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#ifndef BPF_I_H
#define BPF_I_H

#include <linux/filter.h>
#include <stdint.h>
#include <stdlib.h>

#include "bpf_insns.h"
#include "bpf_ext.h"
#include "config.h"
#include "die.h"

extern void bpf_dump_op_table(void);
extern void bpf_dump_all(struct sock_fprog *bpf);
extern int __bpf_validate(const struct sock_fprog *bpf);
extern uint32_t bpf_run_filter(const struct sock_fprog *bpf, uint8_t *packet,
			       size_t plen);
extern void bpf_attach_to_sock(int sock, struct sock_fprog *bpf);
extern void bpf_detach_from_sock(int sock);
extern int enable_kernel_bpf_jit_compiler(void);
extern void bpf_parse_rules(char *rulefile, struct sock_fprog *bpf, uint32_t link_type);
#if defined(HAVE_TCPDUMP_LIKE_FILTER) && defined(NEED_TCPDUMP_LIKE_FILTER)
extern void bpf_try_compile(const char *rulefile, struct sock_fprog *bpf,
			    uint32_t link_type);
#else
static inline void bpf_try_compile(const char *rulefile,
				   struct sock_fprog *bpf __maybe_unused,
				   uint32_t link_type __maybe_unused)
{
	panic("Cannot open file %s!\n", rulefile);
}
#endif
static inline void bpf_release(struct sock_fprog *bpf)
{
	free(bpf->filter);
}

#endif /* BPF_I_H */
ation/devicetree?id=d2cf909cda5f8c5609cb7ed6cda816c3e15528c7&id2=1001354ca34179f3db924eb66672442a173147dc'>diff)
powerpc/mm: Prevent unlikely crash in copro_calculate_slb()
If a cxl adapter faults on an invalid address for a kernel context, we may enter copro_calculate_slb() with a NULL mm pointer (kernel context) and an effective address which looks like a user address. Which will cause a crash when dereferencing mm. It is clearly an AFU bug, but there's no reason to crash either. So return an error, so that cxl can ack the interrupt with an address error. Fixes: 73d16a6e0e51 ("powerpc/cell: Move data segment faulting code out of cell platform") Cc: stable@vger.kernel.org # v3.18+ Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'Documentation/devicetree')