From: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Date: Tue, 31 Oct 2017 17:22:23 +0000 (+0100)
Subject: tile: pass machine size to sparse
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ea82daf4354e45e9b830d9fe58713011c83b07b8;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

tile: pass machine size to sparse

By default, sparse assumes a 64bit machine when compiled on x86-64
and 32bit when compiled on anything else.

This can of course create all sort of problems, like issuing false
warnings like: 'constant ... is so big it is unsigned long long'
or 'shift too big (32) for type unsigned long' when the architecture
is 64bit while sparse was compiled on a 32bit machine, or worse,
to not emit legitimate warnings in the reverse situation.

Fix this by passing to sparse the appropriate -m32/-m64 flag.

To: Chris Metcalf <cmetcalf@mellanox.com>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com>
---

diff --git a/arch/tile/Makefile b/arch/tile/Makefile
index 4dc380a519d4..8fa0befba32b 100644
--- a/arch/tile/Makefile
+++ b/arch/tile/Makefile
@@ -51,6 +51,8 @@ else
 BITS := 32
 endif
 
+CHECKFLAGS	+= -m$(BITS)
+
 head-y		:= arch/tile/kernel/head_$(BITS).o
 
 libs-y		+= arch/tile/lib/