diff options
Diffstat (limited to 'target/linux/generic/backport-5.4/080-wireguard-0028-crypto-lib-curve25519-work-around-Clang-stack-spilli.patch')
-rw-r--r-- | target/linux/generic/backport-5.4/080-wireguard-0028-crypto-lib-curve25519-work-around-Clang-stack-spilli.patch | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/target/linux/generic/backport-5.4/080-wireguard-0028-crypto-lib-curve25519-work-around-Clang-stack-spilli.patch b/target/linux/generic/backport-5.4/080-wireguard-0028-crypto-lib-curve25519-work-around-Clang-stack-spilli.patch deleted file mode 100644 index 36b59c9aae..0000000000 --- a/target/linux/generic/backport-5.4/080-wireguard-0028-crypto-lib-curve25519-work-around-Clang-stack-spilli.patch +++ /dev/null @@ -1,75 +0,0 @@ -From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 -From: Ard Biesheuvel <ardb@kernel.org> -Date: Fri, 8 Nov 2019 13:22:35 +0100 -Subject: [PATCH] crypto: lib/curve25519 - work around Clang stack spilling - issue - -commit 660bb8e1f833ea63185fe80fde847e3e42f18e3b upstream. - -Arnd reports that the 32-bit generic library code for Curve25119 ends -up using an excessive amount of stack space when built with Clang: - - lib/crypto/curve25519-fiat32.c:756:6: error: stack frame size - of 1384 bytes in function 'curve25519_generic' - [-Werror,-Wframe-larger-than=] - -Let's give some hints to the compiler regarding which routines should -not be inlined, to prevent it from running out of registers and spilling -to the stack. The resulting code performs identically under both GCC -and Clang, and makes the warning go away. - -Suggested-by: Arnd Bergmann <arnd@arndb.de> -Signed-off-by: Ard Biesheuvel <ardb@kernel.org> -Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> -Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> ---- - lib/crypto/curve25519-fiat32.c | 10 +++++----- - 1 file changed, 5 insertions(+), 5 deletions(-) - ---- a/lib/crypto/curve25519-fiat32.c -+++ b/lib/crypto/curve25519-fiat32.c -@@ -223,7 +223,7 @@ static __always_inline void fe_1(fe *h) - h->v[0] = 1; - } - --static void fe_add_impl(u32 out[10], const u32 in1[10], const u32 in2[10]) -+static noinline void fe_add_impl(u32 out[10], const u32 in1[10], const u32 in2[10]) - { - { const u32 x20 = in1[9]; - { const u32 x21 = in1[8]; -@@ -266,7 +266,7 @@ static __always_inline void fe_add(fe_lo - fe_add_impl(h->v, f->v, g->v); - } - --static void fe_sub_impl(u32 out[10], const u32 in1[10], const u32 in2[10]) -+static noinline void fe_sub_impl(u32 out[10], const u32 in1[10], const u32 in2[10]) - { - { const u32 x20 = in1[9]; - { const u32 x21 = in1[8]; -@@ -309,7 +309,7 @@ static __always_inline void fe_sub(fe_lo - fe_sub_impl(h->v, f->v, g->v); - } - --static void fe_mul_impl(u32 out[10], const u32 in1[10], const u32 in2[10]) -+static noinline void fe_mul_impl(u32 out[10], const u32 in1[10], const u32 in2[10]) - { - { const u32 x20 = in1[9]; - { const u32 x21 = in1[8]; -@@ -441,7 +441,7 @@ fe_mul_tll(fe *h, const fe_loose *f, con - fe_mul_impl(h->v, f->v, g->v); - } - --static void fe_sqr_impl(u32 out[10], const u32 in1[10]) -+static noinline void fe_sqr_impl(u32 out[10], const u32 in1[10]) - { - { const u32 x17 = in1[9]; - { const u32 x18 = in1[8]; -@@ -619,7 +619,7 @@ static __always_inline void fe_invert(fe - * - * Preconditions: b in {0,1} - */ --static __always_inline void fe_cswap(fe *f, fe *g, unsigned int b) -+static noinline void fe_cswap(fe *f, fe *g, unsigned int b) - { - unsigned i; - b = 0 - b; |