This is a note to let you know that I've just added the patch titled
NTB: Remove _addr functions from ntb_hw_amd
to the 4.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ntb-remove-_addr-functions-from-ntb_hw_amd.patch
and it can be found in the queue-4.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 4f1b50c3e3082b31c94cee2b897bd9f5d0f3e7c8 Mon Sep 17 00:00:00 2001
From: Allen Hubbe <Allen.Hubbe@xxxxxxx>
Date: Mon, 21 Mar 2016 04:53:14 -0400
Subject: NTB: Remove _addr functions from ntb_hw_amd
From: Allen Hubbe <Allen.Hubbe@xxxxxxx>
commit 4f1b50c3e3082b31c94cee2b897bd9f5d0f3e7c8 upstream.
Kernel zero day testing warned about address space confusion. A virtual
iomem address was used where a physical address is expected. The
offending functions implement an optional part of the api, so they are
removed. They can be added later, after testing.
Fixes: a1b3695820aa490e58915d720a1438069813008b
Signed-off-by: Allen Hubbe <Allen.Hubbe@xxxxxxx>
Acked-by: Xiangliang Yu <Xiangliang.Yu@xxxxxxx>
Signed-off-by: Jon Mason <jdmason@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/ntb/hw/amd/ntb_hw_amd.c | 30 ------------------------------
1 file changed, 30 deletions(-)
--- a/drivers/ntb/hw/amd/ntb_hw_amd.c
+++ b/drivers/ntb/hw/amd/ntb_hw_amd.c
@@ -357,20 +357,6 @@ static int amd_ntb_db_clear_mask(struct
return 0;
}
-static int amd_ntb_peer_db_addr(struct ntb_dev *ntb,
- phys_addr_t *db_addr,
- resource_size_t *db_size)
-{
- struct amd_ntb_dev *ndev = ntb_ndev(ntb);
-
- if (db_addr)
- *db_addr = (phys_addr_t)(ndev->peer_mmio + AMD_DBREQ_OFFSET);
- if (db_size)
- *db_size = sizeof(u32);
-
- return 0;
-}
-
static int amd_ntb_peer_db_set(struct ntb_dev *ntb, u64 db_bits)
{
struct amd_ntb_dev *ndev = ntb_ndev(ntb);
@@ -415,20 +401,6 @@ static int amd_ntb_spad_write(struct ntb
return 0;
}
-static int amd_ntb_peer_spad_addr(struct ntb_dev *ntb, int idx,
- phys_addr_t *spad_addr)
-{
- struct amd_ntb_dev *ndev = ntb_ndev(ntb);
-
- if (idx < 0 || idx >= ndev->spad_count)
- return -EINVAL;
-
- if (spad_addr)
- *spad_addr = (phys_addr_t)(ndev->self_mmio + AMD_SPAD_OFFSET +
- ndev->peer_spad + (idx << 2));
- return 0;
-}
-
static u32 amd_ntb_peer_spad_read(struct ntb_dev *ntb, int idx)
{
struct amd_ntb_dev *ndev = ntb_ndev(ntb);
@@ -472,12 +444,10 @@ static const struct ntb_dev_ops amd_ntb_
.db_clear = amd_ntb_db_clear,
.db_set_mask = amd_ntb_db_set_mask,
.db_clear_mask = amd_ntb_db_clear_mask,
- .peer_db_addr = amd_ntb_peer_db_addr,
.peer_db_set = amd_ntb_peer_db_set,
.spad_count = amd_ntb_spad_count,
.spad_read = amd_ntb_spad_read,
.spad_write = amd_ntb_spad_write,
- .peer_spad_addr = amd_ntb_peer_spad_addr,
.peer_spad_read = amd_ntb_peer_spad_read,
.peer_spad_write = amd_ntb_peer_spad_write,
};
Patches currently in stable-queue which might be from Allen.Hubbe@xxxxxxx are
queue-4.5/ntb-remove-_addr-functions-from-ntb_hw_amd.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html