linux-kernel - [PATCH 04/17] usb: host: ehci-dbg: move trailing statements to next line

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Message-Id: <44fe2b5cd0ce32e5e175bf9c6a6a07de21a262dd.1451937845.git.geyslan@gmail.com>
Date:	Mon,  4 Jan 2016 17:09:49 -0300
From:	"Geyslan G. Bem" <geyslan@...il.com>
To:	unlisted-recipients:; (no To-header on input)
Cc:	"Geyslan G. Bem" <geyslan@...il.com>, linux-kernel@...r.kernel.org,
	Alan Stern <stern@...land.harvard.edu>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-usb@...r.kernel.org
Subject: [PATCH 04/17] usb: host: ehci-dbg: move trailing statements to next line

This patch fixes coding style issues reported by checkpatch concerning
to switch case statements. There are few additional changes made to fix
other coding styles issues.

These additional changes are:

 - The compound statement "({...})" on line 474 is pulled out from
   snprintf parameters.

 - On line 723 the constant "0x03" is moved to right.

Signed-off-by: Geyslan G. Bem <geyslan@...il.com>
---

Notes:
    Before this patch there are 14 warnings about trailing statements that
    should be on next line. After there are still 4. These lines concern to
    a macro that will be modified to inline function in sequential patches.
    
    Tested by compilation only.

 drivers/usb/host/ehci-dbg.c | 54 +++++++++++++++++++++++++++++++--------------
 1 file changed, 38 insertions(+), 16 deletions(-)

diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
index df9f598..c409e4f 100644
--- a/drivers/usb/host/ehci-dbg.c
+++ b/drivers/usb/host/ehci-dbg.c
@@ -243,10 +243,18 @@ dbg_port_buf(char *buf, unsigned len, const char *label, int port, u32 status)
 
 	/* signaling state */
 	switch (status & (3 << 10)) {
-	case 0 << 10: sig = "se0"; break;
-	case 1 << 10: sig = "k"; break;		/* low speed */
-	case 2 << 10: sig = "j"; break;
-	default: sig = "?"; break;
+	case 0 << 10:
+		sig = "se0";
+		break;
+	case 1 << 10: /* low speed */
+		sig = "k";
+		break;
+	case 2 << 10:
+		sig = "j";
+		break;
+	default:
+		sig = "?";
+		break;
 	}
 
 	return scnprintf(buf, len,
@@ -451,6 +459,8 @@ static void qh_lines(
 
 	/* hc may be modifying the list as we read it ... */
 	list_for_each(entry, &qh->qtd_list) {
+		char *type;
+
 		td = list_entry(entry, struct ehci_qtd, qtd_list);
 		scratch = hc32_to_cpup(ehci, &td->hw_token);
 		mark = ' ';
@@ -464,16 +474,24 @@ static void qh_lines(
 			else if (td->hw_alt_next != list_end)
 				mark = '/';
 		}
+		switch ((scratch >> 8) & 0x03) {
+		case 0:
+			type = "out";
+			break;
+		case 1:
+			type = "in";
+			break;
+		case 2:
+			type = "setup";
+			break;
+		default:
+			type = "?";
+			break;
+		}
 		temp = snprintf(next, size,
 				"\n\t%p%c%s len=%d %08x urb %p"
 				" [td %08x buf[0] %08x]",
-				td, mark, ({ char *tmp;
-				 switch ((scratch>>8)&0x03) {
-				 case 0: tmp = "out"; break;
-				 case 1: tmp = "in"; break;
-				 case 2: tmp = "setup"; break;
-				 default: tmp = "?"; break;
-				 } tmp;}),
+				td, mark, type,
 				(scratch >> 16) & 0x7fff,
 				scratch,
 				td->urb,
@@ -702,11 +720,15 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
 							&p.qh->qtd_list,
 							qtd_list) {
 						temp++;
-						switch (0x03 & (hc32_to_cpu(
-							ehci,
-							qtd->hw_token) >> 8)) {
-						case 0: type = "out"; continue;
-						case 1: type = "in"; continue;
+						switch ((hc32_to_cpu(ehci,
+							qtd->hw_token) >> 8)
+								& 0x03) {
+						case 0:
+							type = "out";
+							continue;
+						case 1:
+							type = "in";
+							continue;
 						}
 					}
 
-- 
2.6.4

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