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authorDavid Francis <David.Francis@amd.com>2018-05-24 10:40:12 -0400
committerAlex Deucher <alexander.deucher@amd.com>2018-05-24 10:07:56 -0500
commitb8f3439fa5358ac84d29fa2f4afa115500dec74c (patch)
tree921d7433eb3c3b39f4ca56e4445eeb26f0e78e23 /drivers/gpu/drm/amd/display
parentf9fb22a21b380b14f70048fe719875e3523ac7d8 (diff)
drm/amd/display: Remove use of division operator for long longs
In fixed31_32.h, in dc_fixpt_shl,'/' was used for division of one long long int by another long long int. As there is no inbuilt long long int division function in c, gcc inserted its own. However, gcc does not link the library that contains this function. To avoid this, use bitwise operators instead of / Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: David Francis <David.Francis@amd.com> Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display')
-rw-r--r--drivers/gpu/drm/amd/display/include/fixed31_32.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/include/fixed31_32.h b/drivers/gpu/drm/amd/display/include/fixed31_32.h
index 76f64e910422..bb0d4ebba9f0 100644
--- a/drivers/gpu/drm/amd/display/include/fixed31_32.h
+++ b/drivers/gpu/drm/amd/display/include/fixed31_32.h
@@ -209,7 +209,7 @@ static inline struct fixed31_32 dc_fixpt_clamp(
static inline struct fixed31_32 dc_fixpt_shl(struct fixed31_32 arg, unsigned char shift)
{
ASSERT(((arg.value >= 0) && (arg.value <= LLONG_MAX >> shift)) ||
- ((arg.value < 0) && (arg.value >= (LLONG_MIN / (1LL << shift)))));
+ ((arg.value < 0) && (arg.value >= ~(LLONG_MAX >> shift))));
arg.value = arg.value << shift;