linux-kernel - [PATCH 10/30] usb: dwc2: gadget: Remove assigned but never used 'maxsize'

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Date:   Thu,  2 Jul 2020 15:46:05 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     gregkh@...uxfoundation.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, Lee Jones <lee.jones@...aro.org>,
        Minas Harutyunyan <hminas@...opsys.com>,
        Ben Dooks <ben@...tec.co.uk>
Subject: [PATCH 10/30] usb: dwc2: gadget: Remove assigned but never used 'maxsize'

The value of 'maxsize' has not been checked since commit 729cac693eecf
("usb: dwc2: Change ISOC DDMA flow") back in 2018, so remove the set but
unused variable, which fixes the following W=1 kernel build warning:

 drivers/usb/dwc2/gadget.c: In function ‘dwc2_gadget_fill_isoc_desc’:
 drivers/usb/dwc2/gadget.c:885:6: warning: variable ‘maxsize’ set but not used [-Wunused-but-set-variable]
 885 | u32 maxsize = 0;
 | ^~~~~~~

Cc: Minas Harutyunyan <hminas@...opsys.com>
Cc: Ben Dooks <ben@...tec.co.uk>
Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 drivers/usb/dwc2/gadget.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 14c422ee6a069..116e6175c7a48 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -880,11 +880,10 @@ static int dwc2_gadget_fill_isoc_desc(struct dwc2_hsotg_ep *hs_ep,
 	struct dwc2_dma_desc *desc;
 	struct dwc2_hsotg *hsotg = hs_ep->parent;
 	u32 index;
-	u32 maxsize = 0;
 	u32 mask = 0;
 	u8 pid = 0;
 
-	maxsize = dwc2_gadget_get_desc_params(hs_ep, &mask);
+	dwc2_gadget_get_desc_params(hs_ep, &mask);
 
 	index = hs_ep->next_desc;
 	desc = &hs_ep->desc_list[index];
-- 
2.25.1