Merge tag 'for-linus-6.17-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:
 "Two small cleanups which are both relevant only when running as a Xen
  guest"

* tag 'for-linus-6.17-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  drivers/xen/xenbus: remove quirk for Xen 3.x
  compiler: remove __ADDRESSABLE_ASM{_STR,}() again

Author: torvalds

arch/x86/include/asm/xen/hypercall.h

@@ -94,12 +94,13 @@ DECLARE_STATIC_CALL(xen_hypercall, xen_hypercall_func);
 #ifdef MODULE
 #define __ADDRESSABLE_xen_hypercall
 #else
-#define __ADDRESSABLE_xen_hypercall __ADDRESSABLE_ASM_STR(__SCK__xen_hypercall)
+#define __ADDRESSABLE_xen_hypercall \
+	__stringify(.global STATIC_CALL_KEY(xen_hypercall);)
 #endif
 
 #define __HYPERCALL					\
 	__ADDRESSABLE_xen_hypercall			\
-	"call __SCT__xen_hypercall"
+	__stringify(call STATIC_CALL_TRAMP(xen_hypercall))
 
 #define __HYPERCALL_ENTRY(x)	"a" (x)
 

drivers/xen/xenbus/xenbus_xs.c

@@ -718,36 +718,13 @@ int xs_watch_msg(struct xs_watch_event *event)
 	return 0;
 }
 
-/*
- * Certain older XenBus toolstack cannot handle reading values that are
- * not populated. Some Xen 3.4 installation are incapable of doing this
- * so if we are running on anything older than 4 do not attempt to read
- * control/platform-feature-xs_reset_watches.
- */
-static bool xen_strict_xenbus_quirk(void)
-{
-#ifdef CONFIG_X86
-	uint32_t eax, ebx, ecx, edx, base;
-
-	base = xen_cpuid_base();
-	cpuid(base + 1, &eax, &ebx, &ecx, &edx);
-
-	if ((eax >> 16) < 4)
-		return true;
-#endif
-	return false;
-
-}
 static void xs_reset_watches(void)
 {
 	int err;
 
 	if (!xen_hvm_domain() || xen_initial_domain())
 		return;
 
-	if (xen_strict_xenbus_quirk())
-		return;
-
 	if (!xenbus_read_unsigned("control",
 				  "platform-feature-xs_reset_watches", 0))
 		return;

include/linux/compiler.h

@@ -288,14 +288,6 @@ static inline void *offset_to_ptr(const int *off)
 #define __ADDRESSABLE(sym) \
 	___ADDRESSABLE(sym, __section(".discard.addressable"))
 
-#define __ADDRESSABLE_ASM(sym)						\
-	.pushsection .discard.addressable,"aw";				\
-	.align ARCH_SEL(8,4);						\
-	ARCH_SEL(.quad, .long) __stringify(sym);			\
-	.popsection;
-
-#define __ADDRESSABLE_ASM_STR(sym) __stringify(__ADDRESSABLE_ASM(sym))
-
 /*
  * This returns a constant expression while determining if an argument is
  * a constant expression, most importantly without evaluating the argument.