From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Tue, 26 Sep 2006 08:52:39 +0000 (+0200)
Subject: [PATCH] Type checking for write_pda()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=85691f135db78f3548107a0abe383dfab3bc38fa;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[PATCH] Type checking for write_pda()

I just added type checking for assignments the PDA in the i386 PDA code.
Here's the x86-64 equivalent.  (Obviously this doesn't contain the latest
x86-64 PDA change.)

Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Andi Kleen <ak@suse.de>
---

diff --git a/include/asm-x86_64/pda.h b/include/asm-x86_64/pda.h
index c2aac96ac323..5dadb201f769 100644
--- a/include/asm-x86_64/pda.h
+++ b/include/asm-x86_64/pda.h
@@ -49,7 +49,8 @@ extern struct x8664_pda _proxy_pda;
 
 #define pda_to_op(op,field,val) do { \
 	typedef typeof(_proxy_pda.field) T__; \
-       switch (sizeof(_proxy_pda.field)) { 		\
+	if (0) { T__ tmp__; tmp__ = (val); }  \
+	switch (sizeof(_proxy_pda.field)) { 		\
 case 2: \
 asm(op "w %1,%%gs:%c2" : "+m" (_proxy_pda.field) : \
 	"ri" ((T__)val),"i"(pda_offset(field))); break; \