Merge tag 'v6.1-rc6' into x86/core, to resolve conflicts

Resolve conflicts between these commits in arch/x86/kernel/asm-offsets.c:

 # upstream:
 debc5a1ec0d1 ("KVM: x86: use a separate asm-offsets.c file")

 # retbleed work in x86/core:
 5d8213864ade ("x86/retbleed: Add SKL return thunk")

... and these commits in include/linux/bpf.h:

  # upstram:
  18acb7fac22f ("bpf: Revert ("Fix dispatcher patchable function entry to 5 bytes nop")")

  # x86/core commits:
  931ab63664f0 ("x86/ibt: Implement FineIBT")
  bea75b33895f ("x86/Kconfig: Introduce function padding")

The latter two modify BPF_DISPATCHER_ATTRIBUTES(), which was removed upstream.

 Conflicts:
	arch/x86/kernel/asm-offsets.c
	include/linux/bpf.h

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 14 insertions, 5 deletions

diff --git a/arch/x86/crypto/polyval-clmulni_glue.c b/arch/x86/crypto/polyval-clmulni_glue.c
index b7664d018851..8fa58b0f3cb3 100644
--- a/arch/x86/crypto/polyval-clmulni_glue.c
+++ b/arch/x86/crypto/polyval-clmulni_glue.c
@@ -27,13 +27,17 @@
 #include <asm/cpu_device_id.h>
 #include <asm/simd.h>
 
+#define POLYVAL_ALIGN	16
+#define POLYVAL_ALIGN_ATTR __aligned(POLYVAL_ALIGN)
+#define POLYVAL_ALIGN_EXTRA ((POLYVAL_ALIGN - 1) & ~(CRYPTO_MINALIGN - 1))
+#define POLYVAL_CTX_SIZE (sizeof(struct polyval_tfm_ctx) + POLYVAL_ALIGN_EXTRA)
 #define NUM_KEY_POWERS	8
 
 struct polyval_tfm_ctx {
 	/*
 	 * These powers must be in the order h^8, ..., h^1.
 	 */
-	u8 key_powers[NUM_KEY_POWERS][POLYVAL_BLOCK_SIZE];
+	u8 key_powers[NUM_KEY_POWERS][POLYVAL_BLOCK_SIZE] POLYVAL_ALIGN_ATTR;
 };
 
 struct polyval_desc_ctx {
@@ -45,6 +49,11 @@ asmlinkage void clmul_polyval_update(const struct polyval_tfm_ctx *keys,
 	const u8 *in, size_t nblocks, u8 *accumulator);
 asmlinkage void clmul_polyval_mul(u8 *op1, const u8 *op2);
 
+static inline struct polyval_tfm_ctx *polyval_tfm_ctx(struct crypto_shash *tfm)
+{
+	return PTR_ALIGN(crypto_shash_ctx(tfm), POLYVAL_ALIGN);
+}
+
 static void internal_polyval_update(const struct polyval_tfm_ctx *keys,
 	const u8 *in, size_t nblocks, u8 *accumulator)
 {
@@ -72,7 +81,7 @@ static void internal_polyval_mul(u8 *op1, const u8 *op2)
 static int polyval_x86_setkey(struct crypto_shash *tfm,
 			const u8 *key, unsigned int keylen)
 {
-	struct polyval_tfm_ctx *tctx = crypto_shash_ctx(tfm);
+	struct polyval_tfm_ctx *tctx = polyval_tfm_ctx(tfm);
 	int i;
 
 	if (keylen != POLYVAL_BLOCK_SIZE)
@@ -102,7 +111,7 @@ static int polyval_x86_update(struct shash_desc *desc,
 			 const u8 *src, unsigned int srclen)
 {
 	struct polyval_desc_ctx *dctx = shash_desc_ctx(desc);
-	const struct polyval_tfm_ctx *tctx = crypto_shash_ctx(desc->tfm);
+	const struct polyval_tfm_ctx *tctx = polyval_tfm_ctx(desc->tfm);
 	u8 *pos;
 	unsigned int nblocks;
 	unsigned int n;
@@ -143,7 +152,7 @@ static int polyval_x86_update(struct shash_desc *desc,
 static int polyval_x86_final(struct shash_desc *desc, u8 *dst)
 {
 	struct polyval_desc_ctx *dctx = shash_desc_ctx(desc);
-	const struct polyval_tfm_ctx *tctx = crypto_shash_ctx(desc->tfm);
+	const struct polyval_tfm_ctx *tctx = polyval_tfm_ctx(desc->tfm);
 
 	if (dctx->bytes) {
 		internal_polyval_mul(dctx->buffer,
@@ -167,7 +176,7 @@ static struct shash_alg polyval_alg = {
 		.cra_driver_name	= "polyval-clmulni",
 		.cra_priority		= 200,
 		.cra_blocksize		= POLYVAL_BLOCK_SIZE,
-		.cra_ctxsize		= sizeof(struct polyval_tfm_ctx),
+		.cra_ctxsize		= POLYVAL_CTX_SIZE,
 		.cra_module		= THIS_MODULE,
 	},
 };