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Message-ID: <20231014104942.856152-4-vamshigajjela@google.com>
Date: Sat, 14 Oct 2023 16:19:42 +0530
From: Vamshi Gajjela <vamshigajjela@...gle.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Jiri Slaby <jirislaby@...nel.org>,
ilpo.jarvinen@...ux.intel.com
Cc: linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
manugautam@...gle.com, Subhash Jadavani <sjadavani@...gle.com>,
Channa Kadabi <kadabi@...gle.com>,
VAMSHI GAJJELA <vamshigajjela@...gle.com>
Subject: [PATCH 3/3] serial: core: Update uart_poll_timeout function to return
unsigned int
From: VAMSHI GAJJELA <vamshigajjela@...gle.com>
uart_fifo_timeout() returns unsigned value, hence the function
uart_poll_timeout has been modified to use an unsigned int type for
timeout values instead of a signed int. The return type of the function
has been changed from int to unsigned int for consistency with the type
of timeout values. The result of uart_fifo_timeout() is cast to u32,
indicating that the value is truncated.
Signed-off-by: VAMSHI GAJJELA <vamshigajjela@...gle.com>
---
include/linux/serial_core.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index b128513b009a..445a1ff7e502 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -773,9 +773,9 @@ static inline unsigned long uart_fifo_timeout(struct uart_port *port)
}
/* Base timer interval for polling */
-static inline int uart_poll_timeout(struct uart_port *port)
+static inline unsigned int uart_poll_timeout(struct uart_port *port)
{
- int timeout = uart_fifo_timeout(port);
+ unsigned int timeout = (u32)uart_fifo_timeout(port);
return timeout > 6 ? (timeout / 2 - 2) : 1;
}
--
2.42.0.655.g421f12c284-goog
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