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| author | Keith Busch <keith.busch@intel.com> | 2016-09-13 09:21:47 -0600 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2016-10-04 16:13:57 +0200 |
| commit | 5f92635462d64f09f4643e7c15c48ea7a1f7d2b7 (patch) | |
| tree | 36bd5ffbf1923034222f2b656aba6430517e6d36 /arch/mips/txx9 | |
| parent | 44ce9a9ae977736fe7f470a7b1e506028375165a (diff) | |
| download | linux-stable-5f92635462d64f09f4643e7c15c48ea7a1f7d2b7.tar.gz linux-stable-5f92635462d64f09f4643e7c15c48ea7a1f7d2b7.tar.bz2 linux-stable-5f92635462d64f09f4643e7c15c48ea7a1f7d2b7.zip | |
MIPS: PCI: Reduce stack frame usage
This patch removes creating a fake pci device in MIPS early config
access and instead just uses the pci bus to get the same functionality.
The struct pci_dev is too large to allocate on the stack, and was relying
on compiler optimizations to remove its usage.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14253/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/txx9')
| -rw-r--r-- | arch/mips/txx9/generic/pci.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/arch/mips/txx9/generic/pci.c b/arch/mips/txx9/generic/pci.c index 1f6bc9a3036c..285d84e5c7b9 100644 --- a/arch/mips/txx9/generic/pci.c +++ b/arch/mips/txx9/generic/pci.c @@ -29,12 +29,8 @@ static int __init early_read_config_word(struct pci_controller *hose, int top_bus, int bus, int devfn, int offset, u16 *value) { - struct pci_dev fake_dev; struct pci_bus fake_bus; - fake_dev.bus = &fake_bus; - fake_dev.sysdata = hose; - fake_dev.devfn = devfn; fake_bus.number = bus; fake_bus.sysdata = hose; fake_bus.ops = hose->pci_ops; @@ -45,7 +41,7 @@ early_read_config_word(struct pci_controller *hose, else fake_bus.parent = NULL; - return pci_read_config_word(&fake_dev, offset, value); + return pci_bus_read_config_word(&fake_bus, devfn, offset, value); } int __init txx9_pci66_check(struct pci_controller *hose, int top_bus, |