linux-kernel - [PATCH 3/4] crypto: sun8i-ce-cipher - use IS

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Message-ID: <20250425124517.2225963-3-ovidiu.panait.oss@gmail.com>
Date: Fri, 25 Apr 2025 15:45:16 +0300
From: Ovidiu Panait <ovidiu.panait.oss@...il.com>
To: clabbe.montjoie@...il.com,
	herbert@...dor.apana.org.au,
	davem@...emloft.net,
	linux-crypto@...r.kernel.org
Cc: wens@...e.org,
	jernej.skrabec@...il.com,
	samuel@...lland.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-sunxi@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	Ovidiu Panait <ovidiu.panait.oss@...il.com>
Subject: [PATCH 3/4] crypto: sun8i-ce-cipher - use IS_ENABLED() checks for debugfs stats

Add IS_ENABLED(CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG) checks before the
fallback counter updates to make sure the code is not included when
debugfs statistics support is not enabled.

Also, drop the existing ifdef guards, since 'struct sun8i_ce_alg_template'
is always defined, even with CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG disabled.

Signed-off-by: Ovidiu Panait <ovidiu.panait.oss@...il.com>
---
 .../allwinner/sun8i-ce/sun8i-ce-cipher.c      | 46 ++++++++++++-------
 1 file changed, 30 insertions(+), 16 deletions(-)

diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
index f03a8fa7bfa2..433cd18f0b5b 100644
--- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
+++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
@@ -34,22 +34,30 @@ static int sun8i_ce_cipher_need_fallback(struct skcipher_request *areq)
 
 	if (sg_nents_for_len(areq->src, areq->cryptlen) > MAX_SG ||
 	    sg_nents_for_len(areq->dst, areq->cryptlen) > MAX_SG) {
-		algt->stat_fb_maxsg++;
+		if (IS_ENABLED(CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG))
+			algt->stat_fb_maxsg++;
+
 		return true;
 	}
 
 	if (areq->cryptlen < crypto_skcipher_ivsize(tfm)) {
-		algt->stat_fb_leniv++;
+		if (IS_ENABLED(CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG))
+			algt->stat_fb_leniv++;
+
 		return true;
 	}
 
 	if (areq->cryptlen == 0) {
-		algt->stat_fb_len0++;
+		if (IS_ENABLED(CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG))
+			algt->stat_fb_len0++;
+
 		return true;
 	}
 
 	if (areq->cryptlen % 16) {
-		algt->stat_fb_mod16++;
+		if (IS_ENABLED(CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG))
+			algt->stat_fb_mod16++;
+
 		return true;
 	}
 
@@ -57,12 +65,16 @@ static int sun8i_ce_cipher_need_fallback(struct skcipher_request *areq)
 	sg = areq->src;
 	while (sg) {
 		if (!IS_ALIGNED(sg->offset, sizeof(u32))) {
-			algt->stat_fb_srcali++;
+			if (IS_ENABLED(CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG))
+				algt->stat_fb_srcali++;
+
 			return true;
 		}
 		todo = min(len, sg->length);
 		if (todo % 4) {
-			algt->stat_fb_srclen++;
+			if (IS_ENABLED(CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG))
+				algt->stat_fb_srclen++;
+
 			return true;
 		}
 		len -= todo;
@@ -73,12 +85,16 @@ static int sun8i_ce_cipher_need_fallback(struct skcipher_request *areq)
 	sg = areq->dst;
 	while (sg) {
 		if (!IS_ALIGNED(sg->offset, sizeof(u32))) {
-			algt->stat_fb_dstali++;
+			if (IS_ENABLED(CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG))
+				algt->stat_fb_dstali++;
+
 			return true;
 		}
 		todo = min(len, sg->length);
 		if (todo % 4) {
-			algt->stat_fb_dstlen++;
+			if (IS_ENABLED(CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG))
+				algt->stat_fb_dstlen++;
+
 			return true;
 		}
 		len -= todo;
@@ -101,9 +117,7 @@ static int sun8i_ce_cipher_fallback(struct skcipher_request *areq)
 		algt = container_of(alg, struct sun8i_ce_alg_template,
 				    alg.skcipher.base);
 
-#ifdef CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG
 		algt->stat_fb++;
-#endif
 	}
 
 	skcipher_request_set_tfm(&rctx->fallback_req, op->fallback_tfm);
@@ -147,9 +161,8 @@ static int sun8i_ce_cipher_prepare(struct crypto_engine *engine, void *async_req
 		rctx->op_dir, areq->iv, crypto_skcipher_ivsize(tfm),
 		op->keylen);
 
-#ifdef CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG
-	algt->stat_req++;
-#endif
+	if (IS_ENABLED(CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG))
+		algt->stat_req++;
 
 	flow = rctx->flow;
 
@@ -438,9 +451,10 @@ int sun8i_ce_cipher_init(struct crypto_tfm *tfm)
 	crypto_skcipher_set_reqsize(sktfm, sizeof(struct sun8i_cipher_req_ctx) +
 				    crypto_skcipher_reqsize(op->fallback_tfm));
 
-	memcpy(algt->fbname,
-	       crypto_skcipher_driver_name(op->fallback_tfm),
-	       CRYPTO_MAX_ALG_NAME);
+	if (IS_ENABLED(CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG))
+		memcpy(algt->fbname,
+		       crypto_skcipher_driver_name(op->fallback_tfm),
+		       CRYPTO_MAX_ALG_NAME);
 
 	err = pm_runtime_get_sync(op->ce->dev);
 	if (err < 0)
-- 
2.48.1