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Date: Wed, 16 Mar 2011 22:10:06 +0100
From: Paul Bolle <pebolle@...cali.nl>
To: David Airlie <airlied@...ux.ie>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm: radeon: *_cs_packet_parse_vline() cleanup
Simplify the way the return value is set a number of times (mostly on
error).
Signed-off-by: Paul Bolle <pebolle@...cali.nl>
---
Should a patch like this go through the trivial tree?
Documentation/SubmittingPatches wasn't entirely clear on that.
drivers/gpu/drm/radeon/evergreen_cs.c | 24 ++++++++----------------
drivers/gpu/drm/radeon/r100.c | 16 ++++++----------
drivers/gpu/drm/radeon/r600_cs.c | 25 +++++++++----------------
3 files changed, 23 insertions(+), 42 deletions(-)
diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c
index 345a75a..d091e70 100644
--- a/drivers/gpu/drm/radeon/evergreen_cs.c
+++ b/drivers/gpu/drm/radeon/evergreen_cs.c
@@ -292,33 +292,28 @@ static int evergreen_cs_packet_parse_vline(struct radeon_cs_parser *p)
if (wait_reg_mem.type != PACKET_TYPE3 ||
wait_reg_mem.opcode != PACKET3_WAIT_REG_MEM) {
DRM_ERROR("vline wait missing WAIT_REG_MEM segment\n");
- r = -EINVAL;
- return r;
+ return -EINVAL;
}
wait_reg_mem_info = radeon_get_ib_value(p, wait_reg_mem.idx + 1);
/* bit 4 is reg (0) or mem (1) */
if (wait_reg_mem_info & 0x10) {
DRM_ERROR("vline WAIT_REG_MEM waiting on MEM rather than REG\n");
- r = -EINVAL;
- return r;
+ return -EINVAL;
}
/* waiting for value to be equal */
if ((wait_reg_mem_info & 0x7) != 0x3) {
DRM_ERROR("vline WAIT_REG_MEM function not equal\n");
- r = -EINVAL;
- return r;
+ return -EINVAL;
}
if ((radeon_get_ib_value(p, wait_reg_mem.idx + 2) << 2) != EVERGREEN_VLINE_STATUS) {
DRM_ERROR("vline WAIT_REG_MEM bad reg\n");
- r = -EINVAL;
- return r;
+ return -EINVAL;
}
if (radeon_get_ib_value(p, wait_reg_mem.idx + 5) != EVERGREEN_VLINE_STAT) {
DRM_ERROR("vline WAIT_REG_MEM bad bit mask\n");
- r = -EINVAL;
- return r;
+ return -EINVAL;
}
/* jump over the NOP */
@@ -336,8 +331,7 @@ static int evergreen_cs_packet_parse_vline(struct radeon_cs_parser *p)
obj = drm_mode_object_find(p->rdev->ddev, crtc_id, DRM_MODE_OBJECT_CRTC);
if (!obj) {
DRM_ERROR("cannot find crtc %d\n", crtc_id);
- r = -EINVAL;
- goto out;
+ return -EINVAL;
}
crtc = obj_to_crtc(obj);
radeon_crtc = to_radeon_crtc(crtc);
@@ -362,12 +356,10 @@ static int evergreen_cs_packet_parse_vline(struct radeon_cs_parser *p)
break;
default:
DRM_ERROR("unknown crtc reloc\n");
- r = -EINVAL;
- goto out;
+ return -EINVAL;
}
}
-out:
- return r;
+ return 0;
}
static int evergreen_packet0_check(struct radeon_cs_parser *p,
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index e372f9e..fcc23e4 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -1205,14 +1205,12 @@ int r100_cs_packet_parse_vline(struct radeon_cs_parser *p)
if (waitreloc.reg != RADEON_WAIT_UNTIL ||
waitreloc.count != 0) {
DRM_ERROR("vline wait had illegal wait until segment\n");
- r = -EINVAL;
- return r;
+ return -EINVAL;
}
if (radeon_get_ib_value(p, waitreloc.idx + 1) != RADEON_WAIT_CRTC_VLINE) {
DRM_ERROR("vline wait had illegal wait until\n");
- r = -EINVAL;
- return r;
+ return -EINVAL;
}
/* jump over the NOP */
@@ -1230,8 +1228,7 @@ int r100_cs_packet_parse_vline(struct radeon_cs_parser *p)
obj = drm_mode_object_find(p->rdev->ddev, crtc_id, DRM_MODE_OBJECT_CRTC);
if (!obj) {
DRM_ERROR("cannot find crtc %d\n", crtc_id);
- r = -EINVAL;
- goto out;
+ return -EINVAL;
}
crtc = obj_to_crtc(obj);
radeon_crtc = to_radeon_crtc(crtc);
@@ -1253,14 +1250,13 @@ int r100_cs_packet_parse_vline(struct radeon_cs_parser *p)
break;
default:
DRM_ERROR("unknown crtc reloc\n");
- r = -EINVAL;
- goto out;
+ return -EINVAL;
}
ib[h_idx] = header;
ib[h_idx + 3] |= RADEON_ENG_DISPLAY_SELECT_CRTC1;
}
-out:
- return r;
+
+ return 0;
}
/**
diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c
index 153095f..5bfed09 100644
--- a/drivers/gpu/drm/radeon/r600_cs.c
+++ b/drivers/gpu/drm/radeon/r600_cs.c
@@ -687,33 +687,28 @@ static int r600_cs_packet_parse_vline(struct radeon_cs_parser *p)
if (wait_reg_mem.type != PACKET_TYPE3 ||
wait_reg_mem.opcode != PACKET3_WAIT_REG_MEM) {
DRM_ERROR("vline wait missing WAIT_REG_MEM segment\n");
- r = -EINVAL;
- return r;
+ return -EINVAL;
}
wait_reg_mem_info = radeon_get_ib_value(p, wait_reg_mem.idx + 1);
/* bit 4 is reg (0) or mem (1) */
if (wait_reg_mem_info & 0x10) {
DRM_ERROR("vline WAIT_REG_MEM waiting on MEM rather than REG\n");
- r = -EINVAL;
- return r;
+ return -EINVAL;
}
/* waiting for value to be equal */
if ((wait_reg_mem_info & 0x7) != 0x3) {
DRM_ERROR("vline WAIT_REG_MEM function not equal\n");
- r = -EINVAL;
- return r;
+ return -EINVAL;
}
if ((radeon_get_ib_value(p, wait_reg_mem.idx + 2) << 2) != AVIVO_D1MODE_VLINE_STATUS) {
DRM_ERROR("vline WAIT_REG_MEM bad reg\n");
- r = -EINVAL;
- return r;
+ return -EINVAL;
}
if (radeon_get_ib_value(p, wait_reg_mem.idx + 5) != AVIVO_D1MODE_VLINE_STAT) {
DRM_ERROR("vline WAIT_REG_MEM bad bit mask\n");
- r = -EINVAL;
- return r;
+ return -EINVAL;
}
/* jump over the NOP */
@@ -732,8 +727,7 @@ static int r600_cs_packet_parse_vline(struct radeon_cs_parser *p)
obj = drm_mode_object_find(p->rdev->ddev, crtc_id, DRM_MODE_OBJECT_CRTC);
if (!obj) {
DRM_ERROR("cannot find crtc %d\n", crtc_id);
- r = -EINVAL;
- goto out;
+ return -EINVAL;
}
crtc = obj_to_crtc(obj);
radeon_crtc = to_radeon_crtc(crtc);
@@ -756,14 +750,13 @@ static int r600_cs_packet_parse_vline(struct radeon_cs_parser *p)
break;
default:
DRM_ERROR("unknown crtc reloc\n");
- r = -EINVAL;
- goto out;
+ return -EINVAL;
}
ib[h_idx] = header;
ib[h_idx + 4] = AVIVO_D2MODE_VLINE_STATUS >> 2;
}
-out:
- return r;
+
+ return 0;
}
static int r600_packet0_check(struct radeon_cs_parser *p,
--
1.7.4.1
--
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