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qga/vss-win32: fix clang warning with C++20

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C++20 deprecated such constructs.

../qga/vss-win32/requester.cpp:380:32: error: bitwise operation between different enumeration types ('_VSS_SNAPSHOT_CONTEXT' and '_VSS_VOLUME_SNAPSHOT_ATTRIBUTES') is deprecated [-Werror,-Wdeprecated-enum-enum-conversion]
  380 |     ctx = VSS_CTX_APP_ROLLBACK | VSS_VOLSNAP_ATTR_TRANSPORTABLE |

This is a false positive, since VSS_CTX_APP_ROLLBACK is not a value
defined in _VSS_VOLUME_SNAPSHOT_ATTRIBUTES enum.

Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Link: https://lore.kernel.org/qemu-devel/20260124182921.531562-10-pierrick.bouvier@linaro.org
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
This commit is contained in:
Pierrick Bouvier
2025-12-30 13:32:16 -08:00
parent f3b3bfbe3f
commit 79762f55ef
1 changed files with 4 additions and 2 deletions
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6
qga/vss-win32/requester.cpp
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@@ -377,8 +377,10 @@ void requester_freeze(int *num_vols, void *mountpoints, ErrorSet *errset)
* To prevent the final commit (which requires to write to snapshots),
* ATTR_NO_AUTORECOVERY and ATTR_TRANSPORTABLE are specified here.
*/
ctx = VSS_CTX_APP_ROLLBACK | VSS_VOLSNAP_ATTR_TRANSPORTABLE |
VSS_VOLSNAP_ATTR_NO_AUTORECOVERY | VSS_VOLSNAP_ATTR_TXF_RECOVERY;
ctx = VSS_CTX_APP_ROLLBACK;
ctx |= VSS_VOLSNAP_ATTR_TRANSPORTABLE |
VSS_VOLSNAP_ATTR_NO_AUTORECOVERY |
VSS_VOLSNAP_ATTR_TXF_RECOVERY;
hr = vss_ctx.pVssbc->SetContext(ctx);
if (hr == (HRESULT)VSS_E_UNSUPPORTED_CONTEXT) {
/* Non-server version of Windows doesn't support ATTR_TRANSPORTABLE */