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initramfs: fix clang build failure

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There is only one function in init/initramfs.c that is in the .text
section, and it is marked __weak.  When building with clang-12 and the
integrated assembler, this leads to a bug with recordmcount:

  ./scripts/recordmcount  "init/initramfs.o"
  Cannot find symbol for section 2: .text.
  init/initramfs.o: failed

I'm not quite sure what exactly goes wrong, but I notice that this
function is only ever called from an __init function, and normally
inlined.  Marking it __init as well is clearly correct and it leads to
recordmcount no longer complaining.

Link: https://lkml.kernel.org/r/20201204165742.3815221-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Barret Rhoden <brho@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Arnd Bergmann 2020-12-11 13:36:42 -08:00 committed by Linus Torvalds
parent 14dc3983b5
commit 55d5b7dd64
1 changed files with 1 additions and 1 deletions
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init/initramfs.c
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@ -535,7 +535,7 @@ extern unsigned long __initramfs_size;
#include <linux/initrd.h> #include <linux/initrd.h>
#include <linux/kexec.h> #include <linux/kexec.h>
void __weak free_initrd_mem(unsigned long start, unsigned long end) void __weak __init free_initrd_mem(unsigned long start, unsigned long end)
{ {
#ifdef CONFIG_ARCH_KEEP_MEMBLOCK #ifdef CONFIG_ARCH_KEEP_MEMBLOCK
unsigned long aligned_start = ALIGN_DOWN(start, PAGE_SIZE); unsigned long aligned_start = ALIGN_DOWN(start, PAGE_SIZE);