On 05/22/2010 03:57 PM, Maarten Maathuis wrote:
On Sat, May 22, 2010 at 2:30 AM, Prarit Bhargava<prarit@xxxxxxxxxx> wrote:
Fixes linux-next& linux-2.6 checkstack warnings:
drivers/gpu/drm/nouveau/nv40_graph.c: In function `nv40_graph_init':
drivers/gpu/drm/nouveau/nv40_graph.c:400: warning: the frame size of 1184 bytes is larger than 1024 bytes
drivers/gpu/drm/radeon/radeon_atombios.c: In function `radeon_get_atom_connector_info_from_supported_devices_table':
drivers/gpu/drm/radeon/radeon_atombios.c:857: warning: the frame size of 1872 bytes is larger than 1024 bytes
Signed-off-by: Prarit Bhargava<prarit@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/nouveau/nv40_graph.c b/drivers/gpu/drm/nouveau/nv40_graph.c
index 0616c96..3604394 100644
--- a/drivers/gpu/drm/nouveau/nv40_graph.c
+++ b/drivers/gpu/drm/nouveau/nv40_graph.c
@@ -253,7 +253,11 @@ nv40_graph_init(struct drm_device *dev)
if (!dev_priv->engine.graph.ctxprog) {
struct nouveau_grctx ctx = {};
- uint32_t cp[256];
+ uint32_t *cp;
+
+ cp = kmalloc(sizeof(*cp), GFP_KERNEL);
+ if (!cp)
+ return -ENOMEM;
This seems wrong, allocating 1 uint32_t isn't enough.
Oops! That obviously should have been (sizeof(*cp) * 256) ... New patch.
Thanks Maarten,
P.
ctx.dev = dev;
ctx.mode = NOUVEAU_GRCTX_PROG;
@@ -265,6 +269,8 @@ nv40_graph_init(struct drm_device *dev)
nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_INDEX, 0);
for (i = 0; i< ctx.ctxprog_len; i++)
nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_DATA, cp[i]);
+
+ kfree(cp);
}
/* No context present currently */
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 1d05deb..5ad208c 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -682,10 +682,18 @@ bool radeon_get_atom_connector_info_from_supported_devices_table(struct
uint8_t dac;
union atom_supported_devices *supported_devices;
int i, j, max_device;
- struct bios_connector bios_connectors[ATOM_MAX_SUPPORTED_DEVICE];
+ struct bios_connector *bios_connectors;
+ size_t bc_size = sizeof(*bios_connectors) * ATOM_MAX_SUPPORTED_DEVICE;
- if (!atom_parse_data_header(ctx, index,&size,&frev,&crev,&data_offset))
+ bios_connectors = kzalloc(bc_size, GFP_KERNEL);
+ if (!bios_connectors)
+ return false;
+
+ if (!atom_parse_data_header(ctx, index,&size,&frev,&crev,
+&data_offset)) {
+ kfree(bios_connectors);
return false;
+ }
supported_devices =
(union atom_supported_devices *)(ctx->bios + data_offset);
@@ -853,6 +861,7 @@ bool radeon_get_atom_connector_info_from_supported_devices_table(struct
radeon_link_encoder_connector(dev);
+ kfree(bios_connectors);
return true;
}
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Fixes linux-next & linux-2.6 checkstack warnings:
drivers/gpu/drm/nouveau/nv40_graph.c: In function `nv40_graph_init':
drivers/gpu/drm/nouveau/nv40_graph.c:400: warning: the frame size of 1184 bytes is larger than 1024 bytes
drivers/gpu/drm/radeon/radeon_atombios.c: In function `radeon_get_atom_connector_info_from_supported_devices_table':
drivers/gpu/drm/radeon/radeon_atombios.c:857: warning: the frame size of 1872 bytes is larger than 1024 bytes
Signed-off-by: Prarit Bhargava <prarit@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/nouveau/nv40_graph.c b/drivers/gpu/drm/nouveau/nv40_graph.c
index 0616c96..704a25d 100644
--- a/drivers/gpu/drm/nouveau/nv40_graph.c
+++ b/drivers/gpu/drm/nouveau/nv40_graph.c
@@ -253,7 +253,11 @@ nv40_graph_init(struct drm_device *dev)
if (!dev_priv->engine.graph.ctxprog) {
struct nouveau_grctx ctx = {};
- uint32_t cp[256];
+ uint32_t *cp;
+
+ cp = kmalloc(sizeof(*cp) * 256, GFP_KERNEL);
+ if (!cp)
+ return -ENOMEM;
ctx.dev = dev;
ctx.mode = NOUVEAU_GRCTX_PROG;
@@ -265,6 +269,8 @@ nv40_graph_init(struct drm_device *dev)
nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_INDEX, 0);
for (i = 0; i < ctx.ctxprog_len; i++)
nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_DATA, cp[i]);
+
+ kfree(cp);
}
/* No context present currently */
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 1d05deb..02697e2 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -682,10 +682,18 @@ bool radeon_get_atom_connector_info_from_supported_devices_table(struct
uint8_t dac;
union atom_supported_devices *supported_devices;
int i, j, max_device;
- struct bios_connector bios_connectors[ATOM_MAX_SUPPORTED_DEVICE];
+ struct bios_connector *bios_connectors;
+ size_t bc_size = sizeof(*bios_connectors) * ATOM_MAX_SUPPORTED_DEVICE;
- if (!atom_parse_data_header(ctx, index, &size, &frev, &crev, &data_offset))
+ bios_connectors = kzalloc(bc_size, GFP_KERNEL);
+ if (!bios_connectors)
+ return false;
+
+ if (!atom_parse_data_header(ctx, index, &size, &frev, &crev,
+ &data_offset)) {
+ kfree(bios_connectors);
return false;
+ }
supported_devices =
(union atom_supported_devices *)(ctx->bios + data_offset);
@@ -853,6 +861,7 @@ bool radeon_get_atom_connector_info_from_supported_devices_table(struct
radeon_link_encoder_connector(dev);
+ kfree(bios_connectors);
return true;
}
* Unmerged path localversion-next
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