linux-kernel - [PATCH v1 1/1] serial: 8250_pericom: Revert "Re-enable higher baud rates"

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:   Thu,  3 Feb 2022 17:00:26 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Jiri Slaby <jirislaby@...nel.org>
Subject: [PATCH v1 1/1] serial: 8250_pericom: Revert "Re-enable higher baud rates"

UPF_MAGIC_MULTIPLIER is userspace available bit and can be changed
at any time. There is no sense to rely on it to be always present.

This reverts commit b4ccaf5aa2d795ee7f47a6eeb209f3de981e1929.

Note, that code was not reliably worked before, hence it implies
no functional change.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/tty/serial/8250/8250_pericom.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_pericom.c b/drivers/tty/serial/8250/8250_pericom.c
index 025b055363c3..95ff10f25d58 100644
--- a/drivers/tty/serial/8250/8250_pericom.c
+++ b/drivers/tty/serial/8250/8250_pericom.c
@@ -117,7 +117,7 @@ static int pericom8250_probe(struct pci_dev *pdev, const struct pci_device_id *i
 	uart.port.private_data = pericom;
 	uart.port.iotype = UPIO_PORT;
 	uart.port.uartclk = 921600 * 16;
-	uart.port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ | UPF_MAGIC_MULTIPLIER;
+	uart.port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
 	uart.port.set_divisor = pericom_do_set_divisor;
 	for (i = 0; i < nr && i < maxnr; i++) {
 		unsigned int offset = (i == 3 && nr == 4) ? 0x38 : i * 0x8;
-- 
2.34.1