[tip: x86/cleanups] x86/boot: Fix a comment's incorrect file reference

[tip-bot2 for Sean Christopherson]

The following commit has been merged into the x86/cleanups branch of tip:

Commit-ID:     957a227d413b06130b7d57d1954d821edf6991c1
Gitweb:        https://git.kernel.org/tip/957a227d413b06130b7d57d1954d821edf6991c1
Author:        Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
AuthorDate:    Tue, 26 Nov 2019 11:59:11 -08:00
Committer:     Borislav Petkov <bp@xxxxxxx>
CommitterDate: Mon, 16 Dec 2019 14:09:33 +01:00

x86/boot: Fix a comment's incorrect file reference

Fix the comment for 'struct real_mode_header' to reference the correct
assembly file, realmode/rm/header.S.  The comment has always incorrectly
referenced realmode.S, which doesn't exist, as defining the associated
asm blob.

Specify the file's path relative to arch/x86 to avoid confusion with
boot/header.S.  Update the comment for 'struct trampoline_header' to
also include the relative path to keep things consistent, and tweak the
dual 64/32 reference so that it doesn't appear to be an extension of the
relative path, i.e. avoid "realmode/rm/trampoline_32/64.S".

Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: x86-ml <x86@xxxxxxxxxx>
Link: https://lkml.kernel.org/r/20191126195911.3429-1-sean.j.christopherson@xxxxxxxxx
---
 arch/x86/include/asm/realmode.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h
index 09ecc32..b35030e 100644
--- a/arch/x86/include/asm/realmode.h
+++ b/arch/x86/include/asm/realmode.h
@@ -14,7 +14,7 @@
 #include <linux/types.h>
 #include <asm/io.h>
 
-/* This must match data at realmode.S */
+/* This must match data at realmode/rm/header.S */
 struct real_mode_header {
 	u32	text_start;
 	u32	ro_end;
@@ -36,7 +36,7 @@ struct real_mode_header {
 #endif
 };
 
-/* This must match data at trampoline_32/64.S */
+/* This must match data at realmode/rm/trampoline_{32,64}.S */
 struct trampoline_header {
 #ifdef CONFIG_X86_32
 	u32 start;