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authorThorsten Blum <thorsten.blum@linux.dev>2025-01-16 22:19:32 +0100
committerJakub Kicinski <kuba@kernel.org>2025-01-17 19:07:48 -0800
commit3df22e75102785bac1768f7eeabbc45c01a6e7f4 (patch)
treed72b4364be34d19e1a6628b33e415ddc5cbf9d05 /drivers/net/hyperv
parent2ce7289f180d68cfa9a04a28581e88c864abff9c (diff)
hv_netvsc: Replace one-element array with flexible array member
Replace the deprecated one-element array with a modern flexible array member in the struct nvsp_1_message_send_receive_buffer_complete. Use struct_size_t(,,1) instead of sizeof() to maintain the same size. Compile-tested only. Link: https://github.com/KSPP/linux/issues/79 Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Tested-by: Roman Kisel <romank@linux.microsoft.com> Reviewed-by: Roman Kisel <romank@linux.microsoft.com> Link: https://patch.msgid.link/20250116211932.139564-2-thorsten.blum@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/hyperv')
-rw-r--r--drivers/net/hyperv/hyperv_net.h2
-rw-r--r--drivers/net/hyperv/netvsc.c3
2 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index e690b95b1bbb..234db693cefa 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -464,7 +464,7 @@ struct nvsp_1_message_send_receive_buffer_complete {
* LargeOffset SmallOffset
*/
- struct nvsp_1_receive_buffer_section sections[1];
+ struct nvsp_1_receive_buffer_section sections[];
} __packed;
/*
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 9afb08dbc350..d6f5b9ea3109 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -866,7 +866,8 @@ static void netvsc_send_completion(struct net_device *ndev,
case NVSP_MSG1_TYPE_SEND_RECV_BUF_COMPLETE:
if (msglen < sizeof(struct nvsp_message_header) +
- sizeof(struct nvsp_1_message_send_receive_buffer_complete)) {
+ struct_size_t(struct nvsp_1_message_send_receive_buffer_complete,
+ sections, 1)) {
netdev_err(ndev, "nvsp_msg1 length too small: %u\n",
msglen);
return;