From: Nicolas Boullis <nboul...@debian.org>

The current code assumes that CSIZE is 0000060, which appears to be 
wrong on some arches (such as powerpc).

Signed-off-by: Nicolas Boullis <nboul...@debian.org>
Acked-by: Oliver Neukum <oneu...@suse.de>
---
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 981f213..194fa8b 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -817,10 +817,6 @@ static const __u32 acm_tty_speed[] = {
        2500000, 3000000, 3500000, 4000000
 };
 
-static const __u8 acm_tty_size[] = {
-       5, 6, 7, 8
-};
-
 static void acm_tty_set_termios(struct tty_struct *tty,
                                                struct ktermios *termios_old)
 {
@@ -834,7 +830,21 @@ static void acm_tty_set_termios(struct tty_struct *tty,
        newline.bParityType = termios->c_cflag & PARENB ?
                                (termios->c_cflag & PARODD ? 1 : 2) +
                                (termios->c_cflag & CMSPAR ? 2 : 0) : 0;
-       newline.bDataBits = acm_tty_size[(termios->c_cflag & CSIZE) >> 4];
+       switch (termios->c_cflag & CSIZE) {
+       case CS5:
+               newline.bDataBits = 5;
+               break;
+       case CS6:
+               newline.bDataBits = 6;
+               break;
+       case CS7:
+               newline.bDataBits = 7;
+               break;
+       case CS8:
+       default:
+               newline.bDataBits = 8;
+               break;
+       }
        /* FIXME: Needs to clear unsupported bits in the termios */
        acm->clocal = ((termios->c_cflag & CLOCAL) != 0);
 

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