char: ipmi: ipmi_ssif: Replace timeval with timespec64

This patch replaces timeval with timespec64 as 32 bit 'struct timeval'
will not give current time beyond 2038.

The patch changes the code to use ktime_get_real_ts64() which returns
a 'struct timespec64' instead of do_gettimeofday() which returns a
'struct timeval'

This patch also alters the format string in pr_info() for now.tv_sec
to incorporate 'long long' on 32 bit architectures.

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/char/ipmi/ipmi_ssif.c

@@ -52,6 +52,7 @@
 #include <linux/kthread.h>
 #include <linux/acpi.h>
 #include <linux/ctype.h>
+#include <linux/time64.h>
 
 #define PFX "ipmi_ssif: "
 #define DEVICE_NAME "ipmi_ssif"
@@ -1041,12 +1042,12 @@ static void sender(void                *send_info,
 	start_next_msg(ssif_info, flags);
 
 	if (ssif_info->ssif_debug & SSIF_DEBUG_TIMING) {
-		struct timeval t;
+		struct timespec64 t;
 
-		do_gettimeofday(&t);
-		pr_info("**Enqueue %02x %02x: %ld.%6.6ld\n",
+		ktime_get_real_ts64(&t);
+		pr_info("**Enqueue %02x %02x: %lld.%6.6ld\n",
 		       msg->data[0], msg->data[1],
-		       (long) t.tv_sec, (long) t.tv_usec);
+		       (long long) t.tv_sec, (long) t.tv_nsec / NSEC_PER_USEC);
 	}
 }