Re: [PATCH] vhost: fix sparse warnings
Signed-off-by: Christoph Hellwig h...@lst.de
Index: linux-2.6/drivers/vhost/net.c
===
--- linux-2.6.orig/drivers/vhost/net.c 2010-04-05 21:13:24.196004388 +0200
+++ linux-2.6/drivers/vhost/net.c 2010-04-05 21:13:32.726004109 +0200
@@ -641,7 +641,7 @@ static struct miscdevice vhost_net_misc
vhost_net_fops,
};
-int vhost_net_init(void)
+static int vhost_net_init(void)
{
int r = vhost_init();
if (r)
@@ -658,7 +658,7 @@ err_init:
}
module_init(vhost_net_init);
-void vhost_net_exit(void)
+static void vhost_net_exit(void)
{
misc_deregister(vhost_net_misc);
vhost_cleanup();
Index: linux-2.6/drivers/vhost/vhost.c
===
--- linux-2.6.orig/drivers/vhost/vhost.c2010-04-05 21:12:58.806004249
+0200
+++ linux-2.6/drivers/vhost/vhost.c 2010-04-05 21:14:44.681010674 +0200
@@ -710,7 +710,7 @@ int vhost_log_write(struct vhost_virtque
return 0;
}
-int translate_desc(struct vhost_dev *dev, u64 addr, u32 len,
+static int translate_desc(struct vhost_dev *dev, u64 addr, u32 len,
struct iovec iov[], int iov_size)
{
const struct vhost_memory_region *reg;
@@ -736,7 +736,7 @@ int translate_desc(struct vhost_dev *dev
_iov = iov + ret;
size = reg-memory_size - addr + reg-guest_phys_addr;
_iov-iov_len = min((u64)len, size);
- _iov-iov_base = (void *)(unsigned long)
+ _iov-iov_base = (void __user *)(unsigned long)
(reg-userspace_addr + addr - reg-guest_phys_addr);
s += size;
addr += size;
@@ -990,7 +990,7 @@ void vhost_discard_vq_desc(struct vhost_
* want to notify the guest, using eventfd. */
int vhost_add_used(struct vhost_virtqueue *vq, unsigned int head, int len)
{
- struct vring_used_elem *used;
+ struct vring_used_elem __user *used;
/* The virtqueue contains a ring of used buffers. Get a pointer to the
* next entry in that used ring. */
@@ -1014,7 +1014,8 @@ int vhost_add_used(struct vhost_virtqueu
smp_wmb();
/* Log used ring entry write. */
log_write(vq-log_base,
- vq-log_addr + ((void *)used - (void *)vq-used),
+ vq-log_addr +
+ ((void __user *)used - (void __user *)vq-used),
sizeof *used);
/* Log used index update. */
log_write(vq-log_base,
--
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[PATCH] vhost: fix sparse warnings
Index: linux-2.6/drivers/vhost/net.c
===
--- linux-2.6.orig/drivers/vhost/net.c 2010-04-05 21:13:24.196004388 +0200
+++ linux-2.6/drivers/vhost/net.c 2010-04-05 21:13:32.726004109 +0200
@@ -641,7 +641,7 @@ static struct miscdevice vhost_net_misc
vhost_net_fops,
};
-int vhost_net_init(void)
+static int vhost_net_init(void)
{
int r = vhost_init();
if (r)
@@ -658,7 +658,7 @@ err_init:
}
module_init(vhost_net_init);
-void vhost_net_exit(void)
+static void vhost_net_exit(void)
{
misc_deregister(vhost_net_misc);
vhost_cleanup();
Index: linux-2.6/drivers/vhost/vhost.c
===
--- linux-2.6.orig/drivers/vhost/vhost.c2010-04-05 21:12:58.806004249
+0200
+++ linux-2.6/drivers/vhost/vhost.c 2010-04-05 21:14:44.681010674 +0200
@@ -710,7 +710,7 @@ int vhost_log_write(struct vhost_virtque
return 0;
}
-int translate_desc(struct vhost_dev *dev, u64 addr, u32 len,
+static int translate_desc(struct vhost_dev *dev, u64 addr, u32 len,
struct iovec iov[], int iov_size)
{
const struct vhost_memory_region *reg;
@@ -736,7 +736,7 @@ int translate_desc(struct vhost_dev *dev
_iov = iov + ret;
size = reg-memory_size - addr + reg-guest_phys_addr;
_iov-iov_len = min((u64)len, size);
- _iov-iov_base = (void *)(unsigned long)
+ _iov-iov_base = (void __user *)(unsigned long)
(reg-userspace_addr + addr - reg-guest_phys_addr);
s += size;
addr += size;
@@ -990,7 +990,7 @@ void vhost_discard_vq_desc(struct vhost_
* want to notify the guest, using eventfd. */
int vhost_add_used(struct vhost_virtqueue *vq, unsigned int head, int len)
{
- struct vring_used_elem *used;
+ struct vring_used_elem __user *used;
/* The virtqueue contains a ring of used buffers. Get a pointer to the
* next entry in that used ring. */
@@ -1014,7 +1014,8 @@ int vhost_add_used(struct vhost_virtqueu
smp_wmb();
/* Log used ring entry write. */
log_write(vq-log_base,
- vq-log_addr + ((void *)used - (void *)vq-used),
+ vq-log_addr +
+ ((void __user *)used - (void __user *)vq-used),
sizeof *used);
/* Log used index update. */
log_write(vq-log_base,
--
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