This is a note to let you know that I've just added the patch titled crypto: rockchip - do not do custom power management to the 6.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: crypto-rockchip-do-not-do-custom-power-management.patch and it can be found in the queue-6.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit ab562767e7a4a4114cd1679b0fb991dd14895122 Author: Corentin Labbe <clabbe@xxxxxxxxxxxx> Date: Tue Sep 27 07:54:41 2022 +0000 crypto: rockchip - do not do custom power management [ Upstream commit c50ef1411c8cbad0c7db100c477126076b6e3348 ] The clock enable/disable at tfm init/exit is fragile, if 2 tfm are init in the same time and one is removed just after, it will leave the hardware uncloked even if a user remains. Instead simply enable clocks at probe time. We will do PM later. Fixes: ce0183cb6464b ("crypto: rockchip - switch to skcipher API") Reviewed-by: John Keeping <john@xxxxxxxxxxxx> Signed-off-by: Corentin Labbe <clabbe@xxxxxxxxxxxx> Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/crypto/rockchip/rk3288_crypto.c b/drivers/crypto/rockchip/rk3288_crypto.c index 35d73061d156..5f8444b9633a 100644 --- a/drivers/crypto/rockchip/rk3288_crypto.c +++ b/drivers/crypto/rockchip/rk3288_crypto.c @@ -395,8 +395,7 @@ static int rk_crypto_probe(struct platform_device *pdev) rk_crypto_done_task_cb, (unsigned long)crypto_info); crypto_init_queue(&crypto_info->queue, 50); - crypto_info->enable_clk = rk_crypto_enable_clk; - crypto_info->disable_clk = rk_crypto_disable_clk; + rk_crypto_enable_clk(crypto_info); crypto_info->load_data = rk_load_data; crypto_info->unload_data = rk_unload_data; crypto_info->enqueue = rk_crypto_enqueue; @@ -423,6 +422,7 @@ static int rk_crypto_remove(struct platform_device *pdev) struct rk_crypto_info *crypto_tmp = platform_get_drvdata(pdev); rk_crypto_unregister(); + rk_crypto_disable_clk(crypto_tmp); tasklet_kill(&crypto_tmp->done_task); tasklet_kill(&crypto_tmp->queue_task); return 0; diff --git a/drivers/crypto/rockchip/rk3288_crypto.h b/drivers/crypto/rockchip/rk3288_crypto.h index 97278c2574ff..2fa7131e4060 100644 --- a/drivers/crypto/rockchip/rk3288_crypto.h +++ b/drivers/crypto/rockchip/rk3288_crypto.h @@ -220,8 +220,6 @@ struct rk_crypto_info { int (*start)(struct rk_crypto_info *dev); int (*update)(struct rk_crypto_info *dev); void (*complete)(struct crypto_async_request *base, int err); - int (*enable_clk)(struct rk_crypto_info *dev); - void (*disable_clk)(struct rk_crypto_info *dev); int (*load_data)(struct rk_crypto_info *dev, struct scatterlist *sg_src, struct scatterlist *sg_dst); diff --git a/drivers/crypto/rockchip/rk3288_crypto_ahash.c b/drivers/crypto/rockchip/rk3288_crypto_ahash.c index ed03058497bc..49017d1fb510 100644 --- a/drivers/crypto/rockchip/rk3288_crypto_ahash.c +++ b/drivers/crypto/rockchip/rk3288_crypto_ahash.c @@ -301,7 +301,7 @@ static int rk_cra_hash_init(struct crypto_tfm *tfm) sizeof(struct rk_ahash_rctx) + crypto_ahash_reqsize(tctx->fallback_tfm)); - return tctx->dev->enable_clk(tctx->dev); + return 0; } static void rk_cra_hash_exit(struct crypto_tfm *tfm) @@ -309,7 +309,6 @@ static void rk_cra_hash_exit(struct crypto_tfm *tfm) struct rk_ahash_ctx *tctx = crypto_tfm_ctx(tfm); free_page((unsigned long)tctx->dev->addr_vir); - return tctx->dev->disable_clk(tctx->dev); } struct rk_crypto_tmp rk_ahash_sha1 = { diff --git a/drivers/crypto/rockchip/rk3288_crypto_skcipher.c b/drivers/crypto/rockchip/rk3288_crypto_skcipher.c index 5bbf0d2722e1..8c44a19eab75 100644 --- a/drivers/crypto/rockchip/rk3288_crypto_skcipher.c +++ b/drivers/crypto/rockchip/rk3288_crypto_skcipher.c @@ -388,8 +388,10 @@ static int rk_ablk_init_tfm(struct crypto_skcipher *tfm) ctx->dev->update = rk_ablk_rx; ctx->dev->complete = rk_crypto_complete; ctx->dev->addr_vir = (char *)__get_free_page(GFP_KERNEL); + if (!ctx->dev->addr_vir) + return -ENOMEM; - return ctx->dev->addr_vir ? ctx->dev->enable_clk(ctx->dev) : -ENOMEM; + return 0; } static void rk_ablk_exit_tfm(struct crypto_skcipher *tfm) @@ -397,7 +399,6 @@ static void rk_ablk_exit_tfm(struct crypto_skcipher *tfm) struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); free_page((unsigned long)ctx->dev->addr_vir); - ctx->dev->disable_clk(ctx->dev); } struct rk_crypto_tmp rk_ecb_aes_alg = {