aarch64-disable-neon.patch

aarch64-disable-neon.patch

Source: https://raw.githubusercontent.com/chimera-linux/cports/master/main/zfs/patches/aarch64-disable-neon.patch (no longer available)

ERROR: modpost: GPL-incompatible module zfs.ko uses GPL-only symbol 'kernel_neon_begin'
ERROR: modpost: GPL-incompatible module zfs.ko uses GPL-only symbol 'kernel_neon_end'

There is no way around this so just disable all zfs kernel SIMD on aarch64
for the time being.

diff --git a/include/os/linux/kernel/linux/simd.h b/include/os/linux/kernel/linux/simd.h
index f4376b2..02f8110 100644
--- a/include/os/linux/kernel/linux/simd.h
+++ b/include/os/linux/kernel/linux/simd.h
@@ -31,9 +31,6 @@
 #elif defined(__arm__)
 #include <linux/simd_arm.h>
 
-#elif defined(__aarch64__)
-#include <linux/simd_aarch64.h>
-
 #elif defined(__powerpc__)
 #include <linux/simd_powerpc.h>
 
diff --git a/module/Kbuild.in b/module/Kbuild.in
index 4395938..dc991b6 100644
--- a/module/Kbuild.in
+++ b/module/Kbuild.in
@@ -169,7 +169,6 @@ zfs-$(CONFIG_X86)    += $(addprefix icp/,$(ICP_OBJS_X86))
 zfs-$(CONFIG_UML_X86)+= $(addprefix icp/,$(ICP_OBJS_X86))
 zfs-$(CONFIG_X86_64) += $(addprefix icp/,$(ICP_OBJS_X86_64))
 zfs-$(CONFIG_ARM)    += $(addprefix icp/,$(ICP_OBJS_ARM))
-zfs-$(CONFIG_ARM64)  += $(addprefix icp/,$(ICP_OBJS_ARM64))
 zfs-$(CONFIG_PPC)    += $(addprefix icp/,$(ICP_OBJS_PPC_PPC64))
 zfs-$(CONFIG_PPC64)  += $(addprefix icp/,$(ICP_OBJS_PPC_PPC64))
 
@@ -257,7 +256,6 @@ ZCOMMON_OBJS_ARM64 := \
 zfs-objs            += $(addprefix zcommon/,$(ZCOMMON_OBJS))
 zfs-$(CONFIG_X86)   += $(addprefix zcommon/,$(ZCOMMON_OBJS_X86))
 zfs-$(CONFIG_UML_X86)+= $(addprefix zcommon/,$(ZCOMMON_OBJS_X86))
-zfs-$(CONFIG_ARM64) += $(addprefix zcommon/,$(ZCOMMON_OBJS_ARM64))
 
 
 # Zstd uses -O3 by default, so we should follow
@@ -484,7 +482,6 @@ ZFS_OBJS_PPC_PPC64 := \
 zfs-objs            += $(addprefix zfs/,$(ZFS_OBJS)) $(addprefix os/linux/zfs/,$(ZFS_OBJS_OS))
 zfs-$(CONFIG_X86)   += $(addprefix zfs/,$(ZFS_OBJS_X86))
 zfs-$(CONFIG_UML_X86)+= $(addprefix zfs/,$(ZFS_OBJS_X86))
-zfs-$(CONFIG_ARM64) += $(addprefix zfs/,$(ZFS_OBJS_ARM64))
 zfs-$(CONFIG_PPC)   += $(addprefix zfs/,$(ZFS_OBJS_PPC_PPC64))
 zfs-$(CONFIG_PPC64) += $(addprefix zfs/,$(ZFS_OBJS_PPC_PPC64))
 
diff --git a/module/icp/algs/blake3/blake3_impl.c b/module/icp/algs/blake3/blake3_impl.c
index f3f48c2..df02487 100644
--- a/module/icp/algs/blake3/blake3_impl.c
+++ b/module/icp/algs/blake3/blake3_impl.c
@@ -30,7 +30,7 @@
 
 #include "blake3_impl.h"
 
-#if defined(__aarch64__) || \
+#if 0 || \
 	(defined(__x86_64) && defined(HAVE_SSE2)) || \
 	(defined(__PPC64__) && defined(__LITTLE_ENDIAN__))
 
@@ -96,7 +96,7 @@ const blake3_ops_t blake3_sse2_impl = {
 };
 #endif
 
-#if defined(__aarch64__) || \
+#if 0 || \
 	(defined(__x86_64) && defined(HAVE_SSE2)) || \
 	(defined(__PPC64__) && defined(__LITTLE_ENDIAN__))
 
@@ -257,12 +257,12 @@ extern const blake3_ops_t blake3_generic_impl;
 
 static const blake3_ops_t *const blake3_impls[] = {
 	&blake3_generic_impl,
-#if defined(__aarch64__) || \
+#if 0 || \
 	(defined(__x86_64) && defined(HAVE_SSE2)) || \
 	(defined(__PPC64__) && defined(__LITTLE_ENDIAN__))
 	&blake3_sse2_impl,
 #endif
-#if defined(__aarch64__) || \
+#if 0 || \
 	(defined(__x86_64) && defined(HAVE_SSE4_1)) || \
 	(defined(__PPC64__) && defined(__LITTLE_ENDIAN__))
 	&blake3_sse41_impl,
diff --git a/module/icp/algs/sha2/sha256_impl.c b/module/icp/algs/sha2/sha256_impl.c
index 01ce5cb..69f8233 100644
--- a/module/icp/algs/sha2/sha256_impl.c
+++ b/module/icp/algs/sha2/sha256_impl.c
@@ -118,7 +118,7 @@ const sha256_ops_t sha256_shani_impl = {
 };
 #endif
 
-#elif defined(__aarch64__) || (defined(__arm__) && __ARM_ARCH > 6)
+#elif (defined(__aarch64__) && 0) || (defined(__arm__) && __ARM_ARCH > 6)
 static boolean_t sha256_have_neon(void)
 {
 	return (kfpu_allowed() && zfs_neon_available());
@@ -192,7 +192,7 @@ static const sha256_ops_t *const sha256_impls[] = {
 #if defined(__x86_64) && defined(HAVE_SSE4_1)
 	&sha256_shani_impl,
 #endif
-#if defined(__aarch64__) || (defined(__arm__) && __ARM_ARCH > 6)
+#if 0 || (defined(__arm__) && __ARM_ARCH > 6)
 	&sha256_armv7_impl,
 	&sha256_neon_impl,
 	&sha256_armv8_impl,
diff --git a/module/icp/algs/sha2/sha512_impl.c b/module/icp/algs/sha2/sha512_impl.c
index 27b35a6..23f5ea5 100644
--- a/module/icp/algs/sha2/sha512_impl.c
+++ b/module/icp/algs/sha2/sha512_impl.c
@@ -88,7 +88,7 @@ const sha512_ops_t sha512_avx2_impl = {
 };
 #endif
 
-#elif defined(__aarch64__)
+#elif defined(__aarch64__) && 0
 extern void zfs_sha512_block_armv7(uint64_t s[8], const void *, size_t);
 const sha512_ops_t sha512_armv7_impl = {
 	.is_supported = sha2_is_supported,
@@ -164,7 +164,7 @@ static const sha512_ops_t *const sha512_impls[] = {
 #if defined(__x86_64) && defined(HAVE_AVX2)
 	&sha512_avx2_impl,
 #endif
-#if defined(__aarch64__)
+#if 0
 	&sha512_armv7_impl,
 	&sha512_armv8_impl,
 #endif
diff --git a/module/zcommon/zfs_fletcher.c b/module/zcommon/zfs_fletcher.c
index 619ddef..39dbd65 100644
--- a/module/zcommon/zfs_fletcher.c
+++ b/module/zcommon/zfs_fletcher.c
@@ -188,9 +188,6 @@ static const fletcher_4_ops_t *fletcher_4_impls[] = {
 #if defined(__x86_64) && defined(HAVE_AVX512BW)
 	&fletcher_4_avx512bw_ops,
 #endif
-#if defined(__aarch64__) && !defined(__FreeBSD__)
-	&fletcher_4_aarch64_neon_ops,
-#endif
 };
 
 /* Hold all supported implementations */
diff --git a/module/zfs/vdev_raidz_math.c b/module/zfs/vdev_raidz_math.c
index e12b961..62c0063 100644
--- a/module/zfs/vdev_raidz_math.c
+++ b/module/zfs/vdev_raidz_math.c
@@ -61,10 +61,6 @@ static const raidz_impl_ops_t *const raidz_all_maths[] = {
 #if defined(__x86_64) && defined(HAVE_AVX512BW)	/* only x86_64 for now */
 	&vdev_raidz_avx512bw_impl,
 #endif
-#if defined(__aarch64__) && !defined(__FreeBSD__)
-	&vdev_raidz_aarch64_neon_impl,
-	&vdev_raidz_aarch64_neonx2_impl,
-#endif
 #if defined(__powerpc__) && defined(__altivec__)
 	&vdev_raidz_powerpc_altivec_impl,
 #endif