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tpm: avoid clang shifting negative signed warning

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clang 3.7.0 on x86_64 warns about the following:

  hw/tpm/tpm_tis.c:1000:36: warning: shifting a negative signed value is undefined [-Wshift-negative-value]
            tis->loc[c].iface_id = TPM_TIS_IFACE_ID_SUPPORTED_FLAGS1_3;
                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  hw/tpm/tpm_tis.c:144:10: note: expanded from macro 'TPM_TIS_IFACE_ID_SUPPORTED_FLAGS1_3'
     (~0 << 4)/* all of it is don't care */)
      ~~ ^

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2015-11-10 15:57:34 +00:00
parent a12e52a151
commit 886ce6f8b6
1 changed files with 1 additions and 1 deletions
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2
hw/tpm/tpm_tis.c
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@ -141,7 +141,7 @@
#define TPM_TIS_IFACE_ID_SUPPORTED_FLAGS1_3 \
(TPM_TIS_IFACE_ID_INTERFACE_TIS1_3 | \
(~0 << 4)/* all of it is don't care */)
(~0u << 4)/* all of it is don't care */)
/* if backend was a TPM 2.0: */
#define TPM_TIS_IFACE_ID_SUPPORTED_FLAGS2_0 \