linux-kernel - [PATCH v2 4/5] serial: sunsab: Remove frame size calculation dead-code

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Message-Id: <20220830084925.5608-5-ilpo.jarvinen@linux.intel.com>
Date:   Tue, 30 Aug 2022 11:49:24 +0300
From:   Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        linux-serial@...r.kernel.org,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        "David S. Miller" <davem@...emloft.net>,
        sparclinux@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>
Subject: [PATCH v2 4/5] serial: sunsab: Remove frame size calculation dead-code

The driver features a custom frame length calculation but the result is
never used. Remove it.

Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
---
 drivers/tty/serial/sunsab.c | 20 ++++++++------------
 1 file changed, 8 insertions(+), 12 deletions(-)

diff --git a/drivers/tty/serial/sunsab.c b/drivers/tty/serial/sunsab.c
index 6ea52293d9f3..f7968f73753d 100644
--- a/drivers/tty/serial/sunsab.c
+++ b/drivers/tty/serial/sunsab.c
@@ -681,27 +681,23 @@ static void sunsab_convert_to_sab(struct uart_sunsab_port *up, unsigned int cfla
 				  unsigned int quot)
 {
 	unsigned char dafo;
-	int bits, n, m;
+	int n, m;
 
 	/* Byte size and parity */
 	switch (cflag & CSIZE) {
-	      case CS5: dafo = SAB82532_DAFO_CHL5; bits = 7; break;
-	      case CS6: dafo = SAB82532_DAFO_CHL6; bits = 8; break;
-	      case CS7: dafo = SAB82532_DAFO_CHL7; bits = 9; break;
-	      case CS8: dafo = SAB82532_DAFO_CHL8; bits = 10; break;
+	      case CS5: dafo = SAB82532_DAFO_CHL5; break;
+	      case CS6: dafo = SAB82532_DAFO_CHL6; break;
+	      case CS7: dafo = SAB82532_DAFO_CHL7; break;
+	      case CS8: dafo = SAB82532_DAFO_CHL8; break;
 	      /* Never happens, but GCC is too dumb to figure it out */
-	      default:  dafo = SAB82532_DAFO_CHL5; bits = 7; break;
+	      default:  dafo = SAB82532_DAFO_CHL5; break;
 	}
 
-	if (cflag & CSTOPB) {
+	if (cflag & CSTOPB)
 		dafo |= SAB82532_DAFO_STOP;
-		bits++;
-	}
 
-	if (cflag & PARENB) {
+	if (cflag & PARENB)
 		dafo |= SAB82532_DAFO_PARE;
-		bits++;
-	}
 
 	if (cflag & PARODD) {
 		dafo |= SAB82532_DAFO_PAR_ODD;
-- 
2.30.2