aboutsummaryrefslogtreecommitdiff
path: root/samples
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2018-12-28 19:41:58 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-12-28 19:41:58 -0800
commit1984f65c2fbc0d2b557d6e89ece9b39267e215c6 (patch)
treecfaec61ef718812e0ba4c06cb8c3338af71fe1f7 /samples
parentf346b0becb1bc62e45495f9cdbae3eef35d0b635 (diff)
parent8ba35b3a0046d6573c98f00461d9bd1b86250d35 (diff)
downloadlinux-stericsson-1984f65c2fbc0d2b557d6e89ece9b39267e215c6.tar.gz
Merge tag 'vfio-v4.21-rc1' of git://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson: - Replace global vfio-pci lock with per bus lock to allow concurrent open and release (Alex Williamson) - Declare mdev function as static (Paolo Cretaro) - Convert char to u8 in mdev/mtty sample driver (Nathan Chancellor) * tag 'vfio-v4.21-rc1' of git://github.com/awilliam/linux-vfio: vfio-mdev/samples: Use u8 instead of char for handle functions vfio/mdev: add static modifier to add_mdev_supported_type vfio/pci: Parallelize device open and release
Diffstat (limited to 'samples')
-rw-r--r--samples/vfio-mdev/mtty.c26
1 files changed, 13 insertions, 13 deletions
diff --git a/samples/vfio-mdev/mtty.c b/samples/vfio-mdev/mtty.c
index 7abb79d8313d..f6732aa16bb1 100644
--- a/samples/vfio-mdev/mtty.c
+++ b/samples/vfio-mdev/mtty.c
@@ -171,7 +171,7 @@ static struct mdev_state *find_mdev_state_by_uuid(uuid_le uuid)
return NULL;
}
-void dump_buffer(char *buf, uint32_t count)
+void dump_buffer(u8 *buf, uint32_t count)
{
#if defined(DEBUG)
int i;
@@ -250,7 +250,7 @@ static void mtty_create_config_space(struct mdev_state *mdev_state)
}
static void handle_pci_cfg_write(struct mdev_state *mdev_state, u16 offset,
- char *buf, u32 count)
+ u8 *buf, u32 count)
{
u32 cfg_addr, bar_mask, bar_index = 0;
@@ -304,7 +304,7 @@ static void handle_pci_cfg_write(struct mdev_state *mdev_state, u16 offset,
}
static void handle_bar_write(unsigned int index, struct mdev_state *mdev_state,
- u16 offset, char *buf, u32 count)
+ u16 offset, u8 *buf, u32 count)
{
u8 data = *buf;
@@ -475,7 +475,7 @@ static void handle_bar_write(unsigned int index, struct mdev_state *mdev_state,
}
static void handle_bar_read(unsigned int index, struct mdev_state *mdev_state,
- u16 offset, char *buf, u32 count)
+ u16 offset, u8 *buf, u32 count)
{
/* Handle read requests by guest */
switch (offset) {
@@ -650,7 +650,7 @@ static void mdev_read_base(struct mdev_state *mdev_state)
}
}
-static ssize_t mdev_access(struct mdev_device *mdev, char *buf, size_t count,
+static ssize_t mdev_access(struct mdev_device *mdev, u8 *buf, size_t count,
loff_t pos, bool is_write)
{
struct mdev_state *mdev_state;
@@ -698,7 +698,7 @@ static ssize_t mdev_access(struct mdev_device *mdev, char *buf, size_t count,
#if defined(DEBUG_REGS)
pr_info("%s: BAR%d WR @0x%llx %s val:0x%02x dlab:%d\n",
__func__, index, offset, wr_reg[offset],
- (u8)*buf, mdev_state->s[index].dlab);
+ *buf, mdev_state->s[index].dlab);
#endif
handle_bar_write(index, mdev_state, offset, buf, count);
} else {
@@ -708,7 +708,7 @@ static ssize_t mdev_access(struct mdev_device *mdev, char *buf, size_t count,
#if defined(DEBUG_REGS)
pr_info("%s: BAR%d RD @0x%llx %s val:0x%02x dlab:%d\n",
__func__, index, offset, rd_reg[offset],
- (u8)*buf, mdev_state->s[index].dlab);
+ *buf, mdev_state->s[index].dlab);
#endif
}
break;
@@ -827,7 +827,7 @@ ssize_t mtty_read(struct mdev_device *mdev, char __user *buf, size_t count,
if (count >= 4 && !(*ppos % 4)) {
u32 val;
- ret = mdev_access(mdev, (char *)&val, sizeof(val),
+ ret = mdev_access(mdev, (u8 *)&val, sizeof(val),
*ppos, false);
if (ret <= 0)
goto read_err;
@@ -839,7 +839,7 @@ ssize_t mtty_read(struct mdev_device *mdev, char __user *buf, size_t count,
} else if (count >= 2 && !(*ppos % 2)) {
u16 val;
- ret = mdev_access(mdev, (char *)&val, sizeof(val),
+ ret = mdev_access(mdev, (u8 *)&val, sizeof(val),
*ppos, false);
if (ret <= 0)
goto read_err;
@@ -851,7 +851,7 @@ ssize_t mtty_read(struct mdev_device *mdev, char __user *buf, size_t count,
} else {
u8 val;
- ret = mdev_access(mdev, (char *)&val, sizeof(val),
+ ret = mdev_access(mdev, (u8 *)&val, sizeof(val),
*ppos, false);
if (ret <= 0)
goto read_err;
@@ -889,7 +889,7 @@ ssize_t mtty_write(struct mdev_device *mdev, const char __user *buf,
if (copy_from_user(&val, buf, sizeof(val)))
goto write_err;
- ret = mdev_access(mdev, (char *)&val, sizeof(val),
+ ret = mdev_access(mdev, (u8 *)&val, sizeof(val),
*ppos, true);
if (ret <= 0)
goto write_err;
@@ -901,7 +901,7 @@ ssize_t mtty_write(struct mdev_device *mdev, const char __user *buf,
if (copy_from_user(&val, buf, sizeof(val)))
goto write_err;
- ret = mdev_access(mdev, (char *)&val, sizeof(val),
+ ret = mdev_access(mdev, (u8 *)&val, sizeof(val),
*ppos, true);
if (ret <= 0)
goto write_err;
@@ -913,7 +913,7 @@ ssize_t mtty_write(struct mdev_device *mdev, const char __user *buf,
if (copy_from_user(&val, buf, sizeof(val)))
goto write_err;
- ret = mdev_access(mdev, (char *)&val, sizeof(val),
+ ret = mdev_access(mdev, (u8 *)&val, sizeof(val),
*ppos, true);
if (ret <= 0)
goto write_err;