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016fec9101
Now is_ioremap_addr() is only used in kernel/iomem.c and gonna be used in mm/ioremap.c. Move it into its own new header file linux/ioremap.h. Link: https://lkml.kernel.org/r/20230706154520.11257-17-bhe@redhat.com Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Baoquan He <bhe@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Alexander Gordeev <agordeev@linux.ibm.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Brian Cain <bcain@quicinc.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Chris Zankel <chris@zankel.net> Cc: David Laight <David.Laight@ACULAB.COM> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Cc: Jonas Bonn <jonas@southpole.se> Cc: Kefeng Wang <wangkefeng.wang@huawei.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Mike Rapoport (IBM) <rppt@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Niklas Schnelle <schnelle@linux.ibm.com> Cc: Rich Felker <dalias@libc.org> Cc: Stafford Horne <shorne@gmail.com> Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Vineet Gupta <vgupta@kernel.org> Cc: Will Deacon <will@kernel.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
30 lines
719 B
C
30 lines
719 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_IOREMAP_H
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#define _LINUX_IOREMAP_H
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#include <linux/kasan.h>
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#include <asm/pgtable.h>
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#if defined(CONFIG_HAS_IOMEM) || defined(CONFIG_GENERIC_IOREMAP)
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/*
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* Ioremap often, but not always uses the generic vmalloc area. E.g on
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* Power ARCH, it could have different ioremap space.
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*/
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#ifndef IOREMAP_START
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#define IOREMAP_START VMALLOC_START
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#define IOREMAP_END VMALLOC_END
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#endif
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static inline bool is_ioremap_addr(const void *x)
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{
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unsigned long addr = (unsigned long)kasan_reset_tag(x);
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return addr >= IOREMAP_START && addr < IOREMAP_END;
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}
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#else
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static inline bool is_ioremap_addr(const void *x)
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{
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return false;
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}
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#endif
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#endif /* _LINUX_IOREMAP_H */
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