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usb: gadget: lpc32xx_udc: don't use GFP_DMA when calling dma_alloc_coherent()

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dma_alloc_coherent() allocates the DMA buffer with the device's addressing
limitation in mind; the DMA core picks the zone from the device's coherent
DMA mask and ignores GFP_DMA passed by the caller.  Remove the redundant
GFP_DMA flag.

Link: https://lore.kernel.org/20260903111836.1777265-7-hebaoquan@kylinos.cn
Signed-off-by: Baoquan He <hebaoquan@kylinos.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Harry Yoo <harry@kernel.org>
This commit is contained in:
Baoquan He 2026-09-03 19:18:29 +08:00 committed by Andrew Morton
parent 5f0f758d36
commit fd3d2126e7
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/gadget/udc/lpc32xx_udc.c
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@ -3080,7 +3080,7 @@ static int lpc32xx_udc_probe(struct platform_device *pdev)
/* Allocate memory for the UDCA */
udc->udca_v_base = dma_alloc_coherent(&pdev->dev, UDCA_BUFF_SIZE,
&dma_handle,
(GFP_KERNEL | GFP_DMA));
GFP_KERNEL);
if (!udc->udca_v_base) {
dev_err(udc->dev, "error getting UDCA region\n");
retval = -ENOMEM;