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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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5f92c32936
1) sun4{u,v}_build_msi() have improper return value handling.
We should always return negative error codes, instead of
using the magic value "0" which could in fact be a valid
MSI number.
2) sun4{u,v}_build_msi() should return -ENOMEM instead of
calling prom_prom() halt with kzalloc() of the interrupt
data fails.
3) We 'remembered' the MSI number using a singleton in the
struct device archdata area, this doesn't work for MSI-X
which can cause multiple MSIs assosciated with one device.
Delete that archdata member, and instead store the MSI
number in the IRQ chip data area.
Signed-off-by: David S. Miller <davem@davemloft.net>
22 lines
369 B
C
22 lines
369 B
C
/*
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* Arch specific extensions to struct device
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*
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* This file is released under the GPLv2
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*/
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#ifndef _ASM_SPARC64_DEVICE_H
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#define _ASM_SPARC64_DEVICE_H
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struct device_node;
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struct of_device;
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struct dev_archdata {
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void *iommu;
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void *stc;
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void *host_controller;
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struct device_node *prom_node;
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struct of_device *op;
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};
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#endif /* _ASM_SPARC64_DEVICE_H */
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