x86: Fix compile problem with kernel 5.10.211

Fix a compile problem in upstream kernel.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

diff --git a/target/linux/x86/patches-5.10/020-x86-Fix-compile-problem.patch b/target/linux/x86/patches-5.10/020-x86-Fix-compile-problem.patch
new file mode 100644 (file)
index 0000000..ad33085
--- /dev/null
+++ b/target/linux/x86/patches-5.10/020-x86-Fix-compile-problem.patch
@@ -0,0 +1,40 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sun, 3 Mar 2024 19:57:11 +0100
+Subject: x86: Fix compile problem
+
+This fixes the following compile problem:
+  CC      arch/x86/kernel/paravirt.o
+arch/x86/kernel/paravirt.c: In function 'paravirt_patch_call':
+arch/x86/kernel/paravirt.c:65:9: error: implicit declaration of function '__text_gen_insn' [-Werror=implicit-function-declaration]
+   65 |         __text_gen_insn(insn_buff, CALL_INSN_OPCODE,
+      |         ^~~~~~~~~~~~~~~
+arch/x86/kernel/paravirt.c:65:36: error: 'CALL_INSN_OPCODE' undeclared (first use in this function)
+   65 |         __text_gen_insn(insn_buff, CALL_INSN_OPCODE,
+      |                                    ^~~~~~~~~~~~~~~~
+arch/x86/kernel/paravirt.c:65:36: note: each undeclared identifier is reported only once for each function it appears in
+arch/x86/kernel/paravirt.c:66:47: error: 'CALL_INSN_SIZE' undeclared (first use in this function)
+   66 |                         (void *)addr, target, CALL_INSN_SIZE);
+      |                                               ^~~~~~~~~~~~~~
+arch/x86/kernel/paravirt.c:68:1: error: control reaches end of non-void function [-Werror=return-type]
+   68 | }
+      | ^
+cc1: some warnings being treated as errors
+make[7]: *** [scripts/Makefile.build:286: arch/x86/kernel/paravirt.o] Error 1
+
+Fixes: b253061d4b86 ("x86/ibt,paravirt: Use text_gen_insn() for paravirt_patch()")
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+---
+ arch/x86/kernel/paravirt.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/arch/x86/kernel/paravirt.c
++++ b/arch/x86/kernel/paravirt.c
+@@ -14,6 +14,7 @@
+ #include <linux/highmem.h>
+ #include <linux/kprobes.h>
+ #include <linux/pgtable.h>
++#include <linux/static_call.h>
+ 
+ #include <asm/bug.h>
+ #include <asm/paravirt.h>