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[ Upstream commit18935a72eb] This patch fixes an error in the tail call limit test that caused the test to fail on for x86-64 JIT. Previously, the register R0 was used to report the total number of tail calls made. However, after a tail call fall-through, the value of the R0 register is undefined. Now, all tail call error path tests instead use context state to store the count. Fixes:874be05f52("bpf, tests: Add tail call test suite") Reported-by: Paul Chaignon <paul@cilium.io> Reported-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn> Link: https://lore.kernel.org/bpf/20210914091842.4186267-14-johan.almbladh@anyfinetworks.com Signed-off-by: Sasha Levin <sashal@kernel.org>
9280 lines
214 KiB
9280 lines
214 KiB