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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-04-26 15:29:44 +0100 |
|---|---|---|
| committer | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-04-26 15:29:44 +0100 |
| commit | 45849282bfd7543253761cbf7db96151b05e5ed1 (patch) | |
| tree | 1e02a8874f487041795f27427d2ee22e8c236c8c /drivers/serial/amba-pl011.c | |
| parent | b453257f057b834fdf9f4a6ad6133598b79bd982 (diff) | |
| download | op-kernel-dev-45849282bfd7543253761cbf7db96151b05e5ed1.zip op-kernel-dev-45849282bfd7543253761cbf7db96151b05e5ed1.tar.gz | |
[PATCH] Serial: Ensure error paths are marked with unlikely()
Ensure ARM serial driver error paths are marked with the
unlikely() compiler hint.
Signed-off-by: Russell King <rmk@arm.linux.org.uk>
Diffstat (limited to 'drivers/serial/amba-pl011.c')
| -rw-r--r-- | drivers/serial/amba-pl011.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/serial/amba-pl011.c b/drivers/serial/amba-pl011.c index ff658a8..d5cbef3 100644 --- a/drivers/serial/amba-pl011.c +++ b/drivers/serial/amba-pl011.c @@ -137,7 +137,7 @@ pl011_rx_chars(struct uart_amba_port *uap) * out of the main execution path */ rsr = readw(uap->port.membase + UART01x_RSR) | UART_DUMMY_RSR_RX; - if (rsr & UART01x_RSR_ANY) { + if (unlikely(rsr & UART01x_RSR_ANY)) { if (rsr & UART01x_RSR_BE) { rsr &= ~(UART01x_RSR_FE | UART01x_RSR_PE); uap->port.icount.brk++; |
