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Subject[PATCH 1/3] staging: rtl8188eu: simplify odm_evm_db_to_percentage()
Date
Use clamp() to simplify code in odm_evm_db_to_percentage().

Signed-off-by: Michael Straube <straube.linux@gmail.com>
---
drivers/staging/rtl8188eu/hal/odm_hwconfig.c | 13 ++-----------
1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/rtl8188eu/hal/odm_hwconfig.c b/drivers/staging/rtl8188eu/hal/odm_hwconfig.c
index 82d6b2e18b29..0c034b19d3dd 100644
--- a/drivers/staging/rtl8188eu/hal/odm_hwconfig.c
+++ b/drivers/staging/rtl8188eu/hal/odm_hwconfig.c
@@ -53,20 +53,11 @@ static s32 odm_signal_scale_mapping(struct odm_dm_struct *dm_odm, s32 currsig)
static u8 odm_evm_db_to_percentage(s8 value)
{
/* -33dB~0dB to 0%~99% */
- s8 ret_val;
-
- ret_val = value;
-
- if (ret_val >= 0)
- ret_val = 0;
- if (ret_val <= -33)
- ret_val = -33;
-
- ret_val = 0 - ret_val;
- ret_val *= 3;
+ s8 ret_val = clamp(-value, 0, 33) * 3;

if (ret_val == 99)
ret_val = 100;
+
return ret_val;
}

--
2.19.1
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