diff options
| author | Jiang Liu <jiang.liu@linux.intel.com> | 2015-07-09 16:00:36 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2015-11-06 15:56:42 +0800 |
| commit | 0542e3841320f0d54d47fb06d9d84051cea97026 (patch) | |
| tree | 7acc1dd3dc9a8b3fbc88a0b8a5ca7b294eaa0bf7 /include | |
| parent | 449026c3a52abdc6fd4693b369a911f197b8dd3a (diff) | |
PCI: Add helper function msi_desc_to_pci_sysdata()
Add helper function msi_desc_to_pci_sysdata() to retrieve sysdata from
an MSI descriptor. To avoid pulling include/linux/pci.h into
include/linux/msi.h, msi_desc_to_pci_sysdata() is implemented as a normal
function instead of an inline function.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Reviewed-by: Yijing Wang <wangyijing@huawei.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Stuart Yoder <stuart.yoder@freescale.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Alexander Gordeev <agordeev@redhat.com>
Link: http://lkml.kernel.org/r/1436428847-8886-2-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
(cherry picked from commit c179c9b978b90bdf9cb39f5b5716dede157f1eaf)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/msi.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/msi.h b/include/linux/msi.h index cbdfaef05d47..5d71dc25d26a 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -60,6 +60,13 @@ static inline struct pci_dev *msi_desc_to_pci_dev(struct msi_desc *desc) { return desc->dev; } + +void *msi_desc_to_pci_sysdata(struct msi_desc *desc); +#else /* CONFIG_PCI_MSI */ +static inline void *msi_desc_to_pci_sysdata(struct msi_desc *desc) +{ + return NULL; +} #endif /* CONFIG_PCI_MSI */ void __pci_read_msi_msg(struct msi_desc *entry, struct msi_msg *msg); |