Home
last modified time | relevance | path

Searched hist:"5 e87622c4bf3614155781daf5439cf4909adae9a" (Results 1 – 1 of 1) sorted by relevance

/openbmc/linux/drivers/misc/genwqe/
H A Dcard_utils.cdiff 5e87622c4bf3614155781daf5439cf4909adae9a Sat Sep 18 00:20:28 CDT 2021 Christophe JAILLET <christophe.jaillet@wanadoo.fr> misc: genwqe: Remove usage of the deprecated "pci-dma-compat.h" API

In [1], Christoph Hellwig has proposed to remove the wrappers in
include/linux/pci-dma-compat.h.

Some reasons why this API should be removed have been given by Julia
Lawall in [2].

Finally, Arnd Bergmann reminded that the documentation was updated 11 years
ago to only describe the modern linux/dma-mapping.h interfaces and mark the
old bus-specific ones as no longer recommended, see commit 216bf58f4092
("Documentation: convert PCI-DMA-mapping.txt to use the generic DMA API").

A coccinelle script has been used to perform the needed transformation
Only relevant parts are given below.

@@ @@
- PCI_DMA_BIDIRECTIONAL
+ DMA_BIDIRECTIONAL@@

@@
expression e1, e2, e3, e4, e5;
@@
- pci_map_page(e1, e2, e3, e4, e5)
+ dma_map_page(&e1->dev, e2, e3, e4, e5)

@@
expression e1, e2, e3, e4;
@@
- pci_unmap_page(e1, e2, e3, e4)
+ dma_unmap_page(&e1->dev, e2, e3, e4)

@@
expression e1, e2;
@@
- pci_dma_mapping_error(e1, e2)
+ dma_mapping_error(&e1->dev, e2)

[1]: https://lore.kernel.org/kernel-janitors/20200421081257.GA131897@infradead.org/
[2]: https://lore.kernel.org/kernel-janitors/alpine.DEB.2.22.394.2007120902170.2424@hadrien/

Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/590154f2ab113088346ae76c3f13f8b1cbebccbb.1631942274.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>