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fs: Use ARCH_DMA_MINALIGN as default alignment for fs_read_alloc()

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The comment above fs_read_alloc() explains:

    @align: Alignment to use for memory allocation (0 for default)

However, in the actual implementation, there is no alignment when @align is
zero.

This current default is probably fine for most cases. But for some block
devices which transfer data via DMA, ARCH_DMA_MINALIGN is needed.

Change the default alignment to ARCH_DMA_MINALIGN.

Fixes: de7b5a8a1a ("fs: Create functions to load and allocate a file")
Signed-off-by: Nam Cao <namcao@linutronix.de>
Tested-by: Javier Fernandez Pastrana <javier.pastrana@linutronix.de>
This commit is contained in:
Nam Cao
2024-11-07 16:01:06 +01:00
committed by Tom Rini
parent 5efd63c93c
commit 6ea8dc661b
2 changed files with 5 additions and 1 deletions
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2
include/fs.h
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@@ -325,7 +325,7 @@ int do_fs_types(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[]);
*
* @fname: Filename to read
* @size: Size of file to read (must be correct!)
* @align: Alignment to use for memory allocation (0 for default)
* @align: Alignment to use for memory allocation (0 for default: ARCH_DMA_MINALIGN)
* @bufp: On success, returns the allocated buffer with the nul-terminated file
* in it
* Return: 0 if OK, -ENOMEM if out of memory, -EIO if read failed