diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2021-01-20 12:16:11 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-01-20 12:16:11 -0800 |
| commit | 0fe2f273ab892bbba3f8d85e3f237bc0802e5709 (patch) | |
| tree | c0194aaa4d716cd49909176885bf498dd6de8cd4 /arch/riscv/kernel/cacheinfo.c | |
| parent | 7b8fc0103bb51d1d3e1fb5fd67958612e709f883 (diff) | |
| parent | 75439bc439e0f02903b48efce84876ca92da97bd (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicts:
drivers/net/can/dev.c
commit 03f16c5075b2 ("can: dev: can_restart: fix use after free bug")
commit 3e77f70e7345 ("can: dev: move driver related infrastructure into separate subdir")
Code move.
drivers/net/dsa/b53/b53_common.c
commit 8e4052c32d6b ("net: dsa: b53: fix an off by one in checking "vlan->vid"")
commit b7a9e0da2d1c ("net: switchdev: remove vid_begin -> vid_end range from VLAN objects")
Field rename.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'arch/riscv/kernel/cacheinfo.c')
| -rw-r--r-- | arch/riscv/kernel/cacheinfo.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/riscv/kernel/cacheinfo.c b/arch/riscv/kernel/cacheinfo.c index de59dd457b41..d86781357044 100644 --- a/arch/riscv/kernel/cacheinfo.c +++ b/arch/riscv/kernel/cacheinfo.c @@ -26,7 +26,16 @@ cache_get_priv_group(struct cacheinfo *this_leaf) static struct cacheinfo *get_cacheinfo(u32 level, enum cache_type type) { - struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(smp_processor_id()); + /* + * Using raw_smp_processor_id() elides a preemptability check, but this + * is really indicative of a larger problem: the cacheinfo UABI assumes + * that cores have a homonogenous view of the cache hierarchy. That + * happens to be the case for the current set of RISC-V systems, but + * likely won't be true in general. Since there's no way to provide + * correct information for these systems via the current UABI we're + * just eliding the check for now. + */ + struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(raw_smp_processor_id()); struct cacheinfo *this_leaf; int index; |