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authorLinus Torvalds <torvalds@linux-foundation.org>2022-03-21 19:46:41 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-03-21 19:46:41 -0700
commitd0858cbdef50d973ca6b38c0ed0cce54cb2b6182 (patch)
treed734e883782256d82381d6e5bdcea5f1abe0ba86 /arch/x86/um
parentMerge tag 'hardening-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux (diff)
parentlib: stackinit: Convert to KUnit (diff)
downloadlinux-dev-d0858cbdef50d973ca6b38c0ed0cce54cb2b6182.tar.xz
linux-dev-d0858cbdef50d973ca6b38c0ed0cce54cb2b6182.zip
Merge tag 'overflow-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull overflow updates from Kees Cook: "These changes come in roughly two halves: support of Gustavo A. R. Silva's struct_size() work via additional helpers for catching overflow allocation size calculations, and conversions of selftests to KUnit (which includes some tweaks for UML + Clang): - Convert overflow selftest to KUnit - Convert stackinit selftest to KUnit - Implement size_t saturating arithmetic helpers - Allow struct_size() to be used in initializers" * tag 'overflow-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: lib: stackinit: Convert to KUnit um: Allow builds with Clang lib: overflow: Convert to Kunit overflow: Provide constant expression struct_size overflow: Implement size_t saturating arithmetic helpers test_overflow: Regularize test reporting output
Diffstat (limited to 'arch/x86/um')
-rw-r--r--arch/x86/um/user-offsets.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/arch/x86/um/user-offsets.c b/arch/x86/um/user-offsets.c
index bae61554abcc..e54a9814ccf1 100644
--- a/arch/x86/um/user-offsets.c
+++ b/arch/x86/um/user-offsets.c
@@ -8,12 +8,11 @@
#define __FRAME_OFFSETS
#include <linux/ptrace.h>
#include <asm/types.h>
+#include <linux/kbuild.h>
-#define DEFINE(sym, val) \
- asm volatile("\n->" #sym " %0 " #val : : "i" (val))
-
-#define DEFINE_LONGS(sym, val) \
- asm volatile("\n->" #sym " %0 " #val : : "i" (val/sizeof(unsigned long)))
+#define DEFINE_LONGS(sym, val) \
+ COMMENT(#val " / sizeof(unsigned long)"); \
+ DEFINE(sym, val / sizeof(unsigned long))
void foo(void)
{