From: Neil Turton <nturton@xxxxxxxxxxxxxx> commit a7ebd27a13757248863cd61e541af7fa9e7727ee upstream We need buffer->len to remain valid to work out the correct address to be unmapped. We therefore need to clear buffer->len after the unmap operation. Signed-off-by: Ben Hutchings <bhutchings@xxxxxxxxxxxxxx> --- This applies to 2.6.31 and .32 with harmless fuzz. For 2.6.27, change 'true' to '1' before applying. Ben. drivers/net/sfc/tx.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/sfc/tx.c b/drivers/net/sfc/tx.c index e669f94..a8b70ef 100644 --- a/drivers/net/sfc/tx.c +++ b/drivers/net/sfc/tx.c @@ -821,8 +821,6 @@ static void efx_enqueue_unwind(struct efx_tx_queue *tx_queue) EFX_TXQ_MASK]; efx_tsoh_free(tx_queue, buffer); EFX_BUG_ON_PARANOID(buffer->skb); - buffer->len = 0; - buffer->continuation = true; if (buffer->unmap_len) { unmap_addr = (buffer->dma_addr + buffer->len - buffer->unmap_len); @@ -836,6 +834,8 @@ static void efx_enqueue_unwind(struct efx_tx_queue *tx_queue) PCI_DMA_TODEVICE); buffer->unmap_len = 0; } + buffer->len = 0; + buffer->continuation = true; } } -- 1.5.5 -- Ben Hutchings, Senior Software Engineer, Solarflare Communications Not speaking for my employer; that's the marketing department's job. They asked us to note that Solarflare product names are trademarked. -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html