Re: [PATCH] hv_sock: fix ARM64 support

[Stefano Garzarella <sgarzare@redhat.com>]

No version number in the subject?

Please next time follow 
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   versions of the patch have been sent out in response to comments 
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On Tue, Apr 28, 2026 at 08:53:39AM -0400, Hamza Mahfooz wrote:
>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>
>---
> net/vmw_vsock/hyperv_transport.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)

Acked-by: Stefano Garzarella <sgarzare@redhat.com>

>
>diff --git a/net/vmw_vsock/hyperv_transport.c b/net/vmw_vsock/hyperv_transport.c
>index 069386a74557..40f09b23efa3 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;
>-- 
>2.54.0
>