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authorLiviu Dudau <liviu@dudau.co.uk>2023-05-09 19:29:21 +0200
committerThomas Bogendoerfer <tsbogend@alpha.franken.de>2023-05-23 11:01:38 +0200
commit4897a898a216058dec55e5e5902534e6e224fcdf (patch)
tree1125b4b5cc8c09a4cd1767f741f9b7ca75641b1e
parentMIPS: Alchemy: fix dbdma2 (diff)
downloadlinux-4897a898a216058dec55e5e5902534e6e224fcdf.tar.xz
linux-4897a898a216058dec55e5e5902534e6e224fcdf.zip
mips: Move initrd_start check after initrd address sanitisation.
PAGE_OFFSET is technically a virtual address so when checking the value of initrd_start against it we should make sure that it has been sanitised from the values passed by the bootloader. Without this change, even with a bootloader that passes correct addresses for an initrd, we are failing to load it on MT7621 boards, for example. Signed-off-by: Liviu Dudau <liviu@dudau.co.uk> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
-rw-r--r--arch/mips/kernel/setup.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index febdc5564638..c0e65135481b 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -158,10 +158,6 @@ static unsigned long __init init_initrd(void)
pr_err("initrd start must be page aligned\n");
goto disable;
}
- if (initrd_start < PAGE_OFFSET) {
- pr_err("initrd start < PAGE_OFFSET\n");
- goto disable;
- }
/*
* Sanitize initrd addresses. For example firmware
@@ -174,6 +170,11 @@ static unsigned long __init init_initrd(void)
initrd_end = (unsigned long)__va(end);
initrd_start = (unsigned long)__va(__pa(initrd_start));
+ if (initrd_start < PAGE_OFFSET) {
+ pr_err("initrd start < PAGE_OFFSET\n");
+ goto disable;
+ }
+
ROOT_DEV = Root_RAM0;
return PFN_UP(end);
disable: