crypto: arch/sha256 - Export block functions as GPL only

Export the block functions as GPL only, there is no reason
to let arbitrary modules use these internal functions.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Author: herbertx

arch/arm/lib/crypto/sha256.c

@@ -35,14 +35,14 @@ void sha256_blocks_arch(u32 state[SHA256_STATE_WORDS],
 		sha256_block_data_order(state, data, nblocks);
 	}
 }
-EXPORT_SYMBOL(sha256_blocks_arch);
+EXPORT_SYMBOL_GPL(sha256_blocks_arch);
 
 bool sha256_is_arch_optimized(void)
 {
 	/* We always can use at least the ARM scalar implementation. */
 	return true;
 }
-EXPORT_SYMBOL(sha256_is_arch_optimized);
+EXPORT_SYMBOL_GPL(sha256_is_arch_optimized);
 
 static int __init sha256_arm_mod_init(void)
 {

arch/arm64/lib/crypto/sha256.c

@@ -45,14 +45,14 @@ void sha256_blocks_arch(u32 state[SHA256_STATE_WORDS],
 		sha256_block_data_order(state, data, nblocks);
 	}
 }
-EXPORT_SYMBOL(sha256_blocks_arch);
+EXPORT_SYMBOL_GPL(sha256_blocks_arch);
 
 bool sha256_is_arch_optimized(void)
 {
 	/* We always can use at least the ARM64 scalar implementation. */
 	return true;
 }
-EXPORT_SYMBOL(sha256_is_arch_optimized);
+EXPORT_SYMBOL_GPL(sha256_is_arch_optimized);
 
 static int __init sha256_arm64_mod_init(void)
 {

arch/mips/cavium-octeon/crypto/octeon-sha256.c

@@ -60,13 +60,13 @@ void sha256_blocks_arch(u32 state[SHA256_STATE_WORDS],
 	state64[3] = read_octeon_64bit_hash_dword(3);
 	octeon_crypto_disable(&cop2_state, flags);
 }
-EXPORT_SYMBOL(sha256_blocks_arch);
+EXPORT_SYMBOL_GPL(sha256_blocks_arch);
 
 bool sha256_is_arch_optimized(void)
 {
 	return octeon_has_crypto();
 }
-EXPORT_SYMBOL(sha256_is_arch_optimized);
+EXPORT_SYMBOL_GPL(sha256_is_arch_optimized);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("SHA-256 Secure Hash Algorithm (OCTEON)");

arch/powerpc/lib/crypto/sha256.c

@@ -58,13 +58,13 @@ void sha256_blocks_arch(u32 state[SHA256_STATE_WORDS],
 		nblocks -= unit;
 	} while (nblocks);
 }
-EXPORT_SYMBOL(sha256_blocks_arch);
+EXPORT_SYMBOL_GPL(sha256_blocks_arch);
 
 bool sha256_is_arch_optimized(void)
 {
 	return true;
 }
-EXPORT_SYMBOL(sha256_is_arch_optimized);
+EXPORT_SYMBOL_GPL(sha256_is_arch_optimized);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("SHA-256 Secure Hash Algorithm, SPE optimized");

arch/riscv/lib/crypto/sha256.c

@@ -32,13 +32,13 @@ void sha256_blocks_arch(u32 state[SHA256_STATE_WORDS],
 		sha256_blocks_generic(state, data, nblocks);
 	}
 }
-EXPORT_SYMBOL(sha256_blocks_arch);
+EXPORT_SYMBOL_GPL(sha256_blocks_arch);
 
 bool sha256_is_arch_optimized(void)
 {
 	return static_key_enabled(&have_extensions);
 }
-EXPORT_SYMBOL(sha256_is_arch_optimized);
+EXPORT_SYMBOL_GPL(sha256_is_arch_optimized);
 
 static int __init riscv64_sha256_mod_init(void)
 {

arch/s390/lib/crypto/sha256.c

@@ -21,13 +21,13 @@ void sha256_blocks_arch(u32 state[SHA256_STATE_WORDS],
 	else
 		sha256_blocks_generic(state, data, nblocks);
 }
-EXPORT_SYMBOL(sha256_blocks_arch);
+EXPORT_SYMBOL_GPL(sha256_blocks_arch);
 
 bool sha256_is_arch_optimized(void)
 {
 	return static_key_enabled(&have_cpacf_sha256);
 }
-EXPORT_SYMBOL(sha256_is_arch_optimized);
+EXPORT_SYMBOL_GPL(sha256_is_arch_optimized);
 
 static int __init sha256_s390_mod_init(void)
 {

arch/sparc/lib/crypto/sha256.c

@@ -30,13 +30,13 @@ void sha256_blocks_arch(u32 state[SHA256_STATE_WORDS],
 	else
 		sha256_blocks_generic(state, data, nblocks);
 }
-EXPORT_SYMBOL(sha256_blocks_arch);
+EXPORT_SYMBOL_GPL(sha256_blocks_arch);
 
 bool sha256_is_arch_optimized(void)
 {
 	return static_key_enabled(&have_sha256_opcodes);
 }
-EXPORT_SYMBOL(sha256_is_arch_optimized);
+EXPORT_SYMBOL_GPL(sha256_is_arch_optimized);
 
 static int __init sha256_sparc64_mod_init(void)
 {

arch/x86/lib/crypto/sha256.c

@@ -35,13 +35,13 @@ void sha256_blocks_arch(u32 state[SHA256_STATE_WORDS],
 		sha256_blocks_generic(state, data, nblocks);
 	}
 }
-EXPORT_SYMBOL(sha256_blocks_arch);
+EXPORT_SYMBOL_GPL(sha256_blocks_arch);
 
 bool sha256_is_arch_optimized(void)
 {
 	return static_key_enabled(&have_sha256_x86);
 }
-EXPORT_SYMBOL(sha256_is_arch_optimized);
+EXPORT_SYMBOL_GPL(sha256_is_arch_optimized);
 
 static int __init sha256_x86_mod_init(void)
 {