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pstore/platform: Use backend name for console registration

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If the pstore backend changes, there's no indication in the logs what
the console is (it always says "pstore"). Instead, pass through the
active backend's name. (Also adjust the selftest to match.)

Link: https://lore.kernel.org/lkml/20200510202436.63222-5-keescook@chromium.org/
Link: https://lore.kernel.org/lkml/20200526135429.GQ12456@shao2-debian
Signed-off-by: Kees Cook <keescook@chromium.org>
This commit is contained in:
Kees Cook 2020-05-08 09:26:28 -07:00
parent 563ca40ddf
commit d195c39052
2 changed files with 4 additions and 2 deletions
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4
fs/pstore/platform.c
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@ -514,13 +514,15 @@ static void pstore_console_write(struct console *con, const char *s, unsigned c)
}
static struct console pstore_console = {
.name = "pstore",
.write = pstore_console_write,
.index = -1,
};
static void pstore_register_console(void)
{
/* Show which backend is going to get console writes. */
strscpy(pstore_console.name, psinfo->name,
sizeof(pstore_console.name));
/*
* Always initialize flags here since prior unregister_console()
* calls may have changed settings (specifically CON_ENABLED).

2
tools/testing/selftests/pstore/pstore_tests
View File

@ -10,7 +10,7 @@
. ./common_tests
prlog -n "Checking pstore console is registered ... "
dmesg | grep -q "console \[pstore"
dmesg | grep -Eq "console \[(pstore|${backend})"
show_result $?
prlog -n "Checking /dev/pmsg0 exists ... "