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authorVasily Gorbik <gor@linux.ibm.com>2019-04-01 19:10:51 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2019-04-10 17:47:11 +0200
commit1e941d39493f1820475d80729a03cd7ab8c3c86d (patch)
tree97ece5ef80810878061b3ee04175361f2a26e41e /arch/s390/kernel/ipl.c
parents390: introduce .boot.preserved.data section (diff)
downloadlinux-dev-1e941d39493f1820475d80729a03cd7ab8c3c86d.tar.xz
linux-dev-1e941d39493f1820475d80729a03cd7ab8c3c86d.zip
s390: move ipl block to .boot.preserved.data section
.boot.preserved.data is a better fit for ipl block than .boot.data which is discarded after init. Reusing .boot.preserved.data allows to simplify code a little bit and avoid copying data from .boot.data to persistent variables. Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/ipl.c')
-rw-r--r--arch/s390/kernel/ipl.c15
1 files changed, 2 insertions, 13 deletions
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 18a5d6317acc..d2e8dc60f2cf 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -119,11 +119,8 @@ static char *dump_type_str(enum dump_type type)
}
}
-struct ipl_parameter_block __bootdata(early_ipl_block);
-int __bootdata(early_ipl_block_valid);
-
-static int ipl_block_valid;
-static struct ipl_parameter_block ipl_block;
+int __bootdata_preserved(ipl_block_valid);
+struct ipl_parameter_block __bootdata_preserved(ipl_block);
static int reipl_capabilities = IPL_TYPE_UNKNOWN;
@@ -1675,14 +1672,6 @@ void __init setup_ipl(void)
atomic_notifier_chain_register(&panic_notifier_list, &on_panic_nb);
}
-void __init ipl_store_parameters(void)
-{
- if (early_ipl_block_valid) {
- memcpy(&ipl_block, &early_ipl_block, sizeof(ipl_block));
- ipl_block_valid = 1;
- }
-}
-
void s390_reset_system(void)
{
/* Disable prefixing */