[PATCH v3 2/7] x86/resctrl: Remove few unnecessary rftype flags

From: Babu Moger
Date: Thu Mar 02 2023 - 15:24:48 EST


Remove few unnecessary rftype flags and simplify the code. This is done
to further cleanup the code eventually.

Signed-off-by: Babu Moger <babu.moger@xxxxxxx>
---
arch/x86/kernel/cpu/resctrl/internal.h | 9 +++------
arch/x86/kernel/cpu/resctrl/rdtgroup.c | 10 +++++++---
2 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/arch/x86/kernel/cpu/resctrl/internal.h b/arch/x86/kernel/cpu/resctrl/internal.h
index 8edecc5763d8..571145d75d29 100644
--- a/arch/x86/kernel/cpu/resctrl/internal.h
+++ b/arch/x86/kernel/cpu/resctrl/internal.h
@@ -243,12 +243,9 @@ struct rdtgroup {
*/
#define RFTYPE_INFO BIT(0)
#define RFTYPE_BASE BIT(1)
-#define RF_CTRLSHIFT 4
-#define RF_MONSHIFT 5
-#define RF_TOPSHIFT 6
-#define RFTYPE_CTRL BIT(RF_CTRLSHIFT)
-#define RFTYPE_MON BIT(RF_MONSHIFT)
-#define RFTYPE_TOP BIT(RF_TOPSHIFT)
+#define RFTYPE_CTRL BIT(4)
+#define RFTYPE_MON BIT(5)
+#define RFTYPE_TOP BIT(6)
#define RFTYPE_RES_CACHE BIT(8)
#define RFTYPE_RES_MB BIT(9)
#define RF_CTRL_INFO (RFTYPE_INFO | RFTYPE_CTRL)
diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
index 15ea5b550fe9..3c86506e54c1 100644
--- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
+++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
@@ -3163,7 +3163,7 @@ static int mkdir_rdt_prepare(struct kernfs_node *parent_kn,
{
struct rdtgroup *prdtgrp, *rdtgrp;
struct kernfs_node *kn;
- uint files = 0;
+ uint fflags = 0;
int ret;

prdtgrp = rdtgroup_kn_lock_live(parent_kn);
@@ -3215,8 +3215,12 @@ static int mkdir_rdt_prepare(struct kernfs_node *parent_kn,
goto out_destroy;
}

- files = RFTYPE_BASE | BIT(RF_CTRLSHIFT + rtype);
- ret = rdtgroup_add_files(kn, files);
+ if (rtype == RDTCTRL_GROUP)
+ fflags = RFTYPE_BASE | RFTYPE_CTRL;
+ else
+ fflags = RFTYPE_BASE | RFTYPE_MON;
+
+ ret = rdtgroup_add_files(kn, fflags);
if (ret) {
rdt_last_cmd_puts("kernfs fill error\n");
goto out_destroy;