linux-kernel - [PATCH] staging: rtl8723bs: core: Remove variable priority

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Date:   Fri,  7 Jun 2019 12:48:01 +0530
From:   Nishka Dasgupta <nishkadg.linux@...il.com>
To:     gregkh@...uxfoundation.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org, colin.king@...onical.com,
        hdegoede@...hat.com, straube.linux@...il.com, julia.lawall@...6.fr,
        hardiksingh.k@...il.com, pakki001@....edu,
        hariprasad.kelam@...il.com, arnd@...db.de
Cc:     Nishka Dasgupta <nishkadg.linux@...il.com>
Subject: [PATCH] staging: rtl8723bs: core: Remove variable priority

Remove local variable change_priority, as it takes the value of the
argument priority; as both of these variables are of type u8, priority
can be modified without changing the value of its copy at the call site.
Issue found with Coccinelle.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@...il.com>
---
 drivers/staging/rtl8723bs/core/rtw_xmit.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/rtl8723bs/core/rtw_xmit.c b/drivers/staging/rtl8723bs/core/rtw_xmit.c
index 53146ec62ae9..b5dcb78fb4f4 100644
--- a/drivers/staging/rtl8723bs/core/rtw_xmit.c
+++ b/drivers/staging/rtl8723bs/core/rtw_xmit.c
@@ -625,13 +625,11 @@ static s32 update_attrib_sec_info(struct adapter *padapter, struct pkt_attrib *p
 
 u8 qos_acm(u8 acm_mask, u8 priority)
 {
-	u8 change_priority = priority;
-
 	switch (priority) {
 	case 0:
 	case 3:
 		if (acm_mask & BIT(1))
-			change_priority = 1;
+			priority = 1;
 		break;
 	case 1:
 	case 2:
@@ -639,19 +637,19 @@ u8 qos_acm(u8 acm_mask, u8 priority)
 	case 4:
 	case 5:
 		if (acm_mask & BIT(2))
-			change_priority = 0;
+			priority = 0;
 		break;
 	case 6:
 	case 7:
 		if (acm_mask & BIT(3))
-			change_priority = 5;
+			priority = 5;
 		break;
 	default:
 		DBG_871X("qos_acm(): invalid pattrib->priority: %d!!!\n", priority);
 		break;
 	}
 
-	return change_priority;
+	return priority;
 }
 
 static void set_qos(struct pkt_file *ppktfile, struct pkt_attrib *pattrib)
-- 
2.19.1