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authorBabu Moger <babu.moger@amd.com>2022-09-27 23:16:36 +0300
committerBorislav Petkov <bp@suse.de>2022-10-24 11:30:29 +0300
commit2d4daa549c17b6ba4845a751c7a78d3b2419d78f (patch)
treeab16843269cc982c7a92c8c3510a3858e5bc35d1 /arch/x86/kernel/cpu/resctrl/ctrlmondata.c
parent247f34f7b80357943234f93f247a1ae6b6c3a740 (diff)
downloadlinux-2d4daa549c17b6ba4845a751c7a78d3b2419d78f.tar.xz
x86/resctrl: Remove arch_has_empty_bitmaps
The field arch_has_empty_bitmaps is not required anymore. The field min_cbm_bits is enough to validate the CBM (capacity bit mask) if the architecture can support the zero CBM or not. Suggested-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: Babu Moger <babu.moger@amd.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> Reviewed-by: Fenghua Yu <fenghua.yu@intel.com> Link: https://lore.kernel.org/r/166430979654.372014.615622285687642644.stgit@bmoger-ubuntu
Diffstat (limited to 'arch/x86/kernel/cpu/resctrl/ctrlmondata.c')
-rw-r--r--arch/x86/kernel/cpu/resctrl/ctrlmondata.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
index 1dafbdc5ac31..1df0e3262bca 100644
--- a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
+++ b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
@@ -105,8 +105,7 @@ static bool cbm_validate(char *buf, u32 *data, struct rdt_resource *r)
return false;
}
- if ((!r->cache.arch_has_empty_bitmaps && val == 0) ||
- val > r->default_ctrl) {
+ if ((r->cache.min_cbm_bits > 0 && val == 0) || val > r->default_ctrl) {
rdt_last_cmd_puts("Mask out of range\n");
return false;
}