crypto: x86 - Add missing RETs

Add explicit RETs to the tail calls of AEGIS and MORUS crypto algorithms
otherwise they run into INT3 padding due to

  ("x86/asm: Pad assembly functions with INT3 instructions")

leading to spurious debug exceptions.

Mike Galbraith <[email protected]> took care of all the remaining callsites.

Signed-off-by: Borislav Petkov <[email protected]>
Acked-by: Ondrej Mosnacek <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

diff --git a/arch/x86/crypto/aegis128-aesni-asm.S b/arch/x86/crypto/aegis128-aesni-asm.S
index 9254e0b6cc060011d63b2bfa9ec281768776b2bc..717bf07764210f065315d7e3afa09774d9a87efe 100644 (file)
--- a/arch/x86/crypto/aegis128-aesni-asm.S
+++ b/arch/x86/crypto/aegis128-aesni-asm.S
@@ -535,6 +535,7 @@ ENTRY(crypto_aegis128_aesni_enc_tail)
        movdqu STATE3, 0x40(STATEP)
 
        FRAME_END
+       ret
 ENDPROC(crypto_aegis128_aesni_enc_tail)
 
 .macro decrypt_block a s0 s1 s2 s3 s4 i

diff --git a/arch/x86/crypto/aegis128l-aesni-asm.S b/arch/x86/crypto/aegis128l-aesni-asm.S
index 9263c344f2c797d847b7b7ec534803010a5c9e72..4eda2b8db9e1b08d4af85e37c6cf19039bc9220b 100644 (file)
--- a/arch/x86/crypto/aegis128l-aesni-asm.S
+++ b/arch/x86/crypto/aegis128l-aesni-asm.S
@@ -645,6 +645,7 @@ ENTRY(crypto_aegis128l_aesni_enc_tail)
        state_store0
 
        FRAME_END
+       ret
 ENDPROC(crypto_aegis128l_aesni_enc_tail)
 
 /*

diff --git a/arch/x86/crypto/aegis256-aesni-asm.S b/arch/x86/crypto/aegis256-aesni-asm.S
index 1d977d515bf992c649d8890316dfca41fc511364..32aae83972680731a4f36f92b608344d15339d9f 100644 (file)
--- a/arch/x86/crypto/aegis256-aesni-asm.S
+++ b/arch/x86/crypto/aegis256-aesni-asm.S
@@ -543,6 +543,7 @@ ENTRY(crypto_aegis256_aesni_enc_tail)
        state_store0
 
        FRAME_END
+       ret
 ENDPROC(crypto_aegis256_aesni_enc_tail)
 
 /*

diff --git a/arch/x86/crypto/morus1280-avx2-asm.S b/arch/x86/crypto/morus1280-avx2-asm.S
index 37d422e77931129d06e88c30edd040bc78c3de04..07653d4582a66b45370fa764747e5fa1056ef748 100644 (file)
--- a/arch/x86/crypto/morus1280-avx2-asm.S
+++ b/arch/x86/crypto/morus1280-avx2-asm.S
@@ -453,6 +453,7 @@ ENTRY(crypto_morus1280_avx2_enc_tail)
        vmovdqu STATE4, (4 * 32)(%rdi)
 
        FRAME_END
+       ret
 ENDPROC(crypto_morus1280_avx2_enc_tail)
 
 /*

diff --git a/arch/x86/crypto/morus1280-sse2-asm.S b/arch/x86/crypto/morus1280-sse2-asm.S
index 1fe637c7be9db5515bbaff68f935dea11d151062..bd1aa1b608698fd50c967a250dc257a89b5fa3b4 100644 (file)
--- a/arch/x86/crypto/morus1280-sse2-asm.S
+++ b/arch/x86/crypto/morus1280-sse2-asm.S
@@ -652,6 +652,7 @@ ENTRY(crypto_morus1280_sse2_enc_tail)
        movdqu STATE4_HI, (9 * 16)(%rdi)
 
        FRAME_END
+       ret
 ENDPROC(crypto_morus1280_sse2_enc_tail)
 
 /*

diff --git a/arch/x86/crypto/morus640-sse2-asm.S b/arch/x86/crypto/morus640-sse2-asm.S
index 71c72a0a0862c25da3293b499f0b2994e14f9926..efa02816d921c246b02a40a5b85e1396068c9beb 100644 (file)
--- a/arch/x86/crypto/morus640-sse2-asm.S
+++ b/arch/x86/crypto/morus640-sse2-asm.S
@@ -437,6 +437,7 @@ ENTRY(crypto_morus640_sse2_enc_tail)
        movdqu STATE4, (4 * 16)(%rdi)
 
        FRAME_END
+       ret
 ENDPROC(crypto_morus640_sse2_enc_tail)
 
 /*