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x86/kvm: Resolve shadow warnings in macro expansion

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Resolve shadow warnings that appear in W=2 builds. Instead of
using ret to hold the return pointer, save the length in a new
variable saved_len and compute the pointer on exit. This also
resolves a very technical error, in that ret was declared as
a const char *, when it really was a char * const.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Mark D Rustad 2014-07-30 14:19:26 -07:00 committed by Paolo Bonzini
parent 307d2740b1
commit 42cbc04fd3
1 changed files with 2 additions and 2 deletions
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4
arch/x86/kvm/mmutrace.h
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@ -22,7 +22,7 @@
__entry->unsync = sp->unsync;
#define KVM_MMU_PAGE_PRINTK() ({ \
const char *ret = p->buffer + p->len; \
const u32 saved_len = p->len; \
static const char *access_str[] = { \
"---", "--x", "w--", "w-x", "-u-", "-ux", "wu-", "wux" \
}; \
@ -41,7 +41,7 @@
role.nxe ? "" : "!", \
__entry->root_count, \
__entry->unsync ? "unsync" : "sync", 0); \
ret; \
p->buffer + saved_len; \
})
#define kvm_mmu_trace_pferr_flags \