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authorjunhua huang <huang.junhua@zte.com.cn>2022-12-28 09:54:12 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-11-01 01:56:07 +0100
commit354b3847ead1bc41a66df8f4baa9fd12688e1a4e (patch)
treeefc11d6b26779f887bbc640bc04600464e87aa00
parent2c3766fac98c62d9b366e366497d1055a25f0f6d (diff)
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arm64/uprobes: change the uprobe_opcode_t typedef to fix the sparse warning
commit ef08c0fadd8a17ebe429b85e23952dac3263ad34 upstream. After we fixed the uprobe inst endian in aarch_be, the sparse check report the following warning info: sparse warnings: (new ones prefixed by >>) >> kernel/events/uprobes.c:223:25: sparse: sparse: restricted __le32 degrades to integer >> kernel/events/uprobes.c:574:56: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected unsigned int [addressable] [usertype] opcode @@ got restricted __le32 [usertype] @@ kernel/events/uprobes.c:574:56: sparse: expected unsigned int [addressable] [usertype] opcode kernel/events/uprobes.c:574:56: sparse: got restricted __le32 [usertype] >> kernel/events/uprobes.c:1483:32: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned int [usertype] insn @@ got restricted __le32 [usertype] @@ kernel/events/uprobes.c:1483:32: sparse: expected unsigned int [usertype] insn kernel/events/uprobes.c:1483:32: sparse: got restricted __le32 [usertype] use the __le32 to u32 for uprobe_opcode_t, to keep the same. Fixes: 60f07e22a73d ("arm64:uprobe fix the uprobe SWBP_INSN in big-endian") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: junhua huang <huang.junhua@zte.com.cn> Link: https://lore.kernel.org/r/202212280954121197626@zte.com.cn Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--arch/arm64/include/asm/uprobes.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/uprobes.h b/arch/arm64/include/asm/uprobes.h
index 98f29a43bfe8..014b02897f8e 100644
--- a/arch/arm64/include/asm/uprobes.h
+++ b/arch/arm64/include/asm/uprobes.h
@@ -14,7 +14,7 @@
#define UPROBE_SWBP_INSN_SIZE AARCH64_INSN_SIZE
#define UPROBE_XOL_SLOT_BYTES AARCH64_INSN_SIZE
-typedef u32 uprobe_opcode_t;
+typedef __le32 uprobe_opcode_t;
struct arch_uprobe_task {
};