u-boot/drivers/pci/pcie_layerscape_fixup_common.h
Masahiro Yamada b75d8dc564 treewide: convert bd_t to struct bd_info by coccinelle
The Linux coding style guide (Documentation/process/coding-style.rst)
clearly says:

  It's a **mistake** to use typedef for structures and pointers.

Besides, using typedef for structures is annoying when you try to make
headers self-contained.

Let's say you have the following function declaration in a header:

  void foo(bd_t *bd);

This is not self-contained since bd_t is not defined.

To tell the compiler what 'bd_t' is, you need to include <asm/u-boot.h>

  #include <asm/u-boot.h>
  void foo(bd_t *bd);

Then, the include direcective pulls in more bloat needlessly.

If you use 'struct bd_info' instead, it is enough to put a forward
declaration as follows:

  struct bd_info;
  void foo(struct bd_info *bd);

Right, typedef'ing bd_t is a mistake.

I used coccinelle to generate this commit.

The semantic patch that makes this change is as follows:

  <smpl>
  @@
  typedef bd_t;
  @@
  -bd_t
  +struct bd_info
  </smpl>

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-07-17 09:30:13 -04:00

23 lines
583 B
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2019-2020 NXP
*
* PCIe DT fixup for NXP Layerscape SoCs
* Author: Wasim Khan <wasim.khan@nxp.com>
*
*/
#ifndef _PCIE_LAYERSCAPE_FIXUP_COMMON_H_
#define _PCIE_LAYERSCAPE_FIXUP_COMMON_H_
#include <common.h>
void ft_pci_setup_ls(void *blob, struct bd_info *bd);
#ifdef CONFIG_PCIE_LAYERSCAPE_GEN4
void ft_pci_setup_ls_gen4(void *blob, struct bd_info *bd);
#endif /* CONFIG_PCIE_LAYERSCAPE_GEN4 */
int pcie_next_streamid(int currentid, int id);
int pcie_board_fix_fdt(void *fdt);
#endif //_PCIE_LAYERSCAPE_FIXUP_COMMON_H_