1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_IOREMAP_H 2 #ifndef _LINUX_IOREMAP_H
3 #define _LINUX_IOREMAP_H 3 #define _LINUX_IOREMAP_H
4 4
5 #include <linux/kasan.h> 5 #include <linux/kasan.h>
6 #include <asm/pgtable.h> 6 #include <asm/pgtable.h>
7 #include <asm/vmalloc.h> <<
8 7
9 #if defined(CONFIG_HAS_IOMEM) || defined(CONFI 8 #if defined(CONFIG_HAS_IOMEM) || defined(CONFIG_GENERIC_IOREMAP)
10 /* 9 /*
11 * Ioremap often, but not always uses the gene 10 * Ioremap often, but not always uses the generic vmalloc area. E.g on
12 * Power ARCH, it could have different ioremap 11 * Power ARCH, it could have different ioremap space.
13 */ 12 */
14 #ifndef IOREMAP_START 13 #ifndef IOREMAP_START
15 #define IOREMAP_START VMALLOC_START 14 #define IOREMAP_START VMALLOC_START
16 #define IOREMAP_END VMALLOC_END 15 #define IOREMAP_END VMALLOC_END
17 #endif 16 #endif
18 static inline bool is_ioremap_addr(const void 17 static inline bool is_ioremap_addr(const void *x)
19 { 18 {
20 unsigned long addr = (unsigned long)ka 19 unsigned long addr = (unsigned long)kasan_reset_tag(x);
21 20
22 return addr >= IOREMAP_START && addr < 21 return addr >= IOREMAP_START && addr < IOREMAP_END;
23 } 22 }
24 #else 23 #else
25 static inline bool is_ioremap_addr(const void 24 static inline bool is_ioremap_addr(const void *x)
26 { 25 {
27 return false; 26 return false;
28 } 27 }
29 #endif 28 #endif
30 29
31 #endif /* _LINUX_IOREMAP_H */ 30 #endif /* _LINUX_IOREMAP_H */
32 31
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