From: Qiuxu Zhuo <qiuxu.zhuo@xxxxxxxxx> [ Upstream commit 85b9c8bfee67ed151c44861c71adc816fc1b46a9 ] The debugfs node is /sys/kernel/debug/skx_edac_test. Rename it and move under EDAC debugfs root directory. Remove the unused 'skx_fake_addr' and remove the 'skx_test' on error. Co-developed-by: Tony Luck <tony.luck@xxxxxxxxx> Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@xxxxxxxxx> Signed-off-by: Borislav Petkov <bp@xxxxxxx> CC: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> CC: arozansk@xxxxxxxxxx CC: linux-edac <linux-edac@xxxxxxxxxxxxxxx> Link: http://lkml.kernel.org/r/1542353684-13496-1-git-send-email-qiuxu.zhuo@xxxxxxxxx Stable-dep-of: 71b1e3ba3fed ("EDAC/skx: Fix overflows on the DRAM row address mapping arrays") Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/edac/skx_edac.c | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) diff --git a/drivers/edac/skx_edac.c b/drivers/edac/skx_edac.c index dd209e0dd9abb..b97803580d70f 100644 --- a/drivers/edac/skx_edac.c +++ b/drivers/edac/skx_edac.c @@ -896,12 +896,11 @@ static bool skx_decode(struct decoded_addr *res) #ifdef CONFIG_EDAC_DEBUG /* - * Debug feature. Make /sys/kernel/debug/skx_edac_test/addr. - * Write an address to this file to exercise the address decode - * logic in this driver. + * Debug feature. + * Exercise the address decode logic by writing an address to + * /sys/kernel/debug/edac/skx_test/addr. */ static struct dentry *skx_test; -static u64 skx_fake_addr; static int debugfs_u64_set(void *data, u64 val) { @@ -912,19 +911,19 @@ static int debugfs_u64_set(void *data, u64 val) return 0; } - DEFINE_SIMPLE_ATTRIBUTE(fops_u64_wo, NULL, debugfs_u64_set, "%llu\n"); -static struct dentry *mydebugfs_create(const char *name, umode_t mode, - struct dentry *parent, u64 *value) -{ - return debugfs_create_file(name, mode, parent, value, &fops_u64_wo); -} - static void setup_skx_debug(void) { - skx_test = debugfs_create_dir("skx_edac_test", NULL); - mydebugfs_create("addr", S_IWUSR, skx_test, &skx_fake_addr); + skx_test = edac_debugfs_create_dir("skx_test"); + if (!skx_test) + return; + + if (!edac_debugfs_create_file("addr", 0200, skx_test, + NULL, &fops_u64_wo)) { + debugfs_remove(skx_test); + skx_test = NULL; + } } static void teardown_skx_debug(void) -- 2.39.2
