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Diffstat (limited to 'drivers/edac/skx_common.c')
-rw-r--r--drivers/edac/skx_common.c57
1 files changed, 10 insertions, 47 deletions
diff --git a/drivers/edac/skx_common.c b/drivers/edac/skx_common.c
index 0e96e7b5b0a7..b0dddcfa9baa 100644
--- a/drivers/edac/skx_common.c
+++ b/drivers/edac/skx_common.c
@@ -1,7 +1,15 @@
// SPDX-License-Identifier: GPL-2.0
/*
- * Common codes for both the skx_edac driver and Intel 10nm server EDAC driver.
- * Originally split out from the skx_edac driver.
+ *
+ * Shared code by both skx_edac and i10nm_edac. Originally split out
+ * from the skx_edac driver.
+ *
+ * This file is linked into both skx_edac and i10nm_edac drivers. In
+ * order to avoid link errors, this file must be like a pure library
+ * without including symbols and defines which would otherwise conflict,
+ * when linked once into a module and into a built-in object, at the
+ * same time. For example, __this_module symbol references when that
+ * file is being linked into a built-in object.
*
* Copyright (c) 2018, Intel Corporation.
*/
@@ -644,48 +652,3 @@ void skx_remove(void)
kfree(d);
}
}
-
-#ifdef CONFIG_EDAC_DEBUG
-/*
- * Debug feature.
- * Exercise the address decode logic by writing an address to
- * /sys/kernel/debug/edac/dirname/addr.
- */
-static struct dentry *skx_test;
-
-static int debugfs_u64_set(void *data, u64 val)
-{
- struct mce m;
-
- pr_warn_once("Fake error to 0x%llx injected via debugfs\n", val);
-
- memset(&m, 0, sizeof(m));
- /* ADDRV + MemRd + Unknown channel */
- m.status = MCI_STATUS_ADDRV + 0x90;
- /* One corrected error */
- m.status |= BIT_ULL(MCI_STATUS_CEC_SHIFT);
- m.addr = val;
- skx_mce_check_error(NULL, 0, &m);
-
- return 0;
-}
-DEFINE_SIMPLE_ATTRIBUTE(fops_u64_wo, NULL, debugfs_u64_set, "%llu\n");
-
-void setup_skx_debug(const char *dirname)
-{
- skx_test = edac_debugfs_create_dir(dirname);
- if (!skx_test)
- return;
-
- if (!edac_debugfs_create_file("addr", 0200, skx_test,
- NULL, &fops_u64_wo)) {
- debugfs_remove(skx_test);
- skx_test = NULL;
- }
-}
-
-void teardown_skx_debug(void)
-{
- debugfs_remove_recursive(skx_test);
-}
-#endif /*CONFIG_EDAC_DEBUG*/