From: Andrew Morton <akpm@linux-foundation.org>
Date: Tue, 4 Mar 2008 22:28:40 +0000 (-0800)
Subject: add noinline_for_stack
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=735c4fb916e9f83a9350aeb2680d77d01ea75094;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

add noinline_for_stack

People are adding `noinline' in various places to prevent excess stack
consumption due to gcc inlining.  But once this is done, it is quite unobvious
why the `noinline' is present in the code.  We can comment each and every
site, or we can use noinline_for_stack.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index d0e17e1657dc..dcae0c8d97e6 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -138,6 +138,12 @@ extern void __chk_io_ptr(const volatile void __iomem *);
 #define noinline
 #endif
 
+/*
+ * Rather then using noinline to prevent stack consumption, use
+ * noinline_for_stack instead.  For documentaiton reasons.
+ */
+#define noinline_for_stack noinline
+
 #ifndef __always_inline
 #define __always_inline inline
 #endif