On 18/03/24 9:43 pm, Yonghong Song wrote:
On 3/17/24 11:52 PM, Hari Bathini wrote:
Just checking on whether this will go via bpf or mm tree?
Sending to bpf-next should be okay.
Could you resubmit the patch as CONFIG_CRASH_DUMP probably not
available to bpf-next when you initially submitted the patch.
OK. Sent V2 with tags added and changelog updated:
https://lore.kernel.org/all/20240319080152.36987-1-hbath...@linux.ibm.com/
On 09/02/24 6:05 pm, Hari Bathini wrote:
With [1], CONFIG_KEXEC & !CONFIG_CRASH_DUMP is supported but that led
to the below warning:
"WARN: resolve_btfids: unresolved symbol crash_kexec"
Fix it by using the appropriate #ifdef.
[1] https://lore.kernel.org/all/20240124051254.67105-1-...@redhat.com/
Signed-off-by: Hari Bathini <hbath...@linux.ibm.com>
---
kernel/bpf/helpers.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index 4db1c658254c..e408d1115e26 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -2545,7 +2545,7 @@ __bpf_kfunc void bpf_throw(u64 cookie)
__bpf_kfunc_end_defs();
BTF_KFUNCS_START(generic_btf_ids)
-#ifdef CONFIG_KEXEC_CORE
+#ifdef CONFIG_CRASH_DUMP
BTF_ID_FLAGS(func, crash_kexec, KF_DESTRUCTIVE)
#endif
BTF_ID_FLAGS(func, bpf_obj_new_impl, KF_ACQUIRE | KF_RET_NULL)
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