From 3063da91ca569ccafd6d07cd877d6d3588b2c85a Mon Sep 17 00:00:00 2001
From: Michael Straube <straube.linux@gmail.com>
Date: Sat, 18 Jan 2020 20:53:05 +0100
Subject: [PATCH] staging: rtl8712: simplify evm_db2percentage()
Git-commit: 3063da91ca569ccafd6d07cd877d6d3588b2c85a
Patch-mainline: v5.6-rc1
References: jsc#SLE-13430
Use clamp() to simplify function evm_db2percentage() and reduce object
file size.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20200118195305.16685-3-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/staging/rtl8712/rtl8712_recv.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/drivers/staging/rtl8712/rtl8712_recv.c b/drivers/staging/rtl8712/rtl8712_recv.c
index 00ea0beb12c9..116773943a2e 100644
--- a/drivers/staging/rtl8712/rtl8712_recv.c
+++ b/drivers/staging/rtl8712/rtl8712_recv.c
@@ -663,17 +663,11 @@ static u8 evm_db2percentage(s8 value)
/*
* -33dB~0dB to 0%~99%
*/
- s8 ret_val;
+ s8 ret_val = clamp(-value, 0, 33) * 3;
- ret_val = value;
- if (ret_val >= 0)
- ret_val = 0;
- if (ret_val <= -33)
- ret_val = -33;
- ret_val = -ret_val;
- ret_val *= 3;
if (ret_val == 99)
ret_val = 100;
+
return ret_val;
}
--
2.16.4