Merge tag 'v6.15-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto updates from Herbert Xu:
 "API:
   - Remove legacy compression interface
   - Improve scatterwalk API
   - Add request chaining to ahash and acomp
   - Add virtual address support to ahash and acomp
   - Add folio support to acomp
   - Remove NULL dst support from acomp

  Algorithms:
   - Library options are fuly hidden (selected by kernel users only)
   - Add Kerberos5 algorithms
   - Add VAES-based ctr(aes) on x86
   - Ensure LZO respects output buffer length on compression
   - Remove obsolete SIMD fallback code path from arm/ghash-ce

  Drivers:
   - Add support for PCI device 0x1134 in ccp
   - Add support for rk3588's standalone TRNG in rockchip
   - Add Inside Secure SafeXcel EIP-93 crypto engine support in eip93
   - Fix bugs in tegra uncovered by multi-threaded self-test
   - Fix corner cases in hisilicon/sec2

  Others:
   - Add SG_MITER_LOCAL to sg miter
   - Convert ubifs, hibernate and xfrm_ipcomp from legacy API to acomp"

* tag 'v6.15-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (187 commits)
  crypto: testmgr - Add multibuffer acomp testing
  crypto: acomp - Fix synchronous acomp chaining fallback
  crypto: testmgr - Add multibuffer hash testing
  crypto: hash - Fix synchronous ahash chaining fallback
  crypto: arm/ghash-ce - Remove SIMD fallback code path
  crypto: essiv - Replace memcpy() + NUL-termination with strscpy()
  crypto: api - Call crypto_alg_put in crypto_unregister_alg
  crypto: scompress - Fix incorrect stream freeing
  crypto: lib/chacha - remove unused arch-specific init support
  crypto: remove obsolete 'comp' compression API
  crypto: compress_null - drop obsolete 'comp' implementation
  crypto: cavium/zip - drop obsolete 'comp' implementation
  crypto: zstd - drop obsolete 'comp' implementation
  crypto: lzo - drop obsolete 'comp' implementation
  crypto: lzo-rle - drop obsolete 'comp' implementation
  crypto: lz4hc - drop obsolete 'comp' implementation
  crypto: lz4 - drop obsolete 'comp' implementation
  crypto: deflate - drop obsolete 'comp' implementation
  crypto: 842 - drop obsolete 'comp' implementation
  crypto: nx - Migrate to scomp API
  ...

6 files changed, 51 insertions, 71 deletions

diff --git a/include/linux/async_tx.h b/include/linux/async_tx.h
index 5cc73d7e5b52..1ca9f9e05f4f 100644
--- a/include/linux/async_tx.h
+++ b/include/linux/async_tx.h
@@ -168,11 +168,6 @@ async_xor_offs(struct page *dest, unsigned int offset,
 		int src_cnt, size_t len, struct async_submit_ctl *submit);
 
 struct dma_async_tx_descriptor *
-async_xor_val(struct page *dest, struct page **src_list, unsigned int offset,
-	      int src_cnt, size_t len, enum sum_check_flags *result,
-	      struct async_submit_ctl *submit);
-
-struct dma_async_tx_descriptor *
 async_xor_val_offs(struct page *dest, unsigned int offset,
 		struct page **src_list, unsigned int *src_offset,
 		int src_cnt, size_t len, enum sum_check_flags *result,
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index b164da5e129e..1e3809d28abd 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -13,6 +13,8 @@
 #define _LINUX_CRYPTO_H
 
 #include <linux/completion.h>
+#include <linux/errno.h>
+#include <linux/list.h>
 #include <linux/refcount.h>
 #include <linux/slab.h>
 #include <linux/types.h>
@@ -22,7 +24,6 @@
  */
 #define CRYPTO_ALG_TYPE_MASK		0x0000000f
 #define CRYPTO_ALG_TYPE_CIPHER		0x00000001
-#define CRYPTO_ALG_TYPE_COMPRESS	0x00000002
 #define CRYPTO_ALG_TYPE_AEAD		0x00000003
 #define CRYPTO_ALG_TYPE_LSKCIPHER	0x00000004
 #define CRYPTO_ALG_TYPE_SKCIPHER	0x00000005
@@ -124,6 +125,9 @@
  */
 #define CRYPTO_ALG_FIPS_INTERNAL	0x00020000
 
+/* Set if the algorithm supports request chains and virtual addresses. */
+#define CRYPTO_ALG_REQ_CHAIN		0x00040000
+
 /*
  * Transform masks and values (for crt_flags).
  */
@@ -133,6 +137,7 @@
 #define CRYPTO_TFM_REQ_FORBID_WEAK_KEYS	0x00000100
 #define CRYPTO_TFM_REQ_MAY_SLEEP	0x00000200
 #define CRYPTO_TFM_REQ_MAY_BACKLOG	0x00000400
+#define CRYPTO_TFM_REQ_ON_STACK		0x00000800
 
 /*
  * Miscellaneous stuff.
@@ -174,6 +179,7 @@ struct crypto_async_request {
 	struct crypto_tfm *tfm;
 
 	u32 flags;
+	int err;
 };
 
 /**
@@ -239,26 +245,7 @@ struct cipher_alg {
 	void (*cia_decrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
 };
 
-/**
- * struct compress_alg - compression/decompression algorithm
- * @coa_compress: Compress a buffer of specified length, storing the resulting
- *		  data in the specified buffer. Return the length of the
- *		  compressed data in dlen.
- * @coa_decompress: Decompress the source buffer, storing the uncompressed
- *		    data in the specified buffer. The length of the data is
- *		    returned in dlen.
- *
- * All fields are mandatory.
- */
-struct compress_alg {
-	int (*coa_compress)(struct crypto_tfm *tfm, const u8 *src,
-			    unsigned int slen, u8 *dst, unsigned int *dlen);
-	int (*coa_decompress)(struct crypto_tfm *tfm, const u8 *src,
-			      unsigned int slen, u8 *dst, unsigned int *dlen);
-};
-
 #define cra_cipher	cra_u.cipher
-#define cra_compress	cra_u.compress
 
 /**
  * struct crypto_alg - definition of a cryptograpic cipher algorithm
@@ -309,7 +296,7 @@ struct compress_alg {
  *	      transformation types. There are multiple options, such as
  *	      &crypto_skcipher_type, &crypto_ahash_type, &crypto_rng_type.
  *	      This field might be empty. In that case, there are no common
- *	      callbacks. This is the case for: cipher, compress, shash.
+ *	      callbacks. This is the case for: cipher.
  * @cra_u: Callbacks implementing the transformation. This is a union of
  *	   multiple structures. Depending on the type of transformation selected
  *	   by @cra_type and @cra_flags above, the associated structure must be
@@ -328,8 +315,6 @@ struct compress_alg {
  *	      @cra_init.
  * @cra_u.cipher: Union member which contains a single-block symmetric cipher
  *		  definition. See @struct @cipher_alg.
- * @cra_u.compress: Union member which contains a (de)compression algorithm.
- *		    See @struct @compress_alg.
  * @cra_module: Owner of this transformation implementation. Set to THIS_MODULE
  * @cra_list: internally used
  * @cra_users: internally used
@@ -359,7 +344,6 @@ struct crypto_alg {
 
 	union {
 		struct cipher_alg cipher;
-		struct compress_alg compress;
 	} cra_u;
 
 	int (*cra_init)(struct crypto_tfm *tfm);
@@ -433,10 +417,6 @@ struct crypto_tfm {
 	void *__crt_ctx[] CRYPTO_MINALIGN_ATTR;
 };
 
-struct crypto_comp {
-	struct crypto_tfm base;
-};
-
 /* 
  * Transform user interface.
  */
@@ -493,52 +473,23 @@ static inline unsigned int crypto_tfm_ctx_alignment(void)
 	return __alignof__(tfm->__crt_ctx);
 }
 
-static inline struct crypto_comp *__crypto_comp_cast(struct crypto_tfm *tfm)
-{
-	return (struct crypto_comp *)tfm;
-}
-
-static inline struct crypto_comp *crypto_alloc_comp(const char *alg_name,
-						    u32 type, u32 mask)
-{
-	type &= ~CRYPTO_ALG_TYPE_MASK;
-	type |= CRYPTO_ALG_TYPE_COMPRESS;
-	mask |= CRYPTO_ALG_TYPE_MASK;
-
-	return __crypto_comp_cast(crypto_alloc_base(alg_name, type, mask));
-}
-
-static inline struct crypto_tfm *crypto_comp_tfm(struct crypto_comp *tfm)
+static inline void crypto_reqchain_init(struct crypto_async_request *req)
 {
-	return &tfm->base;
+	req->err = -EINPROGRESS;
+	INIT_LIST_HEAD(&req->list);
 }
 
-static inline void crypto_free_comp(struct crypto_comp *tfm)
+static inline void crypto_request_chain(struct crypto_async_request *req,
+					struct crypto_async_request *head)
 {
-	crypto_free_tfm(crypto_comp_tfm(tfm));
+	req->err = -EINPROGRESS;
+	list_add_tail(&req->list, &head->list);
 }
 
-static inline int crypto_has_comp(const char *alg_name, u32 type, u32 mask)
+static inline bool crypto_tfm_is_async(struct crypto_tfm *tfm)
 {
-	type &= ~CRYPTO_ALG_TYPE_MASK;
-	type |= CRYPTO_ALG_TYPE_COMPRESS;
-	mask |= CRYPTO_ALG_TYPE_MASK;
-
-	return crypto_has_alg(alg_name, type, mask);
+	return tfm->__crt_alg->cra_flags & CRYPTO_ALG_ASYNC;
 }
 
-static inline const char *crypto_comp_name(struct crypto_comp *tfm)
-{
-	return crypto_tfm_alg_name(crypto_comp_tfm(tfm));
-}
-
-int crypto_comp_compress(struct crypto_comp *tfm,
-			 const u8 *src, unsigned int slen,
-			 u8 *dst, unsigned int *dlen);
-
-int crypto_comp_decompress(struct crypto_comp *tfm,
-			   const u8 *src, unsigned int slen,
-			   u8 *dst, unsigned int *dlen);
-
 #endif	/* _LINUX_CRYPTO_H */
 
diff --git a/include/linux/lzo.h b/include/linux/lzo.h
index e95c7d1092b2..4d30e3624acd 100644
--- a/include/linux/lzo.h
+++ b/include/linux/lzo.h
@@ -24,10 +24,18 @@
 int lzo1x_1_compress(const unsigned char *src, size_t src_len,
 		     unsigned char *dst, size_t *dst_len, void *wrkmem);
 
+/* Same as above but does not write more than dst_len to dst. */
+int lzo1x_1_compress_safe(const unsigned char *src, size_t src_len,
+			  unsigned char *dst, size_t *dst_len, void *wrkmem);
+
 /* This requires 'wrkmem' of size LZO1X_1_MEM_COMPRESS */
 int lzorle1x_1_compress(const unsigned char *src, size_t src_len,
 		     unsigned char *dst, size_t *dst_len, void *wrkmem);
 
+/* Same as above but does not write more than dst_len to dst. */
+int lzorle1x_1_compress_safe(const unsigned char *src, size_t src_len,
+			     unsigned char *dst, size_t *dst_len, void *wrkmem);
+
 /* safe decompression with overrun testing */
 int lzo1x_decompress_safe(const unsigned char *src, size_t src_len,
 			  unsigned char *dst, size_t *dst_len);
diff --git a/include/linux/math.h b/include/linux/math.h
index f5f18dc3616b..0198c92cbe3e 100644
--- a/include/linux/math.h
+++ b/include/linux/math.h
@@ -34,6 +34,18 @@
  */
 #define round_down(x, y) ((x) & ~__round_mask(x, y))
 
+/**
+ * DIV_ROUND_UP_POW2 - divide and round up
+ * @n: numerator
+ * @d: denominator (must be a power of 2)
+ *
+ * Divides @n by @d and rounds up to next multiple of @d (which must be a power
+ * of 2). Avoids integer overflows that may occur with __KERNEL_DIV_ROUND_UP().
+ * Performance is roughly equivalent to __KERNEL_DIV_ROUND_UP().
+ */
+#define DIV_ROUND_UP_POW2(n, d) \
+	((n) / (d) + !!((n) & ((d) - 1)))
+
 #define DIV_ROUND_UP __KERNEL_DIV_ROUND_UP
 
 #define DIV_ROUND_DOWN_ULL(ll, d) \
diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
index d836e7440ee8..138e2f1bd08f 100644
--- a/include/linux/scatterlist.h
+++ b/include/linux/scatterlist.h
@@ -671,6 +671,7 @@ sg_page_iter_dma_address(struct sg_dma_page_iter *dma_iter)
 #define SG_MITER_ATOMIC		(1 << 0)	 /* use kmap_atomic */
 #define SG_MITER_TO_SG		(1 << 1)	/* flush back to phys on unmap */
 #define SG_MITER_FROM_SG	(1 << 2)	/* nop */
+#define SG_MITER_LOCAL		(1 << 3)	 /* use kmap_local */
 
 struct sg_mapping_iter {
 	/* the following three fields can be accessed directly */
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index 63dd8cf3c3c2..d3561c4a080e 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -548,6 +548,12 @@ DEFINE_LOCK_GUARD_1(raw_spinlock_irq, raw_spinlock_t,
 
 DEFINE_LOCK_GUARD_1_COND(raw_spinlock_irq, _try, raw_spin_trylock_irq(_T->lock))
 
+DEFINE_LOCK_GUARD_1(raw_spinlock_bh, raw_spinlock_t,
+		    raw_spin_lock_bh(_T->lock),
+		    raw_spin_unlock_bh(_T->lock))
+
+DEFINE_LOCK_GUARD_1_COND(raw_spinlock_bh, _try, raw_spin_trylock_bh(_T->lock))
+
 DEFINE_LOCK_GUARD_1(raw_spinlock_irqsave, raw_spinlock_t,
 		    raw_spin_lock_irqsave(_T->lock, _T->flags),
 		    raw_spin_unlock_irqrestore(_T->lock, _T->flags),
@@ -569,6 +575,13 @@ DEFINE_LOCK_GUARD_1(spinlock_irq, spinlock_t,
 DEFINE_LOCK_GUARD_1_COND(spinlock_irq, _try,
 			 spin_trylock_irq(_T->lock))
 
+DEFINE_LOCK_GUARD_1(spinlock_bh, spinlock_t,
+		    spin_lock_bh(_T->lock),
+		    spin_unlock_bh(_T->lock))
+
+DEFINE_LOCK_GUARD_1_COND(spinlock_bh, _try,
+			 spin_trylock_bh(_T->lock))
+
 DEFINE_LOCK_GUARD_1(spinlock_irqsave, spinlock_t,
 		    spin_lock_irqsave(_T->lock, _T->flags),
 		    spin_unlock_irqrestore(_T->lock, _T->flags),