_ON_ZERO(!IS_POWER_OF_2((__mask) + (1ULL << __bf_shf(__mask)))) + \ - BUILD_BUG_ON_ZERO(__builtin_choose_expr(__is_constexpr(__val), (~((__mask) >> __bf_shf(__mask)) & (__val)), 0)))) + BUILD_BUG_ON_ZERO(is_const_true(~((__mask) >> __bf_shf(__mask)) & (__val))))) /** * REG_FIELD_PREP8() - Prepare a u8 bitfield value @@ -114,10 +112,10 @@ */ #define REG_FIELD_PREP8(__mask, __val) \ ((u8)((((typeof(__mask))(__val) << __bf_shf(__mask)) & (__mask)) + \ - BUILD_BUG_ON_ZERO(!__is_constexpr(__mask)) + \ + BUILD_BUG_ON_ZERO(!is_const(__mask)) + \ BUILD_BUG_ON_ZERO((__mask) == 0 || (__mask) > U8_MAX) + \ BUILD_BUG_ON_ZERO(!IS_POWER_OF_2((__mask) + (1ULL << __bf_shf(__mask)))) + \ - BUILD_BUG_ON_ZERO(__builtin_choose_expr(__is_constexpr(__val), (~((__mask) >> __bf_shf(__mask)) & (__val)), 0)))) + BUILD_BUG_ON_ZERO(is_const_true(~((__mask) >> __bf_shf(__mask)) & (__val))))) /** * REG_FIELD_GET() - Extract a u32 bitfield value @@ -154,8 +152,7 @@ */ #define REG_BIT16(__n) \ ((u16)(BIT(__n) + \ - BUILD_BUG_ON_ZERO(__is_constexpr(__n) && \ - ((__n) < 0 || (__n) > 15)))) + BUILD_BUG_ON_ZERO(is_const_true((__n) < 0 || (__n) > 15)))) /** * REG_GENMASK16() - Prepare a continuous u8 bitmask @@ -169,9 +166,9 @@ */ #define REG_GENMASK16(__high, __low) \ ((u16)(GENMASK(__high, __low) + \ - BUILD_BUG_ON_ZERO(__is_constexpr(__high) && \ - __is_constexpr(__low) && \ - ((__low) < 0 || (__high) > 15 || (__low) > (__high))))) + BUILD_BUG_ON_ZERO(is_const_true((__low) < 0 || \ + (__high) > 15 || \ + (__low) > (__high))))) /** * REG_FIELD_PREP16() - Prepare a u16 bitfield value @@ -186,10 +183,10 @@ */ #define REG_FIELD_PREP16(__mask, __val) \ ((u16)((((typeof(__mask))(__val) << __bf_shf(__mask)) & (__mask)) + \ - BUILD_BUG_ON_ZERO(!__is_constexpr(__mask)) + \ + BUILD_BUG_ON_ZERO(!is_const(__mask)) + \ BUILD_BUG_ON_ZERO((__mask) == 0 || (__mask) > U16_MAX) + \ BUILD_BUG_ON_ZERO(!IS_POWER_OF_2((__mask) + (1ULL << __bf_shf(__mask)))) + \ - BUILD_BUG_ON_ZERO(__builtin_choose_expr(__is_constexpr(__val), (~((__mask) >> __bf_shf(__mask)) & (__val)), 0)))) + BUILD_BUG_ON_ZERO(is_const_true(~((__mask) >> __bf_shf(__mask)) & (__val))))) #define __MASKED_FIELD(mask, value) ((mask) << 16 | (value)) #define _MASKED_FIELD(mask, value) ({ \ @@ -237,7 +234,7 @@ * ... */ #define _PICK_EVEN_2RANGES(__index, __c_index, __a, __b, __c, __d) \ - (BUILD_BUG_ON_ZERO(!__is_constexpr(__c_index)) + \ + (BUILD_BUG_ON_ZERO(!is_const(__c_index)) + \ ((__index) < (__c_index) ? _PICK_EVEN(__index, __a, __b) : \ _PICK_EVEN((__index) - (__c_index), __c, __d))) -- 2.45.2