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KVM: selftests: Fix printf() format goof in SEV smoke test

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Print out the index of mismatching XSAVE bytes using unsigned decimal
format.  Some versions of clang complain about trying to print an integer
as an unsigned char.

  x86/sev_smoke_test.c:55:51: error: format specifies type 'unsigned char'
                                     but the argument has type 'int' [-Werror,-Wformat]

Fixes: 8c53183dba ("selftests: kvm: add test for transferring FPU state into VMSA")
Link: https://lore.kernel.org/r/20250228233852.3855676-1-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Sean Christopherson 2025-02-28 15:38:52 -08:00
parent d88ed5fb7c
commit 3b2d3db368
1 changed files with 2 additions and 1 deletions
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3
tools/testing/selftests/kvm/x86/sev_smoke_test.c
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@ -52,7 +52,8 @@ static void compare_xsave(u8 *from_host, u8 *from_guest)
bool bad = false;
for (i = 0; i < 4095; i++) {
if (from_host[i] != from_guest[i]) {
printf("mismatch at %02hhx | %02hhx %02hhx\n", i, from_host[i], from_guest[i]);
printf("mismatch at %u | %02hhx %02hhx\n",
i, from_host[i], from_guest[i]);
bad = true;
}
}