PCI/MSI: Introduce helpers to hide struct msi_desc implementation details
Introduce helpers to hide struct msi_desc implementation details, so we could easily support non-PCI-compliant MSI devices later by moving msi_list into struct device. Signed-off-by: NJiang Liu <jiang.liu@linux.intel.com> Cc: Tony Luck <tony.luck@intel.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Grant Likely <grant.likely@linaro.org> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Yijing Wang <wangyijing@huawei.com> Cc: Yingjoe Chen <yingjoe.chen@mediatek.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Alexander Gordeev <agordeev@redhat.com> Link: http://lkml.kernel.org/r/1416061447-9472-6-git-send-email-jiang.liu@linux.intel.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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