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powerpc/kuap: Force inlining of all first level KUAP helpers.

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All KUAP helpers defined in asm/kup.h are single line functions
that should be inlined. But on book3s/32 build, we get many
instances of <prevent_write_to_user.constprop.0>.

Force inlining of those helpers.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/8479a862e165a57a855292d47e24c259a578f5a0.1622711627.git.christophe.leroy@csgroup.eu
This commit is contained in:
Christophe Leroy 2021-06-03 09:13:54 +00:00 committed by Michael Ellerman
parent cb2f1fb205
commit 240efd717c
1 changed files with 11 additions and 11 deletions
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22
arch/powerpc/include/asm/kup.h
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@ -84,51 +84,51 @@ static __always_inline void setup_kup(void)
setup_kuap(disable_kuap);
}
static inline void allow_read_from_user(const void __user *from, unsigned long size)
static __always_inline void allow_read_from_user(const void __user *from, unsigned long size)
{
barrier_nospec();
allow_user_access(NULL, from, size, KUAP_READ);
}
static inline void allow_write_to_user(void __user *to, unsigned long size)
static __always_inline void allow_write_to_user(void __user *to, unsigned long size)
{
allow_user_access(to, NULL, size, KUAP_WRITE);
}
static inline void allow_read_write_user(void __user *to, const void __user *from,
unsigned long size)
static __always_inline void allow_read_write_user(void __user *to, const void __user *from,
unsigned long size)
{
barrier_nospec();
allow_user_access(to, from, size, KUAP_READ_WRITE);
}
static inline void prevent_read_from_user(const void __user *from, unsigned long size)
static __always_inline void prevent_read_from_user(const void __user *from, unsigned long size)
{
prevent_user_access(KUAP_READ);
}
static inline void prevent_write_to_user(void __user *to, unsigned long size)
static __always_inline void prevent_write_to_user(void __user *to, unsigned long size)
{
prevent_user_access(KUAP_WRITE);
}
static inline void prevent_read_write_user(void __user *to, const void __user *from,
unsigned long size)
static __always_inline void prevent_read_write_user(void __user *to, const void __user *from,
unsigned long size)
{
prevent_user_access(KUAP_READ_WRITE);
}
static inline void prevent_current_access_user(void)
static __always_inline void prevent_current_access_user(void)
{
prevent_user_access(KUAP_READ_WRITE);
}
static inline void prevent_current_read_from_user(void)
static __always_inline void prevent_current_read_from_user(void)
{
prevent_user_access(KUAP_READ);
}
static inline void prevent_current_write_to_user(void)
static __always_inline void prevent_current_write_to_user(void)
{
prevent_user_access(KUAP_WRITE);
}