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powerpc/e500: Simplify pte_mkexec()

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Commit b6cb20fdc2 ("powerpc/book3e: Fix set_memory_x() and
set_memory_nx()") implemented a more elaborated version of
pte_mkwrite() suitable for both kernel and user pages. That was
needed because set_memory_x() was using pte_mkwrite(). But since
commit a4c182ecf3 ("powerpc/set_memory: Avoid spinlock recursion
in change_page_attr()") pte_mkwrite() is not used anymore by
set_memory_x() so pte_mkwrite() can be simplified as it is only
used for user pages.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/cdc822322fe2ff4b0f5ecfde71d09d950b1c7557.1695659959.git.christophe.leroy@csgroup.eu
This commit is contained in:
Christophe Leroy
2023-09-25 20:31:34 +02:00
committed by Michael Ellerman
parent 799d8836a7
commit 4c8dd6c987
1 changed files with 1 additions and 4 deletions
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5
arch/powerpc/include/asm/nohash/pte-e500.h
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@@ -115,10 +115,7 @@ static inline pte_t pte_mkuser(pte_t pte)
static inline pte_t pte_mkexec(pte_t pte)
{
if (pte_val(pte) & _PAGE_BAP_UR)
return __pte((pte_val(pte) & ~_PAGE_BAP_SX) | _PAGE_BAP_UX);
else
return __pte((pte_val(pte) & ~_PAGE_BAP_UX) | _PAGE_BAP_SX);
return __pte((pte_val(pte) & ~_PAGE_BAP_SX) | _PAGE_BAP_UX);
}
#define pte_mkexec pte_mkexec