#ifndef __NET_WEXT_H #define __NET_WEXT_H #include struct net; #ifdef CONFIG_WEXT_CORE int wext_handle_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd, void __user *arg); int compat_wext_handle_ioctl(struct net *net, unsigned int cmd, unsigned long arg); struct iw_statistics *get_wireless_stats(struct net_device *dev); int call_commit_handler(struct net_device *dev); #else static inline int wext_handle_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd, void __user *arg) { return -EINVAL; } static inline int compat_wext_handle_ioctl(struct net *net, unsigned int cmd, unsigned long arg) { return -EINVAL; } #endif #ifdef CONFIG_WEXT_PROC int wext_proc_init(struct net *net); void wext_proc_exit(struct net *net); #else static inline int wext_proc_init(struct net *net) { return 0; } static inline void wext_proc_exit(struct net *net) { return; } #endif #ifdef CONFIG_WEXT_PRIV int ioctl_private_call(struct net_device *dev, struct iwreq *iwr, unsigned int cmd, struct iw_request_info *info, iw_handler handler); int compat_private_call(struct net_device *dev, struct iwreq *iwr, unsigned int cmd, struct iw_request_info *info, iw_handler handler); int iw_handler_get_private(struct net_device * dev, struct iw_request_info * info, union iwreq_data * wrqu, char * extra); #else #define ioctl_private_call NULL #define compat_private_call NULL #endif #endif /* __NET_WEXT_H */ lass='sub right'>Tobias Klauser
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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2017-02-03 17:10:28 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2017-02-08 23:36:29 +1100
commitd7df2443cd5f67fc6ee7c05a88e4996e8177f91b (patch)
tree098a7c0ca4fceb8a65cb1f693c9d71990388933d /tools/lib/bpf/bpf.h
parenta0615a16f7d0ceb5804d295203c302d496d8ee91 (diff)
powerpc/mm: Fix spurrious segfaults on radix with autonuma
When autonuma (Automatic NUMA balancing) marks a PTE inaccessible it clears all the protection bits but leave the PTE valid. With the Radix MMU, an attempt at executing from such a PTE will take a fault with bit 35 of SRR1 set "SRR1_ISI_N_OR_G". It is thus incorrect to treat all such faults as errors. We should pass them to handle_mm_fault() for autonuma to deal with. The case of pages that are really not executable is handled by the existing test for VM_EXEC further down. That leaves us with catching the kernel attempts at executing user pages. We can catch that earlier, even before we do find_vma. It is never valid on powerpc for the kernel to take an exec fault to begin with. So fold that test with the existing test for the kernel faulting on kernel addresses to bail out early. Fixes: 1d18ad026844 ("powerpc/mm: Detect instruction fetch denied and report") Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'tools/lib/bpf/bpf.h')