From: Ofir Bitton <obitton@habana.ai> Date: Wed, 15 Jun 2022 13:11:31 +0000 (+0300) Subject: habanalabs/gaudi: fix shift out of bounds X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b09e5ab18c9f52ff14cf968770e15d5b2dd85c43;p=linux.git habanalabs/gaudi: fix shift out of bounds [ Upstream commit 01622098aeb05a5efbb727199bbc2a4653393255 ] When validating NIC queues, queue offset calculation must be performed only for NIC queues. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c index 14da87b38e835..801acab048ebb 100644 --- a/drivers/misc/habanalabs/gaudi/gaudi.c +++ b/drivers/misc/habanalabs/gaudi/gaudi.c @@ -5744,15 +5744,17 @@ static int gaudi_parse_cb_no_ext_queue(struct hl_device *hdev, { struct asic_fixed_properties *asic_prop = &hdev->asic_prop; struct gaudi_device *gaudi = hdev->asic_specific; - u32 nic_mask_q_id = 1 << (HW_CAP_NIC_SHIFT + - ((parser->hw_queue_id - GAUDI_QUEUE_ID_NIC_0_0) >> 2)); + u32 nic_queue_offset, nic_mask_q_id; if ((parser->hw_queue_id >= GAUDI_QUEUE_ID_NIC_0_0) && - (parser->hw_queue_id <= GAUDI_QUEUE_ID_NIC_9_3) && - (!(gaudi->hw_cap_initialized & nic_mask_q_id))) { - dev_err(hdev->dev, "h/w queue %d is disabled\n", - parser->hw_queue_id); - return -EINVAL; + (parser->hw_queue_id <= GAUDI_QUEUE_ID_NIC_9_3)) { + nic_queue_offset = parser->hw_queue_id - GAUDI_QUEUE_ID_NIC_0_0; + nic_mask_q_id = 1 << (HW_CAP_NIC_SHIFT + (nic_queue_offset >> 2)); + + if (!(gaudi->hw_cap_initialized & nic_mask_q_id)) { + dev_err(hdev->dev, "h/w queue %d is disabled\n", parser->hw_queue_id); + return -EINVAL; + } } /* For internal queue jobs just check if CB address is valid */