public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Oded Gabbay <oded.gabbay@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: gregkh@linuxfoundation.org, Dalit Ben Zoor <dbenzoor@habana.ai>
Subject: [PATCH 2/3] habanalabs: remove condition that is always true
Date: Wed,  1 May 2019 20:44:39 +0300	[thread overview]
Message-ID: <20190501174440.28557-2-oded.gabbay@gmail.com> (raw)
In-Reply-To: <20190501174440.28557-1-oded.gabbay@gmail.com>

From: Dalit Ben Zoor <dbenzoor@habana.ai>

After removing the parsing of the command submission
when doing memset of the device memory, goya_validate_dma_pkt_host
is never called by the kernel, so there is no need to check
context id.

Signed-off-by: Dalit Ben Zoor <dbenzoor@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
---
 drivers/misc/habanalabs/goya/goya.c | 48 ++++++++++++++---------------
 1 file changed, 23 insertions(+), 25 deletions(-)

diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index ba6790f9ec6b..9bf572a2d292 100644
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -3213,31 +3213,29 @@ static int goya_validate_dma_pkt_host(struct hl_device *hdev,
 		return -EFAULT;
 	}
 
-	if (parser->ctx_id != HL_KERNEL_ASID_ID) {
-		if (sram_addr) {
-			if (!hl_mem_area_inside_range(device_memory_addr,
-					le32_to_cpu(user_dma_pkt->tsize),
-					hdev->asic_prop.sram_user_base_address,
-					hdev->asic_prop.sram_end_address)) {
-
-				dev_err(hdev->dev,
-					"SRAM address 0x%llx + 0x%x is invalid\n",
-					device_memory_addr,
-					user_dma_pkt->tsize);
-				return -EFAULT;
-			}
-		} else {
-			if (!hl_mem_area_inside_range(device_memory_addr,
-					le32_to_cpu(user_dma_pkt->tsize),
-					hdev->asic_prop.dram_user_base_address,
-					hdev->asic_prop.dram_end_address)) {
-
-				dev_err(hdev->dev,
-					"DRAM address 0x%llx + 0x%x is invalid\n",
-					device_memory_addr,
-					user_dma_pkt->tsize);
-				return -EFAULT;
-			}
+	if (sram_addr) {
+		if (!hl_mem_area_inside_range(device_memory_addr,
+				le32_to_cpu(user_dma_pkt->tsize),
+				hdev->asic_prop.sram_user_base_address,
+				hdev->asic_prop.sram_end_address)) {
+
+			dev_err(hdev->dev,
+				"SRAM address 0x%llx + 0x%x is invalid\n",
+				device_memory_addr,
+				user_dma_pkt->tsize);
+			return -EFAULT;
+		}
+	} else {
+		if (!hl_mem_area_inside_range(device_memory_addr,
+				le32_to_cpu(user_dma_pkt->tsize),
+				hdev->asic_prop.dram_user_base_address,
+				hdev->asic_prop.dram_end_address)) {
+
+			dev_err(hdev->dev,
+				"DRAM address 0x%llx + 0x%x is invalid\n",
+				device_memory_addr,
+				user_dma_pkt->tsize);
+			return -EFAULT;
 		}
 	}
 
-- 
2.17.1


  reply	other threads:[~2019-05-01 17:44 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-01 17:44 [PATCH 1/3] habanalabs: remove redundant member from parser struct Oded Gabbay
2019-05-01 17:44 ` Oded Gabbay [this message]
2019-05-01 17:44 ` [PATCH 3/3] habanalabs: increase timeout if working with simulator Oded Gabbay

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190501174440.28557-2-oded.gabbay@gmail.com \
    --to=oded.gabbay@gmail.com \
    --cc=dbenzoor@habana.ai \
    --cc=gregkh@linuxfoundation.org \
    --cc=linux-kernel@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox