linux6.8: update to 6.8.2, backport fix for kexec regression

srcpkgs/linux6.8/patches/revert-gbpages.patch

@@ -0,0 +1,75 @@
+From c567f2948f57bdc03ed03403ae0234085f376b7d Mon Sep 17 00:00:00 2001
+From: Ingo Molnar <mingo@kernel.org>
+Date: Mon, 25 Mar 2024 11:47:51 +0100
+Subject: Revert "x86/mm/ident_map: Use gbpages only where full GB page should
+ be mapped."
+
+This reverts commit d794734c9bbfe22f86686dc2909c25f5ffe1a572.
+
+While the original change tries to fix a bug, it also unintentionally broke
+existing systems, see the regressions reported at:
+
+  https://lore.kernel.org/all/3a1b9909-45ac-4f97-ad68-d16ef1ce99db@pavinjoseph.com/
+
+Since d794734c9bbf was also marked for -stable, let's back it out before
+causing more damage.
+
+Note that due to another upstream change the revert was not 100% automatic:
+
+  0a845e0f6348 mm/treewide: replace pud_large() with pud_leaf()
+
+Signed-off-by: Ingo Molnar <mingo@kernel.org>
+Cc: <stable@vger.kernel.org>
+Cc: Russ Anderson <rja@hpe.com>
+Cc: Steve Wahl <steve.wahl@hpe.com>
+Cc: Dave Hansen <dave.hansen@linux.intel.com>
+Link: https://lore.kernel.org/all/3a1b9909-45ac-4f97-ad68-d16ef1ce99db@pavinjoseph.com/
+Fixes: d794734c9bbf ("x86/mm/ident_map: Use gbpages only where full GB page should be mapped.")
+---
+ arch/x86/mm/ident_map.c | 23 +++++------------------
+ 1 file changed, 5 insertions(+), 18 deletions(-)
+
+diff --git a/arch/x86/mm/ident_map.c b/arch/x86/mm/ident_map.c
+index a204a332c71fc5..968d7005f4a724 100644
+--- a/arch/x86/mm/ident_map.c
++++ b/arch/x86/mm/ident_map.c
+@@ -26,31 +26,18 @@ static int ident_pud_init(struct x86_mapping_info *info, pud_t *pud_page,
+ 	for (; addr < end; addr = next) {
+ 		pud_t *pud = pud_page + pud_index(addr);
+ 		pmd_t *pmd;
+-		bool use_gbpage;
+
+ 		next = (addr & PUD_MASK) + PUD_SIZE;
+ 		if (next > end)
+ 			next = end;
+
+-		/* if this is already a gbpage, this portion is already mapped */
+-		if (pud_large(*pud))
+-			continue;
+-
+-		/* Is using a gbpage allowed? */
+-		use_gbpage = info->direct_gbpages;
+-
+-		/* Don't use gbpage if it maps more than the requested region. */
+-		/* at the begining: */
+-		use_gbpage &= ((addr & ~PUD_MASK) == 0);
+-		/* ... or at the end: */
+-		use_gbpage &= ((next & ~PUD_MASK) == 0);
+-
+-		/* Never overwrite existing mappings */
+-		use_gbpage &= !pud_present(*pud);
+-
+-		if (use_gbpage) {
++		if (info->direct_gbpages) {
+ 			pud_t pudval;
+
++			if (pud_present(*pud))
++				continue;
++
++			addr &= PUD_MASK;
+ 			pudval = __pud((addr - info->offset) | info->page_flag);
+ 			set_pud(pud, pudval);
+ 			continue;
+-- 
+cgit 1.2.3-korg
+

srcpkgs/linux6.8/template

@@ -1,6 +1,6 @@
 # Template file for 'linux6.8'
 pkgname=linux6.8
-version=6.8.1
+version=6.8.2
 revision=1
 short_desc="Linux kernel and modules (${version%.*} series)"
 maintainer="Duncaen <duncaen@voidlinux.org>"
@@ -14,7 +14,7 @@ if [ "${version##*.}" != 0 ]; then
 fi
 
 checksum="c969dea4e8bb6be991bbf7c010ba0e0a5643a3a8d8fb0a2aaa053406f1e965f3
- dfdfbf3045be48db3b99038a72eb2e6906a31dc11672230b4f45597de2e8cf11"
+ 1d190147d8eee0313f0ea1e565070fc4f88db9c20e9d85dc0c6b9ad62a69b3fa"
 python_version=3
 
 # XXX Restrict archs until a proper <arch>-dotconfig is available in FILESDIR.