Searched hist:"0 ffdbce6f4a89bb7c0002904d6438ec83cf05ce7" (Results 1 – 4 of 4) sorted by relevance
| /linux/arch/powerpc/net/ |
| H A D | bpf_jit_comp32.c | diff 0ffdbce6f4a89bb7c0002904d6438ec83cf05ce7 Mon Feb 14 11:41:37 CET 2022 Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> powerpc/bpf: Handle large branch ranges with BPF_EXIT
In some scenarios, it is possible that the program epilogue is outside
the branch range for a BPF_EXIT instruction. Instead of rejecting such
programs, emit epilogue as an alternate exit point from the program.
Track the location of the same so that subsequent exits can take either
of the two paths.
Reported-by: Jordan Niethe <jniethe5@gmail.com>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/33aa2e92645a92712be23b18035a2c6dcb92ff8d.1644834730.git.naveen.n.rao@linux.vnet.ibm.com
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| H A D | bpf_jit.h | diff 0ffdbce6f4a89bb7c0002904d6438ec83cf05ce7 Mon Feb 14 11:41:37 CET 2022 Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> powerpc/bpf: Handle large branch ranges with BPF_EXIT
In some scenarios, it is possible that the program epilogue is outside
the branch range for a BPF_EXIT instruction. Instead of rejecting such
programs, emit epilogue as an alternate exit point from the program.
Track the location of the same so that subsequent exits can take either
of the two paths.
Reported-by: Jordan Niethe <jniethe5@gmail.com>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/33aa2e92645a92712be23b18035a2c6dcb92ff8d.1644834730.git.naveen.n.rao@linux.vnet.ibm.com
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| H A D | bpf_jit_comp64.c | diff 0ffdbce6f4a89bb7c0002904d6438ec83cf05ce7 Mon Feb 14 11:41:37 CET 2022 Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> powerpc/bpf: Handle large branch ranges with BPF_EXIT
In some scenarios, it is possible that the program epilogue is outside
the branch range for a BPF_EXIT instruction. Instead of rejecting such
programs, emit epilogue as an alternate exit point from the program.
Track the location of the same so that subsequent exits can take either
of the two paths.
Reported-by: Jordan Niethe <jniethe5@gmail.com>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/33aa2e92645a92712be23b18035a2c6dcb92ff8d.1644834730.git.naveen.n.rao@linux.vnet.ibm.com
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| H A D | bpf_jit_comp.c | diff 0ffdbce6f4a89bb7c0002904d6438ec83cf05ce7 Mon Feb 14 11:41:37 CET 2022 Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> powerpc/bpf: Handle large branch ranges with BPF_EXIT
In some scenarios, it is possible that the program epilogue is outside
the branch range for a BPF_EXIT instruction. Instead of rejecting such
programs, emit epilogue as an alternate exit point from the program.
Track the location of the same so that subsequent exits can take either
of the two paths.
Reported-by: Jordan Niethe <jniethe5@gmail.com>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/33aa2e92645a92712be23b18035a2c6dcb92ff8d.1644834730.git.naveen.n.rao@linux.vnet.ibm.com
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