From 71ffce21e53bbe7a7ae8efce1982a97718189be6 Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Wed, 15 Sep 2021 12:36:11 +0100
Subject: drm/radeon: make array encoded_lanes static
Git-commit: b64cc0575d0a1b9e96c5345a6a8a06a43377acf9
Patch-mainline: v5.16-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Don't populate the read-only array encoded_lanes on the stack but instead it
static. Also makes the object code smaller by 97 bytes:
Before:
text data bss dec hex filename
38899 8064 0 46963 b773 ./drivers/gpu/drm/radeon/r600_dpm.o
After:
text data bss dec hex filename
38738 8128 0 46866 b712 ./drivers/gpu/drm/radeon/r600_dpm.o
(gcc version 11.2.0)
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/radeon/r600_dpm.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/r600_dpm.c b/drivers/gpu/drm/radeon/r600_dpm.c
index fd4226b99862..9d2bcb9551e6 100644
--- a/drivers/gpu/drm/radeon/r600_dpm.c
+++ b/drivers/gpu/drm/radeon/r600_dpm.c
@@ -1361,7 +1361,9 @@ u16 r600_get_pcie_lane_support(struct radeon_device *rdev,
u8 r600_encode_pci_lane_width(u32 lanes)
{
- u8 encoded_lanes[] = { 0, 1, 2, 0, 3, 0, 0, 0, 4, 0, 0, 0, 5, 0, 0, 0, 6 };
+ static const u8 encoded_lanes[] = {
+ 0, 1, 2, 0, 3, 0, 0, 0, 4, 0, 0, 0, 5, 0, 0, 0, 6
+ };
if (lanes > 16)
return 0;
--
2.38.1