We don't really need such a big on-stack buffer.
vmbus_sendpacket() here only uses sizeof(struct pci_child_message).
Signed-off-by: Dexuan Cui <decui@xxxxxxxxxxxxx>
CC: Jake Oshins <jakeo@xxxxxxxxxxxxx>
Cc: KY Srinivasan <kys@xxxxxxxxxxxxx>
CC: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
CC: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
---
drivers/pci/host/pci-hyperv.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/pci/host/pci-hyperv.c b/drivers/pci/host/pci-hyperv.c
index 763ff87..93ed64a 100644
--- a/drivers/pci/host/pci-hyperv.c
+++ b/drivers/pci/host/pci-hyperv.c
@@ -1271,9 +1271,9 @@ static struct hv_pci_dev *new_pcichild_device(struct hv_pcibus_device *hbus,
struct hv_pci_dev *hpdev;
struct pci_child_message *res_req;
struct q_res_req_compl comp_pkt;
- union {
- struct pci_packet init_packet;
- u8 buffer[0x100];
+ struct {
+ struct pci_packet init_packet;
+ u8 buffer[sizeof(struct pci_child_message)];
} pkt;
unsigned long flags;
int ret;
--
2.7.4
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