828 	struct printk_message pmsg = {  in devkmsg_read()  local
837 	if (!printk_get_next_message(&pmsg, atomic64_read(&user->seq), true, false)) {  in devkmsg_read()
854 				printk_get_next_message(&pmsg, atomic64_read(&user->seq), true,  in devkmsg_read()
860 	if (pmsg.dropped) {  in devkmsg_read()
862 		atomic64_set(&user->seq, pmsg.seq);  in devkmsg_read()
867 	atomic64_set(&user->seq, pmsg.seq + 1);  in devkmsg_read()
869 	if (pmsg.outbuf_len > count) {  in devkmsg_read()
874 	if (copy_to_user(buf, outbuf, pmsg.outbuf_len)) {  in devkmsg_read()
878 	ret = pmsg.outbuf_len;  in devkmsg_read()
2903 static void console_prepend_message(struct printk_message *pmsg, const char *fmt, ...)  in console_prepend_message()  argument
2905 	struct printk_buffers *pbufs = pmsg->pbufs;  in console_prepend_message()
2926 	if (pmsg->outbuf_len + len >= outbuf_sz) {  in console_prepend_message()
2928 		pmsg->outbuf_len = outbuf_sz - (len + 1);  in console_prepend_message()
2929 		outbuf[pmsg->outbuf_len] = 0;  in console_prepend_message()
2932 	memmove(outbuf + len, outbuf, pmsg->outbuf_len + 1);  in console_prepend_message()
2934 	pmsg->outbuf_len += len;  in console_prepend_message()
2945 void console_prepend_dropped(struct printk_message *pmsg, unsigned long dropped)  in console_prepend_dropped()  argument
2947 	console_prepend_message(pmsg, "** %lu printk messages dropped **\n", dropped);  in console_prepend_dropped()
2956 void console_prepend_replay(struct printk_message *pmsg)  in console_prepend_replay()  argument
2958 	console_prepend_message(pmsg, "** replaying previous printk message **\n");  in console_prepend_replay()
2980 bool printk_get_next_message(struct printk_message *pmsg, u64 seq,  in printk_get_next_message()  argument
2983 	struct printk_buffers *pbufs = pmsg->pbufs;  in printk_get_next_message()
3008 	pmsg->seq = r.info->seq;  in printk_get_next_message()
3009 	pmsg->dropped = r.info->seq - seq;  in printk_get_next_message()
3027 	pmsg->outbuf_len = len;  in printk_get_next_message()
3085 	struct printk_message pmsg = {  in console_emit_next_record()  local
3092 	if (!printk_get_next_message(&pmsg, con->seq, is_extended, true))  in console_emit_next_record()
3095 	con->dropped += pmsg.dropped;  in console_emit_next_record()
3098 	if (pmsg.outbuf_len == 0) {  in console_emit_next_record()
3099 		con->seq = pmsg.seq + 1;  in console_emit_next_record()
3104 		console_prepend_dropped(&pmsg, con->dropped);  in console_emit_next_record()
3118 		con->write(con, outbuf, pmsg.outbuf_len);  in console_emit_next_record()
3119 		con->seq = pmsg.seq + 1;  in console_emit_next_record()
3138 		con->write(con, outbuf, pmsg.outbuf_len);  in console_emit_next_record()
3143 		con->seq = pmsg.seq + 1;  in console_emit_next_record()