linux-kernel - [PATCH] drm/nouveau/bios/init: make const arrays probe

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Message-Id: <20191102113954.25555-1-colin.king@canonical.com>
Date:   Sat,  2 Nov 2019 11:39:54 +0000
From:   Colin King <colin.king@...onical.com>
To:     Ben Skeggs <bskeggs@...hat.com>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, nouveau@...ts.freedesktop.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm/nouveau/bios/init: make const arrays probe_order static, makes object smaller

From: Colin Ian King <colin.king@...onical.com>

Don't populate const arrays on the stack but instead make them
static. Makes the object code smaller by 6 bytes.

Before:
   text	   data	    bss	    dec	    hex	filename
 103075	   9692	      0	 112767	  1b87f	nvkm/subdev/bios/init.o

After:
   text	   data	    bss	    dec	    hex	filename
 102909	   9852	      0	 112761	  1b879	nvkm/subdev/bios/init.o

(gcc version 9.2.1, amd64)

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c
index 9de74f41dcd2..dc8625eff20a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c
@@ -546,9 +546,9 @@ init_tmds_reg(struct nvbios_init *init, u8 tmds)
 	 * CR58 for CR57 = 0 to index a table of offsets to the basic
 	 * 0x6808b0 address, and then flip the offset by 8.
 	 */
-	const int pramdac_offset[13] = {
+	static const int pramdac_offset[13] = {
 		0, 0, 0x8, 0, 0x2000, 0, 0, 0, 0x2008, 0, 0, 0, 0x2000 };
-	const u32 pramdac_table[4] = {
+	static const u32 pramdac_table[4] = {
 		0x6808b0, 0x6808b8, 0x6828b0, 0x6828b8 };
 
 	if (tmds >= 0x80) {
-- 
2.20.1