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>
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@ -235,7 +235,7 @@ struct prctl_mm_map {
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#define PR_GET_TAGGED_ADDR_CTRL 56
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# define PR_TAGGED_ADDR_ENABLE (1UL << 0)
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/* MTE tag check fault modes */
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# define PR_MTE_TCF_NONE 0
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# define PR_MTE_TCF_NONE 0UL
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# define PR_MTE_TCF_SYNC (1UL << 1)
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# define PR_MTE_TCF_ASYNC (1UL << 2)
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# define PR_MTE_TCF_MASK (PR_MTE_TCF_SYNC | PR_MTE_TCF_ASYNC)
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@ -235,7 +235,7 @@ struct prctl_mm_map {
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#define PR_GET_TAGGED_ADDR_CTRL 56
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# define PR_TAGGED_ADDR_ENABLE (1UL << 0)
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/* MTE tag check fault modes */
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# define PR_MTE_TCF_NONE 0
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# define PR_MTE_TCF_NONE 0UL
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# define PR_MTE_TCF_SYNC (1UL << 1)
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# define PR_MTE_TCF_ASYNC (1UL << 2)
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# define PR_MTE_TCF_MASK (PR_MTE_TCF_SYNC | PR_MTE_TCF_ASYNC)
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