UPSTREAM: ARM: entry: get rid of multiple macro definitions
The following structure is just asking for trouble:
#ifdef CONFIG_symbol
.macro foo
...
.endm
.macro bar
...
.endm
.macro baz
...
.endm
#else
.macro foo
...
.endm
.macro bar
...
.endm
#ifdef CONFIG_symbol2
.macro baz
...
.endm
#else
.macro baz
...
.endm
#endif
#endif
such as one defintion being updated, but the other definitions miss out.
Where the contents of a macro needs to be conditional, the hint is in
the first clause of this very sentence. "contents" "conditional". Not
multiple separate definitions, especially not when much of the macro
is the same between different configs.
This patch fixes this bad style, which had caused the Thumb2 code to
miss-out on the uaccess updates.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Bug: 25672827
Patchset: PAN emulation
(cherry picked from commit aa06e5c1f9c2b466712be904cc5b56a813e24cfd)
Signed-off-by: Kees Cook <keescook@google.com>
Change-Id: Ie9d35de00dbae1451157259f7551af388cd37d3b
1 file changed
