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tty: serial: stm32-usart: Remove set but unused 'cookie' variables
Fixes the following W=1 kernel build warning(s): drivers/tty/serial/stm32-usart.c: In function ‘stm32_transmit_chars_dma’: drivers/tty/serial/stm32-usart.c:353:15: warning: variable ‘cookie’ set but not used [-Wunused-but-set-variable] drivers/tty/serial/stm32-usart.c: In function ‘stm32_of_dma_rx_probe’: drivers/tty/serial/stm32-usart.c:1090:15: warning: variable ‘cookie’ set but not used [-Wunused-but-set-variable] Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Slaby <jirislaby@kernel.org> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Cc: Gerald Baeza <gerald.baeza@st.com> Cc: linux-serial@vger.kernel.org Cc: linux-stm32@st-md-mailman.stormreply.com Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20201104193549.4026187-29-lee.jones@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 2 additions and 4 deletions
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@ -350,7 +350,6 @@ static void stm32_transmit_chars_dma(struct uart_port *port)
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struct stm32_usart_offsets *ofs = &stm32port->info->ofs;
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struct circ_buf *xmit = &port->state->xmit;
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struct dma_async_tx_descriptor *desc = NULL;
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dma_cookie_t cookie;
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unsigned int count, i;
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if (stm32port->tx_dma_busy)
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@ -394,7 +393,7 @@ static void stm32_transmit_chars_dma(struct uart_port *port)
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desc->callback_param = port;
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/* Push current DMA TX transaction in the pending queue */
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cookie = dmaengine_submit(desc);
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dmaengine_submit(desc);
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/* Issue pending DMA TX requests */
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dma_async_issue_pending(stm32port->tx_ch);
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@ -1087,7 +1086,6 @@ static int stm32_of_dma_rx_probe(struct stm32_port *stm32port,
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struct device *dev = &pdev->dev;
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struct dma_slave_config config;
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struct dma_async_tx_descriptor *desc = NULL;
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dma_cookie_t cookie;
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int ret;
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/* Request DMA RX channel */
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@ -1132,7 +1130,7 @@ static int stm32_of_dma_rx_probe(struct stm32_port *stm32port,
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desc->callback_param = NULL;
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/* Push current DMA transaction in the pending queue */
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cookie = dmaengine_submit(desc);
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dmaengine_submit(desc);
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/* Issue pending DMA requests */
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dma_async_issue_pending(stm32port->rx_ch);
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