Update Linux headers from v5.10.5 to v6.6

This patch imports the Linux kernel from v5.10.5 to v6.6.
Important RISC-V specific changes are:
* hwprobe support
* V support (ptrace and prctl calls)
* KVM support

There are patches on the glibc list that introduce code which uses the
hwprobe interface. Let's update the kernel headers to be ready for these
changes.

Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>

1 files changed, 12 insertions, 1 deletions

diff --git a/linux-headers/include/linux/hyperv.h b/linux-headers/include/linux/hyperv.h
index af92307..d95359e 100644
--- a/linux-headers/include/linux/hyperv.h
+++ b/linux-headers/include/linux/hyperv.h
@@ -26,7 +26,7 @@
 #ifndef _HYPERV_H
 #define _HYPERV_H
 
-#include <linux/uuid.h>
+#include <linux/types.h>
 
 /*
  * Framework version for util services.
@@ -90,6 +90,17 @@ struct hv_vss_check_dm_info {
 	__u32 flags;
 } __attribute__((packed));
 
+/*
+ * struct hv_vss_msg encodes the fields that the Linux VSS
+ * driver accesses. However, FREEZE messages from Hyper-V contain
+ * additional LUN information that Linux doesn't use and are not
+ * represented in struct hv_vss_msg. A received FREEZE message may
+ * be as large as 6,260 bytes, so the driver must allocate at least
+ * that much space, not sizeof(struct hv_vss_msg). Other messages
+ * such as AUTO_RECOVER may be as large as 12,500 bytes. However,
+ * because the Linux VSS driver responds that it doesn't support
+ * auto-recovery, it should not receive such messages.
+ */
 struct hv_vss_msg {
 	union {
 		struct hv_vss_hdr vss_hdr;