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author | Arnd Bergmann <arnd@arndb.de> | 2023-11-22 18:15:03 +0100 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-12-13 18:18:16 +0100 |
commit | d896c47f8cfc61b138533853af272185875afff3 (patch) | |
tree | 59f3a8b4b506f1e483ad83ac5eed0c091b527748 /drivers/tty/serial/sc16is7xx.c | |
parent | 880b035bc64ede44364a7bf6c7842b77d71b2389 (diff) |
ARM: PL011: Fix DMA support
commit 58ac1b3799799069d53f5bf95c093f2fe8dd3cc5 upstream.
Since there is no guarantee that the memory returned by
dma_alloc_coherent() is associated with a 'struct page', using the
architecture specific phys_to_page() is wrong, but using
virt_to_page() would be as well.
Stop using sg lists altogether and just use the *_single() functions
instead. This also simplifies the code a bit since the scatterlists in
this driver always have only one entry anyway.
https://lore.kernel.org/lkml/86db0fe5-930d-4cbb-bd7d-03367da38951@app.fastmail.com/
Use consistent names for dma buffers
gc: Add a commit log from the initial thread:
https://lore.kernel.org/lkml/86db0fe5-930d-4cbb-bd7d-03367da38951@app.fastmail.com/
Use consistent names for dma buffers
Fixes: cb06ff102e2d7 ("ARM: PL011: Add support for Rx DMA buffer polling.")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20231122171503.235649-1-gregory.clement@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/sc16is7xx.c')
0 files changed, 0 insertions, 0 deletions