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cleanup: remove unuable code path
Eliminate some ancient unreachable code for historical version of libdm.
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@ -87,8 +87,6 @@ static int _version_checked = 0;
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static int _version_ok = 1;
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static unsigned _ioctl_buffer_double_factor = 0;
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const int _dm_compat = 0;
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/* *INDENT-OFF* */
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static const struct cmd_data _cmd_data_v4[] = {
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{"create", DM_DEV_CREATE, {4, 0, 0}},
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@ -597,23 +595,9 @@ int dm_check_version(void)
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_version_checked = 1;
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if (_check_version(dmversion, sizeof(dmversion), _dm_compat))
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if (_check_version(dmversion, sizeof(dmversion), 0))
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return 1;
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if (!_dm_compat)
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goto_bad;
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log_verbose("device-mapper ioctl protocol version %u failed. "
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"Trying protocol version 1.", _dm_version);
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_dm_version = 1;
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if (_check_version(dmversion, sizeof(dmversion), 0)) {
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log_verbose("Using device-mapper ioctl protocol version 1");
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return 1;
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}
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compat = "(compat)";
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bad:
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dm_get_library_version(libversion, sizeof(libversion));
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log_error("Incompatible libdevmapper %s%s and kernel driver %s.",
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@ -86,8 +86,6 @@ static int _version_checked = 0;
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static int _version_ok = 1;
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static unsigned _ioctl_buffer_double_factor = 0;
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const int _dm_compat = 0;
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/* *INDENT-OFF* */
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static const struct cmd_data _cmd_data_v4[] = {
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{"create", DM_DEV_CREATE, {4, 0, 0}},
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@ -590,23 +588,9 @@ int dm_check_version(void)
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_version_checked = 1;
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if (_check_version(dmversion, sizeof(dmversion), _dm_compat))
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if (_check_version(dmversion, sizeof(dmversion), 0))
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return 1;
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if (!_dm_compat)
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goto_bad;
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log_verbose("device-mapper ioctl protocol version %u failed. "
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"Trying protocol version 1.", _dm_version);
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_dm_version = 1;
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if (_check_version(dmversion, sizeof(dmversion), 0)) {
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log_verbose("Using device-mapper ioctl protocol version 1");
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return 1;
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}
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compat = "(compat)";
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bad:
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dm_get_library_version(libversion, sizeof(libversion));
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log_error("Incompatible libdevmapper %s%s and kernel driver %s.",
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