diff options
Diffstat (limited to 'samples/vfio-mdev')
| -rw-r--r-- | samples/vfio-mdev/mtty.c | 39 |
1 files changed, 8 insertions, 31 deletions
diff --git a/samples/vfio-mdev/mtty.c b/samples/vfio-mdev/mtty.c index 92e770a06ea2..ce84a300a4da 100644 --- a/samples/vfio-mdev/mtty.c +++ b/samples/vfio-mdev/mtty.c @@ -152,20 +152,9 @@ static const struct file_operations vd_fops = { /* function prototypes */ -static int mtty_trigger_interrupt(const guid_t *uuid); +static int mtty_trigger_interrupt(struct mdev_state *mdev_state); /* Helper functions */ -static struct mdev_state *find_mdev_state_by_uuid(const guid_t *uuid) -{ - struct mdev_state *mds; - - list_for_each_entry(mds, &mdev_devices_list, next) { - if (guid_equal(mdev_uuid(mds->mdev), uuid)) - return mds; - } - - return NULL; -} static void dump_buffer(u8 *buf, uint32_t count) { @@ -337,8 +326,7 @@ static void handle_bar_write(unsigned int index, struct mdev_state *mdev_state, pr_err("Serial port %d: Fifo level trigger\n", index); #endif - mtty_trigger_interrupt( - mdev_uuid(mdev_state->mdev)); + mtty_trigger_interrupt(mdev_state); } } else { #if defined(DEBUG_INTR) @@ -352,8 +340,7 @@ static void handle_bar_write(unsigned int index, struct mdev_state *mdev_state, */ if (mdev_state->s[index].uart_reg[UART_IER] & UART_IER_RLSI) - mtty_trigger_interrupt( - mdev_uuid(mdev_state->mdev)); + mtty_trigger_interrupt(mdev_state); } mutex_unlock(&mdev_state->rxtx_lock); break; @@ -372,8 +359,7 @@ static void handle_bar_write(unsigned int index, struct mdev_state *mdev_state, pr_err("Serial port %d: IER_THRI write\n", index); #endif - mtty_trigger_interrupt( - mdev_uuid(mdev_state->mdev)); + mtty_trigger_interrupt(mdev_state); } mutex_unlock(&mdev_state->rxtx_lock); @@ -444,7 +430,7 @@ static void handle_bar_write(unsigned int index, struct mdev_state *mdev_state, #if defined(DEBUG_INTR) pr_err("Serial port %d: MCR_OUT2 write\n", index); #endif - mtty_trigger_interrupt(mdev_uuid(mdev_state->mdev)); + mtty_trigger_interrupt(mdev_state); } if ((mdev_state->s[index].uart_reg[UART_IER] & UART_IER_MSI) && @@ -452,7 +438,7 @@ static void handle_bar_write(unsigned int index, struct mdev_state *mdev_state, #if defined(DEBUG_INTR) pr_err("Serial port %d: MCR RTS/DTR write\n", index); #endif - mtty_trigger_interrupt(mdev_uuid(mdev_state->mdev)); + mtty_trigger_interrupt(mdev_state); } break; @@ -503,8 +489,7 @@ static void handle_bar_read(unsigned int index, struct mdev_state *mdev_state, #endif if (mdev_state->s[index].uart_reg[UART_IER] & UART_IER_THRI) - mtty_trigger_interrupt( - mdev_uuid(mdev_state->mdev)); + mtty_trigger_interrupt(mdev_state); } mutex_unlock(&mdev_state->rxtx_lock); @@ -1028,17 +1013,9 @@ static int mtty_set_irqs(struct mdev_device *mdev, uint32_t flags, return ret; } -static int mtty_trigger_interrupt(const guid_t *uuid) +static int mtty_trigger_interrupt(struct mdev_state *mdev_state) { int ret = -1; - struct mdev_state *mdev_state; - - mdev_state = find_mdev_state_by_uuid(uuid); - - if (!mdev_state) { - pr_info("%s: mdev not found\n", __func__); - return -EINVAL; - } if ((mdev_state->irq_index == VFIO_PCI_MSI_IRQ_INDEX) && (!mdev_state->msi_evtfd)) |