Commit d538aadc authored by Christophe Leroy's avatar Christophe Leroy Committed by Michael Ellerman
Browse files

powerpc/ioremap: warn on early use of ioremap() 



Powerpc now has EARLY_IOREMAP.

Next step is to convert all early users of ioremap() to
early_ioremap().

Add a warning to help locate those users.

Signed-off-by: default avatarChristophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/b4f03a68ee8e68773c8973d74ec35f9c82c72871.1568295907.git.christophe.leroy@c-s.fr
parent 265c3491

arch/powerpc/mm/ioremap_32.c

+1 −0
Original line number Diff line number Diff line
@@ -68,6 +68,7 @@ __ioremap_caller(phys_addr_t addr, unsigned long size, pgprot_t prot, void *call 
	/*

	 * Should check if it is a candidate for a BAT mapping

	 */

	pr_warn("ioremap() called early from %pS. Use early_ioremap() instead\n", caller);



	err = early_ioremap_range(ioremap_bot - size, p, size, prot);

	if (err)

arch/powerpc/mm/ioremap_64.c

+2 −0
Original line number Diff line number Diff line
@@ -81,6 +81,8 @@ void __iomem *__ioremap_caller(phys_addr_t addr, unsigned long size, 
	if (slab_is_available())

		return do_ioremap(paligned, offset, size, prot, caller);



	pr_warn("ioremap() called early from %pS. Use early_ioremap() instead\n", caller);



	err = early_ioremap_range(ioremap_bot, paligned, size, prot);

	if (err)

		return NULL;

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