1 files changed, 0 insertions, 93 deletions
diff --git a/arch/powerpc/lib/crc32.c b/arch/powerpc/lib/crc32.c
deleted file mode 100644
index 0d9befb6e7b8..000000000000
--- a/arch/powerpc/lib/crc32.c
+++ /dev/null
@@ -1,93 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-#include <asm/switch_to.h>
-#include <crypto/internal/simd.h>
-#include <linux/cpufeature.h>
-#include <linux/crc32.h>
-#include <linux/jump_label.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/preempt.h>
-#include <linux/uaccess.h>
-
-#define VMX_ALIGN		16
-#define VMX_ALIGN_MASK		(VMX_ALIGN-1)
-
-#define VECTOR_BREAKPOINT	512
-
-static __ro_after_init DEFINE_STATIC_KEY_FALSE(have_vec_crypto);
-
-u32 __crc32c_vpmsum(u32 crc, const u8 *p, size_t len);
-
-u32 crc32_le_arch(u32 crc, const u8 *p, size_t len)
-{
-	return crc32_le_base(crc, p, len);
-}
-EXPORT_SYMBOL(crc32_le_arch);
-
-u32 crc32c_arch(u32 crc, const u8 *p, size_t len)
-{
-	unsigned int prealign;
-	unsigned int tail;
-
-	if (len < (VECTOR_BREAKPOINT + VMX_ALIGN) ||
-	    !static_branch_likely(&have_vec_crypto) || !crypto_simd_usable())
-		return crc32c_base(crc, p, len);
-
-	if ((unsigned long)p & VMX_ALIGN_MASK) {
-		prealign = VMX_ALIGN - ((unsigned long)p & VMX_ALIGN_MASK);
-		crc = crc32c_base(crc, p, prealign);
-		len -= prealign;
-		p += prealign;
-	}
-
-	if (len & ~VMX_ALIGN_MASK) {
-		preempt_disable();
-		pagefault_disable();
-		enable_kernel_altivec();
-		crc = __crc32c_vpmsum(crc, p, len & ~VMX_ALIGN_MASK);
-		disable_kernel_altivec();
-		pagefault_enable();
-		preempt_enable();
-	}
-
-	tail = len & VMX_ALIGN_MASK;
-	if (tail) {
-		p += len & ~VMX_ALIGN_MASK;
-		crc = crc32c_base(crc, p, tail);
-	}
-
-	return crc;
-}
-EXPORT_SYMBOL(crc32c_arch);
-
-u32 crc32_be_arch(u32 crc, const u8 *p, size_t len)
-{
-	return crc32_be_base(crc, p, len);
-}
-EXPORT_SYMBOL(crc32_be_arch);
-
-static int __init crc32_powerpc_init(void)
-{
-	if (cpu_has_feature(CPU_FTR_ARCH_207S) &&
-	    (cur_cpu_spec->cpu_user_features2 & PPC_FEATURE2_VEC_CRYPTO))
-		static_branch_enable(&have_vec_crypto);
-	return 0;
-}
-subsys_initcall(crc32_powerpc_init);
-
-static void __exit crc32_powerpc_exit(void)
-{
-}
-module_exit(crc32_powerpc_exit);
-
-u32 crc32_optimizations(void)
-{
-	if (static_key_enabled(&have_vec_crypto))
-		return CRC32C_OPTIMIZATION;
-	return 0;
-}
-EXPORT_SYMBOL(crc32_optimizations);
-
-MODULE_AUTHOR("Anton Blanchard <anton@samba.org>");
-MODULE_DESCRIPTION("CRC32C using vector polynomial multiply-sum instructions");
-MODULE_LICENSE("GPL");