Replace PAGE_SIZE with HV_HYP_PAGE_SIZE because the guest page size may not be 4096 on all architectures and Hyper-V always runs with a page size of 4096.
Signed-off-by: Maya Nakamura <m.maya.nakam...@gmail.com> Reviewed-by: Michael Kelley <mikel...@microsoft.com> Reviewed-by: Vitaly Kuznetsov <vkuzn...@redhat.com> --- drivers/hv/hyperv_vmbus.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h index 362e70e9d145..019469c3cbca 100644 --- a/drivers/hv/hyperv_vmbus.h +++ b/drivers/hv/hyperv_vmbus.h @@ -192,11 +192,11 @@ int hv_ringbuffer_read(struct vmbus_channel *channel, u64 *requestid, bool raw); /* - * Maximum channels is determined by the size of the interrupt page - * which is PAGE_SIZE. 1/2 of PAGE_SIZE is for send endpoint interrupt - * and the other is receive endpoint interrupt + * Maximum channels, 16348, is determined by the size of the interrupt page, + * which is HV_HYP_PAGE_SIZE. 1/2 of HV_HYP_PAGE_SIZE is to send endpoint + * interrupt, and the other is to receive endpoint interrupt. */ -#define MAX_NUM_CHANNELS ((PAGE_SIZE >> 1) << 3) /* 16348 channels */ +#define MAX_NUM_CHANNELS ((HV_HYP_PAGE_SIZE >> 1) << 3) /* The value here must be in multiple of 32 */ /* TODO: Need to make this configurable */ -- 2.17.1