Commit fe142626 authored by Thorsten Blum's avatar Thorsten Blum Committed by Wei Liu
Browse files

hyperv: Remove unused union and structs 



The union vmpacket_largest_possible_header and several structs have not
been used for a long time afaict - remove them.

Reviewed-by: default avatarMichael Kelley <mhklinux@outlook.com>
Signed-off-by: default avatarThorsten Blum <thorsten.blum@linux.dev>
Link: https://lore.kernel.org/r/20250311091634.494888-2-thorsten.blum@linux.dev


Signed-off-by: default avatarWei Liu <wei.liu@kernel.org>
Message-ID: <20250311091634.494888-2-thorsten.blum@linux.dev>
parent 461fbbd0

include/linux/hyperv.h

+0 −56
Original line number Diff line number Diff line
@@ -371,19 +371,6 @@ struct vmtransfer_page_packet_header { 
	struct vmtransfer_page_range ranges[];

} __packed;



struct vmgpadl_packet_header {

	struct vmpacket_descriptor d;

	u32 gpadl;

	u32 reserved;

} __packed;



struct vmadd_remove_transfer_page_set {

	struct vmpacket_descriptor d;

	u32 gpadl;

	u16 xfer_pageset_id;

	u16 reserved;

} __packed;



/*

 * This structure defines a range in guest physical space that can be made to

 * look virtually contiguous.
@@ -394,30 +381,6 @@ struct gpa_range { 
	u64 pfn_array[];

};



/*

 * This is the format for an Establish Gpadl packet, which contains a handle by

 * which this GPADL will be known and a set of GPA ranges associated with it.

 * This can be converted to a MDL by the guest OS.  If there are multiple GPA

 * ranges, then the resulting MDL will be "chained," representing multiple VA

 * ranges.

 */

struct vmestablish_gpadl {

	struct vmpacket_descriptor d;

	u32 gpadl;

	u32 range_cnt;

	struct gpa_range range[1];

} __packed;



/*

 * This is the format for a Teardown Gpadl packet, which indicates that the

 * GPADL handle in the Establish Gpadl packet will never be referenced again.

 */

struct vmteardown_gpadl {

	struct vmpacket_descriptor d;

	u32 gpadl;

	u32 reserved;	/* for alignment to a 8-byte boundary */

} __packed;



/*

 * This is the format for a GPA-Direct packet, which contains a set of GPA

 * ranges, in addition to commands and/or data.
@@ -429,25 +392,6 @@ struct vmdata_gpa_direct { 
	struct gpa_range range[1];

} __packed;



/* This is the format for a Additional Data Packet. */

struct vmadditional_data {

	struct vmpacket_descriptor d;

	u64 total_bytes;

	u32 offset;

	u32 byte_cnt;

	unsigned char data[1];

} __packed;



union vmpacket_largest_possible_header {

	struct vmpacket_descriptor simple_hdr;

	struct vmtransfer_page_packet_header xfer_page_hdr;

	struct vmgpadl_packet_header gpadl_hdr;

	struct vmadd_remove_transfer_page_set add_rm_xfer_page_hdr;

	struct vmestablish_gpadl establish_gpadl_hdr;

	struct vmteardown_gpadl teardown_gpadl_hdr;

	struct vmdata_gpa_direct data_gpa_direct_hdr;

};



#define VMPACKET_DATA_START_ADDRESS(__packet)	\

	(void *)(((unsigned char *)__packet) +	\

	 ((struct vmpacket_descriptor)__packet)->offset8 * 8)