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| author | Nathan Chancellor <nathan@kernel.org> | 2026-06-04 17:33:21 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-06-06 15:08:36 -0700 |
| commit | 979c294509f9248fe1e7c358d582fb37dd5ca12d (patch) | |
| tree | 65c1326bd86a5021eb936392cf606791547f4988 /include/linux | |
| parent | 6086121dc424b6906602617449f0445aeab00277 (diff) | |
| download | lwn-979c294509f9248fe1e7c358d582fb37dd5ca12d.tar.gz lwn-979c294509f9248fe1e7c358d582fb37dd5ca12d.zip | |
cfi: Include uaccess.h for get_kernel_nofault()
After commit 0652a3daa787 ("tracing: Fix CFI violation in probestub
being called by tprobes"), there are many build errors when building
ARCH=arm multi_v7_defconfig + CONFIG_CFI=y like:
In file included from drivers/base/devres.c:17:
In file included from drivers/base/trace.h:16:
In file included from include/linux/tracepoint.h:23:
include/linux/cfi.h:44:6: error: call to undeclared function 'get_kernel_nofault'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
44 | if (get_kernel_nofault(hash, func - cfi_get_offset()))
| ^
1 error generated.
get_kernel_nofault() is called in the generic version of
cfi_get_func_hash() but nothing ensures uaccess.h is always included for
a proper expansion and prototype. Include uaccess.h in cfi.h to clear
up the errors.
Cc: stable@vger.kernel.org
Fixes: 0652a3daa787 ("tracing: Fix CFI violation in probestub being called by tprobes")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/cfi.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/cfi.h b/include/linux/cfi.h index 1fd22ea6eba4..0f220d29225c 100644 --- a/include/linux/cfi.h +++ b/include/linux/cfi.h @@ -9,6 +9,7 @@ #include <linux/bug.h> #include <linux/module.h> +#include <linux/uaccess.h> #include <asm/cfi.h> #ifdef CONFIG_CFI |