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network: update comment and log message
After 4b30f2e135
, reading stable_secret
sysctl property fails with -ENOMEM, instead of -EIO.
This is due to read_full_virtual_file() uses read() as the backend while
read_one_line_file() uses fgetc(). And each functions return different
error on fails.
Anyway, the failure is harmless here. So, the log message and comment is
updated.
Closes one of the issues in #19410.
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parent
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commit
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@ -1327,8 +1327,9 @@ static int link_configure_addrgen_mode(Link *link) {
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r = sysctl_read_ip_property(AF_INET6, link->ifname, "stable_secret", NULL);
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if (r < 0) {
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/* The file may not exist. And even if it exists, when stable_secret is unset,
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* reading the file fails with EIO. */
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log_link_debug_errno(link, r, "Failed to read sysctl property stable_secret: %m");
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* reading the file fails with ENOMEM when read_full_virtual_file(), which uses
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* read() as the backend, and EIO when read_one_line_file() which uses fgetc(). */
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log_link_debug_errno(link, r, "Failed to read sysctl property stable_secret, ignoring: %m");
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ipv6ll_mode = IN6_ADDR_GEN_MODE_EUI64;
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} else
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