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authorDan Williams <dan.j.williams@intel.com>2020-10-19 21:08:03 -0700
committerBorislav Petkov <bp@suse.de>2020-10-26 18:08:35 +0100
commit3adb776384f2042ef6bda876e91a7a7ac2872c5e (patch)
tree2f0a3e417f1fbe1309ebbd487afdbf4af70375c8 /tools/testing/nvdimm
parent8d71d2bf6efec3032208958c483a247f529ffb16 (diff)
x86, libnvdimm/test: Remove COPY_MC_TEST
The COPY_MC_TEST facility has served its purpose for validating the early termination conditions of the copy_mc_fragile() implementation. Remove it and the EXPORT_SYMBOL_GPL of copy_mc_fragile(). Reported-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/160316688322.3374697.8648308115165836243.stgit@dwillia2-desk3.amr.corp.intel.com
Diffstat (limited to 'tools/testing/nvdimm')
-rw-r--r--tools/testing/nvdimm/test/nfit.c103
1 files changed, 0 insertions, 103 deletions
diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c
index 2ac0fff6dad8..9b185bf82da8 100644
--- a/tools/testing/nvdimm/test/nfit.c
+++ b/tools/testing/nvdimm/test/nfit.c
@@ -23,7 +23,6 @@
#include "nfit_test.h"
#include "../watermark.h"
-#include <asm/copy_mc_test.h>
#include <asm/mce.h>
/*
@@ -3284,107 +3283,6 @@ static struct platform_driver nfit_test_driver = {
.id_table = nfit_test_id,
};
-static char copy_mc_buf[PAGE_SIZE] __attribute__((__aligned__(PAGE_SIZE)));
-
-enum INJECT {
- INJECT_NONE,
- INJECT_SRC,
- INJECT_DST,
-};
-
-static void copy_mc_test_init(char *dst, char *src, size_t size)
-{
- size_t i;
-
- memset(dst, 0xff, size);
- for (i = 0; i < size; i++)
- src[i] = (char) i;
-}
-
-static bool copy_mc_test_validate(unsigned char *dst, unsigned char *src,
- size_t size, unsigned long rem)
-{
- size_t i;
-
- for (i = 0; i < size - rem; i++)
- if (dst[i] != (unsigned char) i) {
- pr_info_once("%s:%d: offset: %zd got: %#x expect: %#x\n",
- __func__, __LINE__, i, dst[i],
- (unsigned char) i);
- return false;
- }
- for (i = size - rem; i < size; i++)
- if (dst[i] != 0xffU) {
- pr_info_once("%s:%d: offset: %zd got: %#x expect: 0xff\n",
- __func__, __LINE__, i, dst[i]);
- return false;
- }
- return true;
-}
-
-void copy_mc_test(void)
-{
- char *inject_desc[] = { "none", "source", "destination" };
- enum INJECT inj;
-
- if (IS_ENABLED(CONFIG_COPY_MC_TEST)) {
- pr_info("%s: run...\n", __func__);
- } else {
- pr_info("%s: disabled, skip.\n", __func__);
- return;
- }
-
- for (inj = INJECT_NONE; inj <= INJECT_DST; inj++) {
- int i;
-
- pr_info("%s: inject: %s\n", __func__, inject_desc[inj]);
- for (i = 0; i < 512; i++) {
- unsigned long expect, rem;
- void *src, *dst;
- bool valid;
-
- switch (inj) {
- case INJECT_NONE:
- copy_mc_inject_src(NULL);
- copy_mc_inject_dst(NULL);
- dst = &copy_mc_buf[2048];
- src = &copy_mc_buf[1024 - i];
- expect = 0;
- break;
- case INJECT_SRC:
- copy_mc_inject_src(&copy_mc_buf[1024]);
- copy_mc_inject_dst(NULL);
- dst = &copy_mc_buf[2048];
- src = &copy_mc_buf[1024 - i];
- expect = 512 - i;
- break;
- case INJECT_DST:
- copy_mc_inject_src(NULL);
- copy_mc_inject_dst(&copy_mc_buf[2048]);
- dst = &copy_mc_buf[2048 - i];
- src = &copy_mc_buf[1024];
- expect = 512 - i;
- break;
- }
-
- copy_mc_test_init(dst, src, 512);
- rem = copy_mc_fragile(dst, src, 512);
- valid = copy_mc_test_validate(dst, src, 512, expect);
- if (rem == expect && valid)
- continue;
- pr_info("%s: copy(%#lx, %#lx, %d) off: %d rem: %ld %s expect: %ld\n",
- __func__,
- ((unsigned long) dst) & ~PAGE_MASK,
- ((unsigned long ) src) & ~PAGE_MASK,
- 512, i, rem, valid ? "valid" : "bad",
- expect);
- }
- }
-
- copy_mc_inject_src(NULL);
- copy_mc_inject_dst(NULL);
-}
-
static __init int nfit_test_init(void)
{
int rc, i;
@@ -3393,7 +3291,6 @@ static __init int nfit_test_init(void)
libnvdimm_test();
acpi_nfit_test();
device_dax_test();
- copy_mc_test();
dax_pmem_test();
dax_pmem_core_test();
#ifdef CONFIG_DEV_DAX_PMEM_COMPAT