diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2013-08-21 14:44:54 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2013-08-21 14:44:54 +0200 |
| commit | fac778a2b8d6ca953d440baeee72901c2dd5aad9 (patch) | |
| tree | c43d780b5ff8819f4353b16c99601c5ceeeacad7 /drivers/firewire | |
| parent | 07862c1cd6675cde2dd4bd64e64d704ea2185b79 (diff) | |
| parent | 94fc5d9de5bd757ad46f0d94bc4ebf617c4487f6 (diff) | |
Merge branch 'linus' into timers/core
Reason: Get upstream changes on which new patches depend on.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/firewire')
| -rw-r--r-- | drivers/firewire/core-cdev.c | 3 | ||||
| -rw-r--r-- | drivers/firewire/ohci.c | 10 |
2 files changed, 11 insertions, 2 deletions
diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c index 7ef316fdc4d..ac1b43a0428 100644 --- a/drivers/firewire/core-cdev.c +++ b/drivers/firewire/core-cdev.c @@ -54,6 +54,7 @@ #define FW_CDEV_KERNEL_VERSION 5 #define FW_CDEV_VERSION_EVENT_REQUEST2 4 #define FW_CDEV_VERSION_ALLOCATE_REGION_END 4 +#define FW_CDEV_VERSION_AUTO_FLUSH_ISO_OVERFLOW 5 struct client { u32 version; @@ -1005,6 +1006,8 @@ static int ioctl_create_iso_context(struct client *client, union ioctl_arg *arg) a->channel, a->speed, a->header_size, cb, client); if (IS_ERR(context)) return PTR_ERR(context); + if (client->version < FW_CDEV_VERSION_AUTO_FLUSH_ISO_OVERFLOW) + context->drop_overflow_headers = true; /* We only support one context at this time. */ spin_lock_irq(&client->lock); diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c index 9e1db6490b9..afb701ec90c 100644 --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -2749,8 +2749,11 @@ static void copy_iso_headers(struct iso_context *ctx, const u32 *dma_hdr) { u32 *ctx_hdr; - if (ctx->header_length + ctx->base.header_size > PAGE_SIZE) + if (ctx->header_length + ctx->base.header_size > PAGE_SIZE) { + if (ctx->base.drop_overflow_headers) + return; flush_iso_completions(ctx); + } ctx_hdr = ctx->header + ctx->header_length; ctx->last_timestamp = (u16)le32_to_cpu((__force __le32)dma_hdr[0]); @@ -2910,8 +2913,11 @@ static int handle_it_packet(struct context *context, sync_it_packet_for_cpu(context, d); - if (ctx->header_length + 4 > PAGE_SIZE) + if (ctx->header_length + 4 > PAGE_SIZE) { + if (ctx->base.drop_overflow_headers) + return 1; flush_iso_completions(ctx); + } ctx_hdr = ctx->header + ctx->header_length; ctx->last_timestamp = le16_to_cpu(last->res_count); |