[PATCH v3 07/18] serial: core: Make uart_parse_options take const char* argument
From: Paul Cercueil <paul@crapouillou.net>
Date: 2017-07-02 16:33:06
Also in:
linux-clk, linux-mips, lkml
Subsystem:
the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
The pointed string is never modified from within uart_parse_options, so it should be marked as const in the function prototype. Signed-off-by: Paul Cercueil <paul@crapouillou.net> --- drivers/tty/serial/serial_core.c | 5 +++-- include/linux/serial_core.h | 2 +- 2 files changed, 4 insertions(+), 3 deletions(-) v2: New patch in this series v3: No change
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 13bfd5dcffce..95d3770bdb37 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c@@ -1954,9 +1954,10 @@ EXPORT_SYMBOL_GPL(uart_parse_earlycon); * eg: 115200n8r */ void -uart_parse_options(char *options, int *baud, int *parity, int *bits, int *flow) +uart_parse_options(const char *options, int *baud, int *parity, + int *bits, int *flow) { - char *s = options; + const char *s = options; *baud = simple_strtoul(s, NULL, 10); while (*s >= '0' && *s <= '9')
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 64d892f1e5cd..67f88fb53195 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h@@ -386,7 +386,7 @@ struct uart_port *uart_get_console(struct uart_port *ports, int nr, struct console *c); int uart_parse_earlycon(char *p, unsigned char *iotype, resource_size_t *addr, char **options); -void uart_parse_options(char *options, int *baud, int *parity, int *bits, +void uart_parse_options(const char *options, int *baud, int *parity, int *bits, int *flow); int uart_set_options(struct uart_port *port, struct console *co, int baud, int parity, int bits, int flow);
--
2.11.0