linux-kernel - [tip:x86/platform] x86/platform/intel-mid: Make several arrays static, to make code smaller

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Date:   Tue, 29 Aug 2017 06:06:55 -0700
From:   tip-bot for Colin Ian King <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     andriy.shevchenko@...ux.intel.com, hpa@...or.com, lukas@...ner.de,
        peterz@...radead.org, mingo@...nel.org,
        torvalds@...ux-foundation.org, colin.king@...onical.com,
        bhelgaas@...gle.com, linux-kernel@...r.kernel.org,
        tglx@...utronix.de
Subject: [tip:x86/platform] x86/platform/intel-mid: Make several arrays
 static, to make code smaller

Commit-ID:  3308376a914b9c3f57a12072c063814403d983a8
Gitweb:     http://git.kernel.org/tip/3308376a914b9c3f57a12072c063814403d983a8
Author:     Colin Ian King <colin.king@...onical.com>
AuthorDate: Fri, 25 Aug 2017 17:32:06 +0100
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Tue, 29 Aug 2017 13:30:16 +0200

x86/platform/intel-mid: Make several arrays static, to make code smaller

Don't populate arrays on the stack, instead make them static.
Makes the object code smaller by 76 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
   4217	   1540	    128	   5885	   16fd	arch/x86/platform/intel-mid/pwr.o

After:
   text	   data	    bss	    dec	    hex	filename
   3981	   1700	    128	   5809	   16b1	arch/x86/platform/intel-mid/pwr.o

Signed-off-by: Colin Ian King <colin.king@...onical.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Lukas Wunner <lukas@...ner.de>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: kernel-janitors@...r.kernel.org
Link: http://lkml.kernel.org/r/20170825163206.23250-1-colin.king@canonical.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/platform/intel-mid/pwr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/platform/intel-mid/pwr.c b/arch/x86/platform/intel-mid/pwr.c
index ef03852..49ec5b9 100644
--- a/arch/x86/platform/intel-mid/pwr.c
+++ b/arch/x86/platform/intel-mid/pwr.c
@@ -444,7 +444,7 @@ static int mid_set_initial_state(struct mid_pwr *pwr, const u32 *states)
 static int pnw_set_initial_state(struct mid_pwr *pwr)
 {
 	/* On Penwell SRAM must stay powered on */
-	const u32 states[] = {
+	static const u32 states[] = {
 		0xf00fffff,		/* PM_SSC(0) */
 		0xffffffff,		/* PM_SSC(1) */
 		0xffffffff,		/* PM_SSC(2) */
@@ -455,7 +455,7 @@ static int pnw_set_initial_state(struct mid_pwr *pwr)
 
 static int tng_set_initial_state(struct mid_pwr *pwr)
 {
-	const u32 states[] = {
+	static const u32 states[] = {
 		0xffffffff,		/* PM_SSC(0) */
 		0xffffffff,		/* PM_SSC(1) */
 		0xffffffff,		/* PM_SSC(2) */