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authorLinus Torvalds <torvalds@linux-foundation.org>2017-07-03 20:04:16 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-03 20:04:16 -0700
commit9a715cd54347948e74f1a597da22884af287727d (patch)
tree0a824e6501e9a8dcb3fdd05749e13c149e7dfb9f /drivers/tty/cyclades.c
parentcbcd4f08aa637b74f575268770da86a00fabde6d (diff)
parenta6d7514b14a6ea2a3868bdcb2fca7b2410738595 (diff)
Merge tag 'tty-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial updates from Greg KH: "Here is the large tty/serial patchset for 4.13-rc1. A lot of tty and serial driver updates are in here, along with some fixups for some __get/put_user usages that were reported. Nothing huge, just lots of development by a number of different developers, full details in the shortlog. All of these have been in linux-next for a while" * tag 'tty-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (71 commits) tty: serial: lpuart: add a more accurate baud rate calculation method tty: serial: lpuart: add earlycon support for imx7ulp tty: serial: lpuart: add imx7ulp support dt-bindings: serial: fsl-lpuart: add i.MX7ULP support tty: serial: lpuart: add little endian 32 bit register support tty: serial: lpuart: refactor lpuart32_{read|write} prototype tty: serial: lpuart: introduce lpuart_soc_data to represent SoC property serial: imx-serial - move DMA buffer configuration to DT serial: imx: Enable RTSD only when needed serial: imx: Remove unused members from imx_port struct serial: 8250: 8250_omap: Fix race b/w dma completion and RX timeout serial: 8250: Fix THRE flag usage for CAP_MINI tty/serial: meson_uart: update to stable bindings dt-bindings: serial: Add bindings for the Amlogic Meson UARTs serial: Delete dead code for CIR serial ports serial: sirf: make of_device_ids const serial/mpsc: switch to dma_alloc_attrs tty: serial: Add Actions Semi Owl UART earlycon dt-bindings: serial: Document Actions Semi Owl UARTs tty/serial: atmel: make the driver DT only ...
Diffstat (limited to 'drivers/tty/cyclades.c')
-rw-r--r--drivers/tty/cyclades.c21
1 files changed, 9 insertions, 12 deletions
diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c
index 104f09c58163..d272bc4e7fb5 100644
--- a/drivers/tty/cyclades.c
+++ b/drivers/tty/cyclades.c
@@ -1975,18 +1975,6 @@ static void cy_set_line_char(struct cyclades_port *info, struct tty_struct *tty)
cflag = tty->termios.c_cflag;
iflag = tty->termios.c_iflag;
- /*
- * Set up the tty->alt_speed kludge
- */
- if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- tty->alt_speed = 57600;
- if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- tty->alt_speed = 115200;
- if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
- tty->alt_speed = 230400;
- if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
- tty->alt_speed = 460800;
-
card = info->card;
channel = info->line - card->first_line;
@@ -2295,12 +2283,16 @@ cy_set_serial_info(struct cyclades_port *info, struct tty_struct *tty,
struct serial_struct __user *new_info)
{
struct serial_struct new_serial;
+ int old_flags;
int ret;
if (copy_from_user(&new_serial, new_info, sizeof(new_serial)))
return -EFAULT;
mutex_lock(&info->port.mutex);
+
+ old_flags = info->port.flags;
+
if (!capable(CAP_SYS_ADMIN)) {
if (new_serial.close_delay != info->port.close_delay ||
new_serial.baud_base != info->baud ||
@@ -2332,6 +2324,11 @@ cy_set_serial_info(struct cyclades_port *info, struct tty_struct *tty,
check_and_exit:
if (tty_port_initialized(&info->port)) {
+ if ((new_serial.flags ^ old_flags) & ASYNC_SPD_MASK) {
+ /* warn about deprecation unless clearing */
+ if (new_serial.flags & ASYNC_SPD_MASK)
+ dev_warn_ratelimited(tty->dev, "use of SPD flags is deprecated\n");
+ }
cy_set_line_char(info, tty);
ret = 0;
} else {