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Subject[PATCH][V2] x86/xen: clean up clang build warning
Date
From: Colin Ian King <colin.king@canonical.com>

In the case where sizeof(maddr) != sizeof(long) p is initialized and
never read and clang throws a warning on this. Move declaration of
p to clean up the clang build warning:

warning: Value stored to 'p' during its initialization is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
arch/x86/include/asm/xen/hypercall.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/xen/hypercall.h b/arch/x86/include/asm/xen/hypercall.h
index 9606688caa4b..5ff77cb2529e 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -552,13 +552,13 @@ static inline void
MULTI_update_descriptor(struct multicall_entry *mcl, u64 maddr,
struct desc_struct desc)
{
- u32 *p = (u32 *) &desc;
-
mcl->op = __HYPERVISOR_update_descriptor;
if (sizeof(maddr) == sizeof(long)) {
mcl->args[0] = maddr;
mcl->args[1] = *(unsigned long *)&desc;
} else {
+ u32 *p = (u32 *)&desc;
+
mcl->args[0] = maddr;
mcl->args[1] = maddr >> 32;
mcl->args[2] = *p++;
--
2.14.1
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