Re: [PATCH 1/2] serial: 8250: Let drivers request full 16550A feature probing

From: Jiri Slaby
Date: Mon Sep 19 2022 - 00:42:35 EST


On 17. 09. 22, 12:07, Maciej W. Rozycki wrote:
--- linux-macro.orig/include/linux/serial_core.h
+++ linux-macro/include/linux/serial_core.h
@@ -414,7 +414,7 @@ struct uart_icount {
__u32 buf_overrun;
};
-typedef unsigned int __bitwise upf_t;
+typedef __u64 __bitwise upf_t;

Why __u64 and not u64?

typedef unsigned int __bitwise upstat_t;
struct uart_port {
@@ -522,6 +522,7 @@ struct uart_port {
#define UPF_FIXED_PORT ((__force upf_t) (1 << 29))
#define UPF_DEAD ((__force upf_t) (1 << 30))
#define UPF_IOREMAP ((__force upf_t) (1 << 31))
+#define UPF_FULL_PROBE ((__force upf_t) (1ULL << 32))

This looks like a perfect time to switch them all to BIT_ULL().

thanks,
--
js
suse labs