From 1e05c4d918b9d08167773cdd6edb05dde0975b40 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 20 Aug 2013 19:04:02 -0400 Subject: [PATCH] drm/radeon: gcc fixes for ni dpm Newer versions of gcc seem to wander off into the weeds when dealing with variable sizes arrays in structs. Rather than indexing the arrays, use pointer arithmetic. See bugs: https://bugs.freedesktop.org/show_bug.cgi?id=66932 https://bugs.freedesktop.org/show_bug.cgi?id=66972 https://bugs.freedesktop.org/show_bug.cgi?id=66945 Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/ni_dpm.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/ni_dpm.c b/drivers/gpu/drm/radeon/ni_dpm.c index 238078c2b319..88aa41e341af 100644 --- a/drivers/gpu/drm/radeon/ni_dpm.c +++ b/drivers/gpu/drm/radeon/ni_dpm.c @@ -4038,6 +4038,7 @@ static int ni_parse_power_table(struct radeon_device *rdev) (power_state->v1.ucNonClockStateIndex * power_info->pplib.ucNonClockSize)); if (power_info->pplib.ucStateEntrySize - 1) { + u8 *idx; ps = kzalloc(sizeof(struct ni_ps), GFP_KERNEL); if (ps == NULL) { kfree(rdev->pm.dpm.ps); @@ -4047,12 +4048,12 @@ static int ni_parse_power_table(struct radeon_device *rdev) ni_parse_pplib_non_clock_info(rdev, &rdev->pm.dpm.ps[i], non_clock_info, power_info->pplib.ucNonClockSize); + idx = (u8 *)&power_state->v1.ucClockStateIndices[0]; for (j = 0; j < (power_info->pplib.ucStateEntrySize - 1); j++) { clock_info = (union pplib_clock_info *) (mode_info->atom_context->bios + data_offset + le16_to_cpu(power_info->pplib.usClockInfoArrayOffset) + - (power_state->v1.ucClockStateIndices[j] * - power_info->pplib.ucClockInfoSize)); + (idx[j] * power_info->pplib.ucClockInfoSize)); ni_parse_pplib_clock_info(rdev, &rdev->pm.dpm.ps[i], j, clock_info);