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authorRussell King <rmk+kernel@arm.linux.org.uk>2016-08-02 14:06:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-08-02 19:35:27 -0400
commitdae28018f56645b61f5beb84d5831346d3c5e457 (patch)
tree3d472ba7f21e4d0c6d6283605052b716af1794a2 /arch
parent465d377701dfe6a08a9f361a3fd926dea7f89c74 (diff)
downloadlinux-dae28018f56645b61f5beb84d5831346d3c5e457.tar.bz2
kdump: arrange for paddr_vmcoreinfo_note() to return phys_addr_t
On PAE systems (eg, ARM LPAE) the vmcore note may be located above 4GB physical on 32-bit architectures, so we need a wider type than "unsigned long" here. Arrange for paddr_vmcoreinfo_note() to return a phys_addr_t, thereby allowing it to be located above 4GB. This makes no difference for kexec-tools, as they already assume a 64-bit type when reading from this file. Link: http://lkml.kernel.org/r/E1b8koK-0004HS-K9@rmk-PC.armlinux.org.uk Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Reviewed-by: Pratyush Anand <panand@redhat.com> Acked-by: Baoquan He <bhe@redhat.com> Cc: Keerthy <j-keerthy@ti.com> Cc: Vitaly Andrianov <vitalya@ti.com> Cc: Eric Biederman <ebiederm@xmission.com> Cc: Dave Young <dyoung@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Simon Horman <horms@verge.net.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/ia64/kernel/machine_kexec.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/ia64/kernel/machine_kexec.c b/arch/ia64/kernel/machine_kexec.c
index b72cd7a07222..599507bcec91 100644
--- a/arch/ia64/kernel/machine_kexec.c
+++ b/arch/ia64/kernel/machine_kexec.c
@@ -163,7 +163,7 @@ void arch_crash_save_vmcoreinfo(void)
#endif
}
-unsigned long paddr_vmcoreinfo_note(void)
+phys_addr_t paddr_vmcoreinfo_note(void)
{
return ia64_tpa((unsigned long)(char *)&vmcoreinfo_note);
}