From: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Subject: initramfs: fix populate_initrd_image() section mismatch
With gcc-4.6.3:
WARNING: vmlinux.o(.text.unlikely+0x140): Section mismatch in reference from the function populate_initrd_image() to the variable .init.ramfs.info:__initramfs_size
The function populate_initrd_image() references
the variable __init __initramfs_size.
This is often because populate_initrd_image lacks a __init
annotation or the annotation of __initramfs_size is wrong.
WARNING: vmlinux.o(.text.unlikely+0x14c): Section mismatch in reference from the function populate_initrd_image() to the function .init.text:unpack_to_rootfs()
The function populate_initrd_image() references
the function __init unpack_to_rootfs().
This is often because populate_initrd_image lacks a __init
annotation or the annotation of unpack_to_rootfs is wrong.
WARNING: vmlinux.o(.text.unlikely+0x198): Section mismatch in reference from the function populate_initrd_image() to the function .init.text:xwrite()
The function populate_initrd_image() references
the function __init xwrite().
This is often because populate_initrd_image lacks a __init
annotation or the annotation of xwrite is wrong.
Indeed, if the compiler decides not to inline populate_initrd_image(), a
warning is generated.
Fix this by adding the missing __init annotations.
Link: http://lkml.kernel.org/r/20190617074340.12779-1-geert@xxxxxxxxxxxxxx
Fixes: 7c184ecd262fe64f ("initramfs: factor out a helper to populate the initrd image")
Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
init/initramfs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/init/initramfs.c~initramfs-fix-populate_initrd_image-section-mismatch
+++ a/init/initramfs.c
@@ -617,7 +617,7 @@ static inline void clean_rootfs(void)
#endif /* CONFIG_BLK_DEV_RAM */
#ifdef CONFIG_BLK_DEV_RAM
-static void populate_initrd_image(char *err)
+static void __init populate_initrd_image(char *err)
{
ssize_t written;
int fd;
@@ -637,7 +637,7 @@ static void populate_initrd_image(char *
ksys_close(fd);
}
#else
-static void populate_initrd_image(char *err)
+static void __init populate_initrd_image(char *err)
{
printk(KERN_EMERG "Initramfs unpacking failed: %s\n", err);
}
_
