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[98.128.249.223]) by smtp.gmail.com with ESMTPSA id u16sm2887724ljo.22.2020.01.09.04.37.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Jan 2020 04:37:22 -0800 (PST) From: Jens Wiklander To: tee-dev@lists.linaro.org, linux-kernel@vger.kernel.org Cc: Jerome Forissier , Sumit Garg , Etienne Carriere , Rijo Thomas , Devaraj Rangasamy , Jens Wiklander Subject: [PATCH 2/5] tee: remove unused tee_shm_priv_alloc() Date: Thu, 9 Jan 2020 13:36:48 +0100 Message-Id: <20200109123651.18520-3-jens.wiklander@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200109123651.18520-1-jens.wiklander@linaro.org> References: <20200109123651.18520-1-jens.wiklander@linaro.org> tee_shm_priv_alloc() isn't useful in the current state and it's also not not used so remove it. Signed-off-by: Jens Wiklander --- drivers/tee/tee_shm.c | 33 ++------------------------------- include/linux/tee_drv.h | 12 ------------ 2 files changed, 2 insertions(+), 43 deletions(-) -- 2.17.1 diff --git a/drivers/tee/tee_shm.c b/drivers/tee/tee_shm.c index 6cabb834db7d..8afe08b23242 100644 --- a/drivers/tee/tee_shm.c +++ b/drivers/tee/tee_shm.c @@ -95,20 +95,14 @@ static const struct dma_buf_ops tee_shm_dma_buf_ops = { .mmap = tee_shm_op_mmap, }; -static struct tee_shm *__tee_shm_alloc(struct tee_context *ctx, - struct tee_device *teedev, - size_t size, u32 flags) +struct tee_shm *tee_shm_alloc(struct tee_context *ctx, size_t size, u32 flags) { + struct tee_device *teedev = ctx->teedev; struct tee_shm_pool_mgr *poolm = NULL; struct tee_shm *shm; void *ret; int rc; - if (ctx && ctx->teedev != teedev) { - dev_err(teedev->dev.parent, "ctx and teedev mismatch\n"); - return ERR_PTR(-EINVAL); - } - if (!(flags & TEE_SHM_MAPPED)) { dev_err(teedev->dev.parent, "only mapped allocations supported\n"); @@ -188,31 +182,8 @@ static struct tee_shm *__tee_shm_alloc(struct tee_context *ctx, tee_device_put(teedev); return ret; } - -/** - * tee_shm_alloc() - Allocate shared memory - * @ctx: Context that allocates the shared memory - * @size: Requested size of shared memory - * @flags: Flags setting properties for the requested shared memory. - * - * Memory allocated as global shared memory is automatically freed when the - * TEE file pointer is closed. The @flags field uses the bits defined by - * TEE_SHM_* in . TEE_SHM_MAPPED must currently always be - * set. If TEE_SHM_DMA_BUF global shared memory will be allocated and - * associated with a dma-buf handle, else driver private memory. - */ -struct tee_shm *tee_shm_alloc(struct tee_context *ctx, size_t size, u32 flags) -{ - return __tee_shm_alloc(ctx, ctx->teedev, size, flags); -} EXPORT_SYMBOL_GPL(tee_shm_alloc); -struct tee_shm *tee_shm_priv_alloc(struct tee_device *teedev, size_t size) -{ - return __tee_shm_alloc(NULL, teedev, size, TEE_SHM_MAPPED); -} -EXPORT_SYMBOL_GPL(tee_shm_priv_alloc); - struct tee_shm *tee_shm_register(struct tee_context *ctx, unsigned long addr, size_t length, u32 flags) { diff --git a/include/linux/tee_drv.h b/include/linux/tee_drv.h index cbddb883a7f8..42687f6c546d 100644 --- a/include/linux/tee_drv.h +++ b/include/linux/tee_drv.h @@ -315,18 +315,6 @@ void *tee_get_drvdata(struct tee_device *teedev); */ struct tee_shm *tee_shm_alloc(struct tee_context *ctx, size_t size, u32 flags); -/** - * tee_shm_priv_alloc() - Allocate shared memory privately - * @dev: Device that allocates the shared memory - * @size: Requested size of shared memory - * - * Allocates shared memory buffer that is not associated with any client - * context. Such buffers are owned by TEE driver and used for internal calls. - * - * @returns a pointer to 'struct tee_shm' - */ -struct tee_shm *tee_shm_priv_alloc(struct tee_device *teedev, size_t size); - /** * tee_shm_register() - Register shared memory buffer * @ctx: Context that registers the shared memory