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authorMichael Walle <michael@walle.cc>2021-05-12 16:12:48 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-05-13 16:08:26 +0200
commitec22c3eec5439fb012a41d49b015c13ca9b91b6c (patch)
tree198a5af482d68f35a4d7d936a98f5896d610f718
parentserial: fsl_lpuart: don't modify arbitrary data on lpuart32 (diff)
downloadlinux-dev-ec22c3eec5439fb012a41d49b015c13ca9b91b6c.tar.xz
linux-dev-ec22c3eec5439fb012a41d49b015c13ca9b91b6c.zip
serial: fsl_lpuart: use UARTDATA_MASK macro
Use the corresponding macro instead of the magic number. While at it, drop the useless cast to "unsigned char". Signed-off-by: Michael Walle <michael@walle.cc> Link: https://lore.kernel.org/r/20210512141255.18277-3-michael@walle.cc Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/tty/serial/fsl_lpuart.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 120527cb8a81..cabfc1c5d701 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -928,9 +928,9 @@ static void lpuart32_rxint(struct lpuart_port *sport)
*/
sr = lpuart32_read(&sport->port, UARTSTAT);
rx = lpuart32_read(&sport->port, UARTDATA);
- rx &= 0x3ff;
+ rx &= UARTDATA_MASK;
- if (uart_handle_sysrq_char(&sport->port, (unsigned char)rx))
+ if (uart_handle_sysrq_char(&sport->port, rx))
continue;
if (sr & (UARTSTAT_PE | UARTSTAT_OR | UARTSTAT_FE)) {