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kp->addr is a pointer, so it cannot be cast directly to a 'u64'
when it gets interpreted as an integer value:
kernel/trace/bpf_trace.c: In function '____bpf_get_func_ip_kprobe':
kernel/trace/bpf_trace.c:968:21: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
968 | return kp ? (u64) kp->addr : 0;
Use the uintptr_t type instead.
Fixes: 9ffd9f3ff719 ("bpf: Add bpf_get_func_ip helper for kprobe programs")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210721212007.3876595-1-arnd@kernel.org