sh: mm: re-add lost __ref to ioremap_prot() to fix modpost warning

When __ioremap_caller() was replaced by ioremap_prot(), the __ref
annotation added in commit af1415314a4190b8 ("sh: Flag __ioremap_caller()
__init_refok.") was removed, causing a modpost warning:

    WARNING: modpost: vmlinux: section mismatch in reference: ioremap_prot+0x88 (section: .text) -> ioremap_fixed (section: .init.text)

ioremap_prot() calls ioremap_fixed() (which is marked __init), but only
before mem_init_done becomes true, so this is safe.  Hence fix this by
re-adding the lost __ref.

Link: https://lkml.kernel.org/r/20230911093850.1517389-1-geert+renesas@glider.be
Fixes: 0453c9a78015cb22 ("sh: mm: convert to GENERIC_IOREMAP")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Baoquan He <bhe@redhat.com>
Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Rich Felker <dalias@libc.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/arch/sh/mm/ioremap.c b/arch/sh/mm/ioremap.c
index c33b3da..33d20f3 100644 (file)
--- a/arch/sh/mm/ioremap.c
+++ b/arch/sh/mm/ioremap.c
@@ -72,8 +72,8 @@ __ioremap_29bit(phys_addr_t offset, unsigned long size, pgprot_t prot)
 #define __ioremap_29bit(offset, size, prot)            NULL
 #endif /* CONFIG_29BIT */
 
-void __iomem *ioremap_prot(phys_addr_t phys_addr, size_t size,
-                          unsigned long prot)
+void __iomem __ref *ioremap_prot(phys_addr_t phys_addr, size_t size,
+                                unsigned long prot)
 {
        void __iomem *mapped;
        pgprot_t pgprot = __pgprot(prot);