serial: core: Fix iotype userspace breakage
authorPeter Hurley <peter@hurleysoftware.com>
Sun, 1 Mar 2015 15:18:16 +0000 (10:18 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 7 Mar 2015 02:39:55 +0000 (03:39 +0100)
commit 3ffb1a8193bea ("serial: core: Add big-endian iotype")
re-numbered userspace-dependent values; ioctl(TIOCSSERIAL) can
assign the port iotype (which is expected to match the selected
i/o accessors), so iotype values must not be changed.

Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: <stable@vger.kernel.org> # 3.19+
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Reviewed-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
include/linux/serial_core.h

index baf3e1d08416faaf34edd51bca72c2801e7e7e06..1094f2d9cadbe9a97a168308a0e8a8246b9bacef 100644 (file)
@@ -147,9 +147,9 @@ struct uart_port {
 #define UPIO_HUB6              (1)                     /* Hub6 ISA card */
 #define UPIO_MEM               (2)                     /* 8b MMIO access */
 #define UPIO_MEM32             (3)                     /* 32b little endian */
-#define UPIO_MEM32BE           (4)                     /* 32b big endian */
-#define UPIO_AU                        (5)                     /* Au1x00 and RT288x type IO */
-#define UPIO_TSI               (6)                     /* Tsi108/109 type IO */
+#define UPIO_AU                        (4)                     /* Au1x00 and RT288x type IO */
+#define UPIO_TSI               (5)                     /* Tsi108/109 type IO */
+#define UPIO_MEM32BE           (6)                     /* 32b big endian */
 
        unsigned int            read_status_mask;       /* driver specific */
        unsigned int            ignore_status_mask;     /* driver specific */