diff options
| author | Hamza Mahfooz <hamzamahfooz@linux.microsoft.com> | 2026-04-28 15:53:39 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-04-30 03:30:45 +0300 |
| commit | b31681206e3f527970a7c7ed807fbf6a028fc25b (patch) | |
| tree | ddfd6607f932c271a0d55281b1a894a5052df638 | |
| parent | e73cafaf4acea5445df2e5ee021a335d717c1697 (diff) | |
| download | linux-b31681206e3f527970a7c7ed807fbf6a028fc25b.tar.xz | |
hv_sock: fix ARM64 support
VMBUS ring buffers must be page aligned. Therefore, the current value of
24K presents a challenge on ARM64 kernels (with 64K pages). So, use
VMBUS_RING_SIZE() to ensure they are always aligned and large enough to
hold all of the relevant data.
Cc: stable@vger.kernel.org
Fixes: 77ffe33363c0 ("hv_sock: use HV_HYP_PAGE_SIZE for Hyper-V communication")
Tested-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Hamza Mahfooz <hamzamahfooz@linux.microsoft.com>
Acked-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://patch.msgid.link/20260428125339.13963-1-hamzamahfooz@linux.microsoft.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | net/vmw_vsock/hyperv_transport.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/vmw_vsock/hyperv_transport.c b/net/vmw_vsock/hyperv_transport.c index f862988c1e86..7a8963595bf9 100644 --- a/net/vmw_vsock/hyperv_transport.c +++ b/net/vmw_vsock/hyperv_transport.c @@ -375,10 +375,10 @@ static void hvs_open_connection(struct vmbus_channel *chan) } else { sndbuf = max_t(int, sk->sk_sndbuf, RINGBUFFER_HVS_SND_SIZE); sndbuf = min_t(int, sndbuf, RINGBUFFER_HVS_MAX_SIZE); - sndbuf = ALIGN(sndbuf, HV_HYP_PAGE_SIZE); + sndbuf = VMBUS_RING_SIZE(sndbuf); rcvbuf = max_t(int, sk->sk_rcvbuf, RINGBUFFER_HVS_RCV_SIZE); rcvbuf = min_t(int, rcvbuf, RINGBUFFER_HVS_MAX_SIZE); - rcvbuf = ALIGN(rcvbuf, HV_HYP_PAGE_SIZE); + rcvbuf = VMBUS_RING_SIZE(rcvbuf); } chan->max_pkt_size = HVS_MAX_PKT_SIZE; |