[PATCH v4 07/20] drivers: crypto: meson: move algs definition and cipher API to cipher.c

Alexey Romanov
2024-02-12T13:51:39Z

Because that is proper place for them. In particular,
it takes less of exported symbol between compiling entities.

Signed-off-by: Alexey Romanov <avromanov@salutedevices.com>
---
drivers/crypto/amlogic/amlogic-gxl-cipher.c | 98 +++++++++++++++--
drivers/crypto/amlogic/amlogic-gxl-core.c | 110 ++++----------------
drivers/crypto/amlogic/amlogic-gxl.h | 14 +--
3 files changed, 119 insertions(+), 103 deletions(-)

diff --git a/drivers/crypto/amlogic/amlogic-gxl-cipher.c b/drivers/crypto/amlogic/amlogic-gxl-cipher.c
index dc0b100c5de2..bc3092a8a2c2 100644
--- a/drivers/crypto/amlogic/amlogic-gxl-cipher.c
+++ b/drivers/crypto/amlogic/amlogic-gxl-cipher.c
@@ -271,7 +271,7 @@ int meson_handle_cipher_request(struct crypto_engine *engine, void *areq)
return 0;
}

-int meson_skdecrypt(struct skcipher_request *areq)
+static int meson_skdecrypt(struct skcipher_request *areq)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq);
struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm);
@@ -289,7 +289,7 @@ int meson_skdecrypt(struct skcipher_request *areq)
return crypto_transfer_skcipher_request_to_engine(engine, areq);
}

-int meson_skencrypt(struct skcipher_request *areq)
+static int meson_skencrypt(struct skcipher_request *areq)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq);
struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm);
@@ -307,7 +307,7 @@ int meson_skencrypt(struct skcipher_request *areq)
return crypto_transfer_skcipher_request_to_engine(engine, areq);
}

-int meson_cipher_init(struct crypto_tfm *tfm)
+static int meson_cipher_init(struct crypto_tfm *tfm)
{
struct meson_cipher_tfm_ctx *op = crypto_tfm_ctx(tfm);
struct meson_alg_template *algt;
@@ -333,7 +333,7 @@ int meson_cipher_init(struct crypto_tfm *tfm)
return 0;
}

-void meson_cipher_exit(struct crypto_tfm *tfm)
+static void meson_cipher_exit(struct crypto_tfm *tfm)
{
struct meson_cipher_tfm_ctx *op = crypto_tfm_ctx(tfm);

@@ -341,8 +341,8 @@ void meson_cipher_exit(struct crypto_tfm *tfm)
crypto_free_skcipher(op->fallback_tfm);
}

-int meson_aes_setkey(struct crypto_skcipher *tfm, const u8 *key,
- unsigned int keylen)
+static int meson_aes_setkey(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keylen)
{
struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm);
struct meson_dev *mc = op->mc;
@@ -369,3 +369,89 @@ int meson_aes_setkey(struct crypto_skcipher *tfm, const u8 *key,

return crypto_skcipher_setkey(op->fallback_tfm, key, keylen);
}
+
+static struct meson_alg_template algs[] = {
+{
+ .type = CRYPTO_ALG_TYPE_SKCIPHER,
+ .blockmode = MESON_OPMODE_CBC,
+ .alg.skcipher.base = {
+ .base = {
+ .cra_name = "cbc(aes)",
+ .cra_driver_name = "cbc-aes-gxl",
+ .cra_priority = 400,
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_ctxsize = sizeof(struct meson_cipher_tfm_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_alignmask = 0xf,
+ .cra_init = meson_cipher_init,
+ .cra_exit = meson_cipher_exit,
+ },
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .setkey = meson_aes_setkey,
+ .encrypt = meson_skencrypt,
+ .decrypt = meson_skdecrypt,
+ },
+ .alg.skcipher.op = {
+ .do_one_request = meson_handle_cipher_request,
+ },
+},
+{
+ .type = CRYPTO_ALG_TYPE_SKCIPHER,
+ .blockmode = MESON_OPMODE_ECB,
+ .alg.skcipher.base = {
+ .base = {
+ .cra_name = "ecb(aes)",
+ .cra_driver_name = "ecb-aes-gxl",
+ .cra_priority = 400,
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
+ .cra_ctxsize = sizeof(struct meson_cipher_tfm_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_alignmask = 0xf,
+ .cra_init = meson_cipher_init,
+ .cra_exit = meson_cipher_exit,
+ },
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .setkey = meson_aes_setkey,
+ .encrypt = meson_skencrypt,
+ .decrypt = meson_skdecrypt,
+ },
+ .alg.skcipher.op = {
+ .do_one_request = meson_handle_cipher_request,
+ },
+},
+};
+
+int meson_cipher_register(struct meson_dev *mc)
+{
+ return meson_register_algs(mc, algs, ARRAY_SIZE(algs));
+}
+
+void meson_cipher_unregister(struct meson_dev *mc)
+{
+ meson_unregister_algs(mc, algs, ARRAY_SIZE(algs));
+}
+
+void meson_cipher_debugfs_show(struct seq_file *seq, void *v)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(algs); i++) {
+ seq_printf(seq, "%s %s %lu %lu\n",
+ algs[i].alg.skcipher.base.base.cra_driver_name,
+ algs[i].alg.skcipher.base.base.cra_name,
+#ifdef CONFIG_CRYPTO_DEV_AMLOGIC_GXL_DEBUG
+ algs[i].stat_req, algs[i].stat_fb);
+#else
+ 0ul, 0ul);
+#endif
+ }
+}
diff --git a/drivers/crypto/amlogic/amlogic-gxl-core.c b/drivers/crypto/amlogic/amlogic-gxl-core.c
index f7c60ebffbc3..22ff2768b5e5 100644
--- a/drivers/crypto/amlogic/amlogic-gxl-core.c
+++ b/drivers/crypto/amlogic/amlogic-gxl-core.c
@@ -65,66 +65,6 @@ static irqreturn_t meson_irq_handler(int irq, void *data)
return IRQ_HANDLED;
}

-static struct meson_alg_template mc_algs[] = {
-{
- .type = CRYPTO_ALG_TYPE_SKCIPHER,
- .blockmode = MESON_OPMODE_CBC,
- .alg.skcipher.base = {
- .base = {
- .cra_name = "cbc(aes)",
- .cra_driver_name = "cbc-aes-gxl",
- .cra_priority = 400,
- .cra_blocksize = AES_BLOCK_SIZE,
- .cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
- CRYPTO_ALG_NEED_FALLBACK,
- .cra_ctxsize = sizeof(struct meson_cipher_tfm_ctx),
- .cra_module = THIS_MODULE,
- .cra_alignmask = 0xf,
- .cra_init = meson_cipher_init,
- .cra_exit = meson_cipher_exit,
- },
- .min_keysize = AES_MIN_KEY_SIZE,
- .max_keysize = AES_MAX_KEY_SIZE,
- .ivsize = AES_BLOCK_SIZE,
- .setkey = meson_aes_setkey,
- .encrypt = meson_skencrypt,
- .decrypt = meson_skdecrypt,
- },
- .alg.skcipher.op = {
- .do_one_request = meson_handle_cipher_request,
- },
-},
-{
- .type = CRYPTO_ALG_TYPE_SKCIPHER,
- .blockmode = MESON_OPMODE_ECB,
- .alg.skcipher.base = {
- .base = {
- .cra_name = "ecb(aes)",
- .cra_driver_name = "ecb-aes-gxl",
- .cra_priority = 400,
- .cra_blocksize = AES_BLOCK_SIZE,
- .cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
- CRYPTO_ALG_NEED_FALLBACK,
- .cra_ctxsize = sizeof(struct meson_cipher_tfm_ctx),
- .cra_module = THIS_MODULE,
- .cra_alignmask = 0xf,
- .cra_init = meson_cipher_init,
- .cra_exit = meson_cipher_exit,
- },
- .min_keysize = AES_MIN_KEY_SIZE,
- .max_keysize = AES_MAX_KEY_SIZE,
- .setkey = meson_aes_setkey,
- .encrypt = meson_skencrypt,
- .decrypt = meson_skdecrypt,
- },
- .alg.skcipher.op = {
- .do_one_request = meson_handle_cipher_request,
- },
-},
-};
-
static int meson_debugfs_show(struct seq_file *seq, void *v)
{
struct meson_dev *mc __maybe_unused = seq->private;
@@ -138,20 +78,8 @@ static int meson_debugfs_show(struct seq_file *seq, void *v)
0ul);
#endif

- for (i = 0; i < ARRAY_SIZE(mc_algs); i++) {
- switch (mc_algs[i].type) {
- case CRYPTO_ALG_TYPE_SKCIPHER:
- seq_printf(seq, "%s %s %lu %lu\n",
- mc_algs[i].alg.skcipher.base.base.cra_driver_name,
- mc_algs[i].alg.skcipher.base.base.cra_name,
-#ifdef CONFIG_CRYPTO_DEV_AMLOGIC_GXL_DEBUG
- mc_algs[i].stat_req, mc_algs[i].stat_fb);
-#else
- 0ul, 0ul);
-#endif
- break;
- }
- }
+ meson_cipher_debugfs_show(seq, v);
+
return 0;
}
DEFINE_SHOW_ATTRIBUTE(meson_debugfs);
@@ -228,38 +156,40 @@ static int meson_allocate_chanlist(struct meson_dev *mc)
return err;
}

-static int meson_register_algs(struct meson_dev *mc)
+int meson_register_algs(struct meson_dev *mc, struct meson_alg_template *algs,
+ unsigned int count)
{
int err, i;

- for (i = 0; i < ARRAY_SIZE(mc_algs); i++) {
- mc_algs[i].mc = mc;
- switch (mc_algs[i].type) {
+ for (i = 0; i < count; i++) {
+ switch (algs[i].type) {
case CRYPTO_ALG_TYPE_SKCIPHER:
- err = crypto_engine_register_skcipher(&mc_algs[i].alg.skcipher);
+ err = crypto_engine_register_skcipher(&algs[i].alg.skcipher);
if (err) {
dev_err(mc->dev, "Fail to register %s\n",
- mc_algs[i].alg.skcipher.base.base.cra_name);
- mc_algs[i].mc = NULL;
+ algs[i].alg.skcipher.base.base.cra_name);
+ meson_unregister_algs(mc, algs, count);
return err;
}
break;
}
+ algs[i].mc = mc;
}

return 0;
}

-static void meson_unregister_algs(struct meson_dev *mc)
+void meson_unregister_algs(struct meson_dev *mc, struct meson_alg_template *algs,
+ unsigned int count)
{
int i;

- for (i = 0; i < ARRAY_SIZE(mc_algs); i++) {
- if (!mc_algs[i].mc)
+ for (i = 0; i < count; i++) {
+ if (!algs[i].mc)
continue;
- switch (mc_algs[i].type) {
+ switch (algs[i].type) {
case CRYPTO_ALG_TYPE_SKCIPHER:
- crypto_engine_unregister_skcipher(&mc_algs[i].alg.skcipher);
+ crypto_engine_unregister_skcipher(&algs[i].alg.skcipher);
break;
}
}
@@ -318,9 +248,9 @@ static int meson_crypto_probe(struct platform_device *pdev)
if (err)
goto error_flow;

- err = meson_register_algs(mc);
+ err = meson_cipher_register(mc);
if (err)
- goto error_alg;
+ goto error_flow;

if (IS_ENABLED(CONFIG_CRYPTO_DEV_AMLOGIC_GXL_DEBUG)) {
struct dentry *dbgfs_dir;
@@ -334,8 +264,6 @@ static int meson_crypto_probe(struct platform_device *pdev)
}

return 0;
-error_alg:
- meson_unregister_algs(mc);
error_flow:
meson_free_chanlist(mc, mc->flow_cnt - 1);
return err;
@@ -349,7 +277,7 @@ static void meson_crypto_remove(struct platform_device *pdev)
debugfs_remove_recursive(mc->dbgfs_dir);
#endif

- meson_unregister_algs(mc);
+ meson_cipher_unregister(mc);

meson_free_chanlist(mc, mc->flow_cnt - 1);
}
diff --git a/drivers/crypto/amlogic/amlogic-gxl.h b/drivers/crypto/amlogic/amlogic-gxl.h
index e27908992ae3..0a03e8144977 100644
--- a/drivers/crypto/amlogic/amlogic-gxl.h
+++ b/drivers/crypto/amlogic/amlogic-gxl.h
@@ -167,10 +167,12 @@ void meson_dma_start(struct meson_dev *mc, int flow);

int meson_enqueue(struct crypto_async_request *areq, u32 type);

-int meson_aes_setkey(struct crypto_skcipher *tfm, const u8 *key,
- unsigned int keylen);
-int meson_cipher_init(struct crypto_tfm *tfm);
-void meson_cipher_exit(struct crypto_tfm *tfm);
-int meson_skdecrypt(struct skcipher_request *areq);
-int meson_skencrypt(struct skcipher_request *areq);
+int meson_register_algs(struct meson_dev *mc, struct meson_alg_template *algs,
+ unsigned int count);
+void meson_unregister_algs(struct meson_dev *mc, struct meson_alg_template *algs,
+ unsigned int count);
+
+int meson_cipher_register(struct meson_dev *mc);
+void meson_cipher_unregister(struct meson_dev *mc);
+void meson_cipher_debugfs_show(struct seq_file *seq, void *v);
int meson_handle_cipher_request(struct crypto_engine *engine, void *areq);
--
2.34.1