Messages in this thread Patch in this message | | | From | Andy Shevchenko <> | Subject | [PATCH v1 1/1] x86/of: Remove unused early_init_dt_add_memory_arch() | Date | Thu, 24 Nov 2022 20:48:24 +0200 |
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Recently the objtool starts complaining on the dead code in the object files, in particular
vmlinux.o: warning: objtool: early_init_dt_scan_memory+0x191: unreachable instruction
when CONFIG_OF=y.
Indeed, the entire early_init_dt_scan() is not used on x86 and making it compile (with help of CONFIG_OF) will abrupt the code flow since in the middle of it we have a BUG() instruction.
Remove the entire culprit function to make objtool happy.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- arch/x86/kernel/devicetree.c | 5 ----- 1 file changed, 5 deletions(-)
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c index 5cd51f25f446..59438d2b204c 100644 --- a/arch/x86/kernel/devicetree.c +++ b/arch/x86/kernel/devicetree.c @@ -31,11 +31,6 @@ char __initdata cmd_line[COMMAND_LINE_SIZE]; int __initdata of_ioapic; -void __init early_init_dt_add_memory_arch(u64 base, u64 size) -{ - BUG(); -} - void __init add_dtb(u64 data) { initial_dtb = data + offsetof(struct setup_data, data); -- 2.35.1
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