This is a note to let you know that I've just added the patch titled

Revert "serial: uartps: Fix uartps_major handling"

to my tty git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git in the tty-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From 2e01911b7cf7aa07a304a809eca1b11a4bd35859 Mon Sep 17 00:00:00 2001

From: Michal Simek michal.simek@xilinx.com Date: Fri, 3 Apr 2020 11:24:30 +0200 Subject: Revert "serial: uartps: Fix uartps_major handling"

This reverts commit 5e9bd2d70ae7c00a95a22994abf1eef728649e64.

As Johan says, this driver needs a lot more work and these changes are only going in the wrong direction: https://lkml.kernel.org/r/20190523091839.GC568@localhost

Reported-by: Johan Hovold johan@kernel.org Signed-off-by: Michal Simek michal.simek@xilinx.com Cc: stable stable@vger.kernel.org Link: https://lore.kernel.org/r/310999ab5342f788a7bc1b0e68294d4f052cad07.158590587... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/tty/serial/xilinx_uartps.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c index 6b26f767768e..b858fb14833d 100644 --- a/drivers/tty/serial/xilinx_uartps.c +++ b/drivers/tty/serial/xilinx_uartps.c @@ -1564,6 +1564,7 @@ static int cdns_uart_probe(struct platform_device *pdev) goto err_out_id; }

+ uartps_major = cdns_uart_uart_driver->tty_driver->major; cdns_uart_data->cdns_uart_driver = cdns_uart_uart_driver;

/* @@ -1694,7 +1695,6 @@ static int cdns_uart_probe(struct platform_device *pdev) console_port = NULL; #endif

- uartps_major = cdns_uart_uart_driver->tty_driver->major; cdns_uart_data->cts_override = of_property_read_bool(pdev->dev.of_node, "cts-override"); return 0; @@ -1756,12 +1756,6 @@ static int cdns_uart_remove(struct platform_device *pdev) console_port = NULL; #endif

- /* If this is last instance major number should be initialized */ - mutex_lock(&bitmap_lock); - if (bitmap_empty(bitmap, MAX_UART_INSTANCES)) - uartps_major = 0; - mutex_unlock(&bitmap_lock); - uart_unregister_driver(cdns_uart_data->cdns_uart_driver); return rc; }