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authorPeter Collingbourne <pcc@google.com>2021-11-06 00:08:29 +0100
committerWill Deacon <will@kernel.org>2021-11-08 11:04:33 +0100
commitaedad3e1c6ddec234b63cfb57ac231da0f680e50 (patch)
tree38d025297fde0389189f8509d5fcc1a84231aad5 /tools
parentarm64: vdso: remove -nostdlib compiler flag (diff)
downloadlinux-aedad3e1c6ddec234b63cfb57ac231da0f680e50.tar.xz
linux-aedad3e1c6ddec234b63cfb57ac231da0f680e50.zip
arm64: mte: change PR_MTE_TCF_NONE back into an unsigned long
This constant was previously an unsigned long, but was changed into an int in commit 433c38f40f6a ("arm64: mte: change ASYNC and SYNC TCF settings into bitfields"). This ended up causing spurious unsigned-signed comparison warnings in expressions such as: (x & PR_MTE_TCF_MASK) != PR_MTE_TCF_NONE Therefore, change it back into an unsigned long to silence these warnings. Link: https://linux-review.googlesource.com/id/I07a72310db30227a5b7d789d0b817d78b657c639 Signed-off-by: Peter Collingbourne <pcc@google.com> Link: https://lore.kernel.org/r/20211105230829.2254790-1-pcc@google.com Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'tools')
-rw-r--r--tools/include/uapi/linux/prctl.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/include/uapi/linux/prctl.h b/tools/include/uapi/linux/prctl.h
index 43bd7f713c39..de45fcd2dcbe 100644
--- a/tools/include/uapi/linux/prctl.h
+++ b/tools/include/uapi/linux/prctl.h
@@ -235,7 +235,7 @@ struct prctl_mm_map {
#define PR_GET_TAGGED_ADDR_CTRL 56
# define PR_TAGGED_ADDR_ENABLE (1UL << 0)
/* MTE tag check fault modes */
-# define PR_MTE_TCF_NONE 0
+# define PR_MTE_TCF_NONE 0UL
# define PR_MTE_TCF_SYNC (1UL << 1)
# define PR_MTE_TCF_ASYNC (1UL << 2)
# define PR_MTE_TCF_MASK (PR_MTE_TCF_SYNC | PR_MTE_TCF_ASYNC)