diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/809-jailhouse-0010-ivshmem-net-Switch-to-relative-descriptor-addresses.patch')
-rw-r--r-- | target/linux/layerscape/patches-5.4/809-jailhouse-0010-ivshmem-net-Switch-to-relative-descriptor-addresses.patch | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/target/linux/layerscape/patches-5.4/809-jailhouse-0010-ivshmem-net-Switch-to-relative-descriptor-addresses.patch b/target/linux/layerscape/patches-5.4/809-jailhouse-0010-ivshmem-net-Switch-to-relative-descriptor-addresses.patch deleted file mode 100644 index a2554c7166..0000000000 --- a/target/linux/layerscape/patches-5.4/809-jailhouse-0010-ivshmem-net-Switch-to-relative-descriptor-addresses.patch +++ /dev/null @@ -1,45 +0,0 @@ -From dd462c6eb2ba6af01ae38644183216c4d5603d90 Mon Sep 17 00:00:00 2001 -From: Jan Kiszka <jan.kiszka@siemens.com> -Date: Tue, 3 Jan 2017 08:50:01 +0100 -Subject: [PATCH] ivshmem-net: Switch to relative descriptor addresses - -Make sure that we do not depend on identity-mapped shared memory -regions. - -This also fixes an off-by-one in the range check of ivshm_net_desc_data. - -Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> -(cherry picked from commit fe9c9dd6373892591a7d6b165c3c43045eb349c1) ---- - drivers/net/ivshmem-net.c | 8 ++++---- - 1 file changed, 4 insertions(+), 4 deletions(-) - ---- a/drivers/net/ivshmem-net.c -+++ b/drivers/net/ivshmem-net.c -@@ -123,14 +123,14 @@ static void *ivshm_net_desc_data(struct - struct vring_desc *desc, - u32 *len) - { -- u64 addr = READ_ONCE(desc->addr); -+ u64 offs = READ_ONCE(desc->addr); - u32 dlen = READ_ONCE(desc->len); - void *data; - -- if (addr < in->shmaddr || desc->addr > in->shmaddr + in->shmlen) -+ if (offs >= in->shmlen) - return NULL; - -- data = in->shm + (addr - in->shmaddr); -+ data = in->shm + offs; - - if (data < q->data || data >= q->end) - return NULL; -@@ -317,7 +317,7 @@ static int ivshm_net_tx_frame(struct net - buf = tx->data + head; - skb_copy_and_csum_dev(skb, buf); - -- desc->addr = in->shmaddr + (buf - in->shm); -+ desc->addr = buf - in->shm; - desc->len = skb->len; - - avail = tx->last_avail_idx++ & (vr->num - 1); |