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ssb: Put host pointers into a union

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This slightly shrinks the structure.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Michael Buesch
2009-10-09 20:32:10 +02:00
committed by John W. Linville
parent 899110fe4e
commit 8b45499ccb
2 changed files with 14 additions and 10 deletions
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20
include/linux/ssb/ssb.h
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@@ -269,7 +269,8 @@ struct ssb_bus {
const struct ssb_bus_ops *ops;
/* The core in the basic address register window. (PCI bus only) */
/* The core currently mapped into the MMIO window.
* Not valid on all host-buses. So don't use outside of SSB. */
struct ssb_device *mapped_device;
union {
/* Currently mapped PCMCIA segment. (bustype == SSB_BUSTYPE_PCMCIA only) */
@@ -281,14 +282,17 @@ struct ssb_bus {
* On PCMCIA-host busses this is used to protect the whole MMIO access. */
spinlock_t bar_lock;
/* The bus this backplane is running on. */
/* The host-bus this backplane is running on. */
enum ssb_bustype bustype;
/* Pointer to the PCI bus (only valid if bustype == SSB_BUSTYPE_PCI). */
struct pci_dev *host_pci;
/* Pointer to the PCMCIA device (only if bustype == SSB_BUSTYPE_PCMCIA). */
struct pcmcia_device *host_pcmcia;
/* Pointer to the SDIO device (only if bustype == SSB_BUSTYPE_SDIO). */
struct sdio_func *host_sdio;
/* Pointers to the host-bus. Check bustype before using any of these pointers. */
union {
/* Pointer to the PCI bus (only valid if bustype == SSB_BUSTYPE_PCI). */
struct pci_dev *host_pci;
/* Pointer to the PCMCIA device (only if bustype == SSB_BUSTYPE_PCMCIA). */
struct pcmcia_device *host_pcmcia;
/* Pointer to the SDIO device (only if bustype == SSB_BUSTYPE_SDIO). */
struct sdio_func *host_sdio;
};
/* See enum ssb_quirks */
unsigned int quirks;