From aa842d736e29439d6f1a1478cd7c780d972f7cc5 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 20 Aug 2013 18:47:07 -0400 Subject: [PATCH] drm/radeon: gcc fixes for rv6xx 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/rv6xx_dpm.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/rv6xx_dpm.c b/drivers/gpu/drm/radeon/rv6xx_dpm.c index bdd888b4db2b..ab1f2016f21e 100644 --- a/drivers/gpu/drm/radeon/rv6xx_dpm.c +++ b/drivers/gpu/drm/radeon/rv6xx_dpm.c @@ -1918,6 +1918,7 @@ static int rv6xx_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 rv6xx_ps), GFP_KERNEL); if (ps == NULL) { kfree(rdev->pm.dpm.ps); @@ -1926,12 +1927,12 @@ static int rv6xx_parse_power_table(struct radeon_device *rdev) rdev->pm.dpm.ps[i].ps_priv = ps; rv6xx_parse_pplib_non_clock_info(rdev, &rdev->pm.dpm.ps[i], non_clock_info); + 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)); rv6xx_parse_pplib_clock_info(rdev, &rdev->pm.dpm.ps[i], j, clock_info); -- 2.20.1