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authorJiri Slaby (SUSE) <jirislaby@kernel.org>2025-06-11 13:02:54 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-06-17 14:42:34 +0300
commitfc9ceb501e38cc21066c1638993500b30eda8bdb (patch)
tree0bd2cd58c50e071680215bf2931b35795d644f59 /include
parentf1180ca37abe3d117e4a19be12142fe722612a7c (diff)
downloadlinux-fc9ceb501e38cc21066c1638993500b30eda8bdb.tar.xz
serial: 8250: sanitize uart_port::serial_{in,out}() types
uart_port::{serial_in,serial_out} (and plat_serial8250_port::* likewise) historically use: * 'unsigned int' for 32-bit register values in reads and writes, and * 'int' for offsets. Make them sane such that: * 'u32' is used for register values, and * 'unsigned int' is used for offsets. While at it, name hooks' parameters, so it is clear what is what. Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Paul Cercueil <paul@crapouillou.net> Cc: Vladimir Zapolskiy <vz@mleia.com> Cc: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20250611100319.186924-9-jirislaby@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/serial_8250.h4
-rw-r--r--include/linux/serial_core.h4
2 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
index 144de7a7948d..01efdce0fda0 100644
--- a/include/linux/serial_8250.h
+++ b/include/linux/serial_8250.h
@@ -46,8 +46,8 @@ struct plat_serial8250_port {
unsigned int type; /* If UPF_FIXED_TYPE */
upf_t flags; /* UPF_* flags */
u16 bugs; /* port bugs */
- unsigned int (*serial_in)(struct uart_port *, int);
- void (*serial_out)(struct uart_port *, int, int);
+ u32 (*serial_in)(struct uart_port *, unsigned int offset);
+ void (*serial_out)(struct uart_port *, unsigned int offset, u32 val);
u32 (*dl_read)(struct uart_8250_port *up);
void (*dl_write)(struct uart_8250_port *up, u32 value);
void (*set_termios)(struct uart_port *,
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 914b5e97e056..d65b15449cfe 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -443,8 +443,8 @@ struct uart_port {
spinlock_t lock; /* port lock */
unsigned long iobase; /* in/out[bwl] */
unsigned char __iomem *membase; /* read/write[bwl] */
- unsigned int (*serial_in)(struct uart_port *, int);
- void (*serial_out)(struct uart_port *, int, int);
+ u32 (*serial_in)(struct uart_port *, unsigned int offset);
+ void (*serial_out)(struct uart_port *, unsigned int offset, u32 val);
void (*set_termios)(struct uart_port *,
struct ktermios *new,
const struct ktermios *old);