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authorRussell King <rmk+kernel@arm.linux.org.uk>2016-08-03 00:06:00 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-08-03 02:35:27 +0300
commitdae28018f56645b61f5beb84d5831346d3c5e457 (patch)
tree3d472ba7f21e4d0c6d6283605052b716af1794a2 /include/linux/kexec.h
parent465d377701dfe6a08a9f361a3fd926dea7f89c74 (diff)
downloadlinux-dae28018f56645b61f5beb84d5831346d3c5e457.tar.xz
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 'include/linux/kexec.h')
-rw-r--r--include/linux/kexec.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index ce2fe197f583..555227f0029f 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -233,7 +233,7 @@ void crash_save_vmcoreinfo(void);
void arch_crash_save_vmcoreinfo(void);
__printf(1, 2)
void vmcoreinfo_append_str(const char *fmt, ...);
-unsigned long paddr_vmcoreinfo_note(void);
+phys_addr_t paddr_vmcoreinfo_note(void);
#define VMCOREINFO_OSRELEASE(value) \
vmcoreinfo_append_str("OSRELEASE=%s\n", value)