Re: [PATCH v5 14/17] elf: Introduce elf64_phdr_size() helper

Add a common helper to compute the total size of an ELF64 header
(Ehdr + program headers) from the number of program headers.
Replace open-coded calculations in powerpc, x86, vmcore,
and crash_core.

On ppc64, struct elfhdr maps to elf64_hdr, so the powerpc change
is a pure cleanup.

No functional change intended.

Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: "Christophe Leroy (CS GROUP)" <chleroy@kernel.org>
Cc: Thomas Gleixner <tglx@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Baoquan He <baoquan.he@linux.dev>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Pratyush Yadav <pratyush@kernel.org>
Cc: Dave Young <ruirui.yang@linux.dev>
Cc: Kees Cook <kees@kernel.org>
Cc: Sourabh Jain <redacted>
Signed-off-by: Jinjie Ruan <redacted>

Sashiko has reviewed this patch and found no issues. It looks great!

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20260918100442.3841135-1-ruanjinjie@huawei.com?part=14