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authorMichael Kelley <mikelley@microsoft.com>2023-03-26 16:52:05 +0300
committerWei Liu <wei.liu@kernel.org>2023-04-17 22:19:04 +0300
commit25727aaed6514b88f98a18862c6f2d65a0b0ec3b (patch)
tree626e8292190c145a2155c74574f5a09b0c090f40 /drivers/net/hyperv/hyperv_net.h
parentbb862397f48fc79a1ea31b83a0bd8f1f913b4ab6 (diff)
downloadlinux-25727aaed6514b88f98a18862c6f2d65a0b0ec3b.tar.xz
hv_netvsc: Remove second mapping of send and recv buffers
With changes to how Hyper-V guest VMs flip memory between private (encrypted) and shared (decrypted), creating a second kernel virtual mapping for shared memory is no longer necessary. Everything needed for the transition to shared is handled by set_memory_decrypted(). As such, remove the code to create and manage the second mapping for the pre-allocated send and recv buffers. This mapping is the last user of hv_map_memory()/hv_unmap_memory(), so delete these functions as well. Finally, hv_map_memory() is the last user of vmap_pfn() in Hyper-V guest code, so remove the Kconfig selection of VMAP_PFN. Signed-off-by: Michael Kelley <mikelley@microsoft.com> Reviewed-by: Tianyu Lan <Tianyu.Lan@microsoft.com> Link: https://lore.kernel.org/r/1679838727-87310-11-git-send-email-mikelley@microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'drivers/net/hyperv/hyperv_net.h')
-rw-r--r--drivers/net/hyperv/hyperv_net.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index dd5919ec408b..33d51e363913 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -1139,7 +1139,6 @@ struct netvsc_device {
/* Receive buffer allocated by us but manages by NetVSP */
void *recv_buf;
- void *recv_original_buf;
u32 recv_buf_size; /* allocated bytes */
struct vmbus_gpadl recv_buf_gpadl_handle;
u32 recv_section_cnt;
@@ -1148,7 +1147,6 @@ struct netvsc_device {
/* Send buffer allocated by us */
void *send_buf;
- void *send_original_buf;
u32 send_buf_size;
struct vmbus_gpadl send_buf_gpadl_handle;
u32 send_section_cnt;