From d5ab7a34f9bbad54f89b812e6b0d2d898f9433db Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Tue, 24 Jan 2017 15:58:52 +0100 Subject: s390/sclp: make early sclp code readable This patch - unifies the old sclp early code and the sclp early printk code, so they can use common functions - makes sure all sclp early functions and variables have the same "sclp_early" prefix - converts the sclp early printk code into readable code by using existing data structures instead of hard coded magic arrays - splits the early sclp code into two files: sclp_early.c and sclp_early_core.c. The core file contains everything that is required by the kernel decompressor and may not call functions not contained within the core file. Otherwise the result would be a link error. - changes interrupt handling to be completely synchronous. The old early sclp code had a small window which allowed to receive several interrupts instead of exactly the single expected interrupt. This did hide a subtle potential bug, which is fixed with this large rework. - contains a couple of small cleanups. Reviewed-by: Peter Oberparleiter Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/boot/compressed/misc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/s390/boot') diff --git a/arch/s390/boot/compressed/misc.c b/arch/s390/boot/compressed/misc.c index 8515dd5a5663..fa95041fa9f6 100644 --- a/arch/s390/boot/compressed/misc.c +++ b/arch/s390/boot/compressed/misc.c @@ -66,7 +66,7 @@ static unsigned long free_mem_end_ptr; static int puts(const char *s) { - _sclp_print_early(s); + sclp_early_printk(s); return 0; } -- cgit