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ARM: group is_permission_fault() with is_translation_fault()

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Group is_permission_fault() with is_translation_fault(), which is
needed to use is_permission_fault() in __do_kernel_fault(). As
this is static inline, there is no need for this to be under
CONFIG_MMU.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Russell King (Oracle) 2025-12-09 08:35:57 +00:00
parent edb924a721
commit dea20281ac
1 changed files with 13 additions and 13 deletions
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26
arch/arm/mm/fault.c
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@ -128,6 +128,19 @@ static inline bool is_translation_fault(unsigned int fsr)
return false;
}
static inline bool is_permission_fault(unsigned int fsr)
{
int fs = fsr_fs(fsr);
#ifdef CONFIG_ARM_LPAE
if ((fs & FS_MMU_NOLL_MASK) == FS_PERM_NOLL)
return true;
#else
if (fs == FS_L1_PERM || fs == FS_L2_PERM)
return true;
#endif
return false;
}
static void die_kernel_fault(const char *msg, struct mm_struct *mm,
unsigned long addr, unsigned int fsr,
struct pt_regs *regs)
@ -225,19 +238,6 @@ void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
}
#ifdef CONFIG_MMU
static inline bool is_permission_fault(unsigned int fsr)
{
int fs = fsr_fs(fsr);
#ifdef CONFIG_ARM_LPAE
if ((fs & FS_MMU_NOLL_MASK) == FS_PERM_NOLL)
return true;
#else
if (fs == FS_L1_PERM || fs == FS_L2_PERM)
return true;
#endif
return false;
}
#ifdef CONFIG_CPU_TTBR0_PAN
static inline bool ttbr0_usermode_access_allowed(struct pt_regs *regs)
{