Linux 5.19 compat: asm/fpu/internal.h

As of the Linux 5.19 the asm/fpu/internal.h header is empty, it
was therefore removed and there's no reason to include it.

Signed-off-by: Brian Behlendorf <[email protected]>

Author: behlendorf

config/kernel-fpu.m4

@@ -27,18 +27,32 @@ AC_DEFUN([ZFS_AC_KERNEL_FPU_HEADER], [
 	],[
 		AC_DEFINE(HAVE_KERNEL_FPU_API_HEADER, 1,
 		    [kernel has asm/fpu/api.h])
-		AC_MSG_RESULT(asm/fpu/api.h)
+
+		ZFS_LINUX_TRY_COMPILE([
+			#include <linux/module.h>
+			#include <asm/fpu/internal.h>
+		],[
+		],[
+			AC_DEFINE(HAVE_KERNEL_FPU_INTERNAL_HEADER, 1,
+			    [kernel has asm/internal/api.h])
+			AC_MSG_RESULT([asm/fpu/api.h asm/fpu/internal.h])
+		],[
+			AC_MSG_RESULT([asm/fpu/api.h])
+		])
 	],[
-		AC_MSG_RESULT(i387.h)
+		AC_MSG_RESULT([i387.h])
 	])
+
 ])
 
 AC_DEFUN([ZFS_AC_KERNEL_SRC_FPU], [
 	ZFS_LINUX_TEST_SRC([kernel_fpu], [
 		#include <linux/types.h>
 		#ifdef HAVE_KERNEL_FPU_API_HEADER
 		#include <asm/fpu/api.h>
+		#ifdef HAVE_KERNEL_FPU_INTERNAL_HEADER
 		#include <asm/fpu/internal.h>
+		#endif
 		#else
 		#include <asm/i387.h>
 		#endif
@@ -51,7 +65,9 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_FPU], [
 		#include <linux/types.h>
 		#ifdef HAVE_KERNEL_FPU_API_HEADER
 		#include <asm/fpu/api.h>
+		#ifdef HAVE_KERNEL_FPU_INTERNAL_HEADER
 		#include <asm/fpu/internal.h>
+		#endif
 		#else
 		#include <asm/i387.h>
 		#endif

include/os/linux/kernel/linux/simd_x86.h

@@ -93,7 +93,9 @@
 
 #if defined(HAVE_KERNEL_FPU_API_HEADER)
 #include <asm/fpu/api.h>
+#if defined(HAVE_KERNEL_FPU_INTERNAL_HEADER)
 #include <asm/fpu/internal.h>
+#endif
 #else
 #include <asm/i387.h>
 #endif