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 <efault@gmx.de> took care of all the remaining callsites.

Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Ondrej Mosnacek <omosnacek@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/arch/x86/crypto/aegis128-aesni-asm.S b/arch/x86/crypto/aegis128-aesni-asm.S
index 9254e0b..717bf07 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 9263c34..4eda2b8 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 1d977d5..32aae83 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 37d422e..07653d4 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 1fe637c..bd1aa1b 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 71c72a0..efa0281 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)
 
 /*