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authorPasha Tatashin <pasha.tatashin@soleen.com>2025-11-14 13:59:55 -0500
committerAndrew Morton <akpm@linux-foundation.org>2025-11-27 14:24:35 -0800
commite268689a528288d5629ee017630186327403cc51 (patch)
tree035435acf13ab6529e4dc70fa3086b9ba3d4beaf
parent53f8f064eba344c074ef6755347bc4170538275f (diff)
kho: always expose output FDT in debugfs
Currently, the output FDT is added to debugfs only when KHO is finalized and removed when aborted. There is no need to hide the FDT based on the state. Always expose it starting from initialization. This aids the transition toward removing the explicit abort functionality and converting KHO to be fully stateless. Link: https://lkml.kernel.org/r/20251114190002.3311679-7-pasha.tatashin@soleen.com Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com> Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org> Reviewed-by: Pratyush Yadav <pratyush@kernel.org> Cc: Alexander Graf <graf@amazon.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Baoquan He <bhe@redhat.com> Cc: Coiby Xu <coxu@redhat.com> Cc: Dave Vasilevsky <dave@vasilevsky.ca> Cc: Eric Biggers <ebiggers@google.com> Cc: Kees Cook <kees@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-rw-r--r--kernel/liveupdate/kexec_handover.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/kernel/liveupdate/kexec_handover.c b/kernel/liveupdate/kexec_handover.c
index bed611bae1df..3e32c61a64b1 100644
--- a/kernel/liveupdate/kexec_handover.c
+++ b/kernel/liveupdate/kexec_handover.c
@@ -1234,8 +1234,6 @@ int kho_abort(void)
__kho_abort();
kho_out.finalized = false;
- kho_debugfs_fdt_remove(&kho_out.dbg, kho_out.fdt);
-
return 0;
}
@@ -1306,9 +1304,6 @@ int kho_finalize(void)
kho_out.finalized = true;
- WARN_ON_ONCE(kho_debugfs_fdt_add(&kho_out.dbg, "fdt",
- kho_out.fdt, true));
-
return 0;
}
@@ -1425,6 +1420,9 @@ static __init int kho_init(void)
init_cma_reserved_pageblock(pfn_to_page(pfn));
}
+ WARN_ON_ONCE(kho_debugfs_fdt_add(&kho_out.dbg, "fdt",
+ kho_out.fdt, true));
+
return 0;
err_free_fdt: