Commit a4c41fe3 authored Nov 28, 2022 by Heiko Carstens Committed by Alexander Gordeev Dec 06, 2022

s390/sclp: keep sclp_early_sccb



Keep sclp_early_sccb so it can also be used after initdata has been
freed. This is a prerequisite to allow printing a message from the
machine check handler.

Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

parent f9e5938a

arch/s390/mm/init.c

+0 −3

Original line number	Diff line number	Diff line
		@@ -208,9 +208,6 @@ void free_initmem(void)
		__set_memory((unsigned long)_sinittext,
		(unsigned long)(_einittext - _sinittext) >> PAGE_SHIFT,
		SET_MEMORY_RW \| SET_MEMORY_NX);
		free_reserved_area(sclp_early_sccb,
		sclp_early_sccb + EXT_SCCB_READ_SCP,
		POISON_FREE_INITMEM, "unused early sccb");
		free_initmem_default(POISON_FREE_INITMEM);
		}

drivers/s390/char/sclp_early_core.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -17,7 +17,7 @@

		static struct read_info_sccb __bootdata(sclp_info_sccb);
		static int __bootdata(sclp_info_sccb_valid);
		char *__bootdata(sclp_early_sccb);
		char *__bootdata_preserved(sclp_early_sccb);
		int sclp_init_state = sclp_init_state_uninitialized;
		/*
		* Used to keep track of the size of the event masks. Qemu until version 2.11