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authorJakub Kicinski <kuba@kernel.org>2022-08-25 16:07:42 -0700
committerJakub Kicinski <kuba@kernel.org>2022-08-25 16:07:42 -0700
commit880b0dd94f0399cf772a8582e7b5a47f180c8618 (patch)
treef85d11673c4ed5c6d28863f5241260483d52433f /lib
parentb9030780971b56c0c455c3b66244efd96608846d (diff)
parent4c612826bec1441214816827979b62f84a097e91 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/ethernet/mellanox/mlx5/core/en_fs.c 21234e3a84c7 ("net/mlx5e: Fix use after free in mlx5e_fs_init()") c7eafc5ed068 ("net/mlx5e: Convert ethtool_steering member of flow_steering struct to pointer") https://lore.kernel.org/all/20220825104410.67d4709c@canb.auug.org.au/ https://lore.kernel.org/all/20220823055533.334471-1-saeed@kernel.org/ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/Makefile3
-rw-r--r--lib/cpumask.c2
-rw-r--r--lib/ratelimit.c12
3 files changed, 11 insertions, 6 deletions
diff --git a/lib/Makefile b/lib/Makefile
index c95212141928..5927d7fa0806 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -34,9 +34,10 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \
is_single_threaded.o plist.o decompress.o kobject_uevent.o \
earlycpio.o seq_buf.o siphash.o dec_and_lock.o \
nmi_backtrace.o win_minmax.o memcat_p.o \
- buildid.o cpumask.o
+ buildid.o
lib-$(CONFIG_PRINTK) += dump_stack.o
+lib-$(CONFIG_SMP) += cpumask.o
lib-y += kobject.o klist.o
obj-y += lockref.o
diff --git a/lib/cpumask.c b/lib/cpumask.c
index 8baeb37e23d3..f0ae119be8c4 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -109,7 +109,6 @@ void __init free_bootmem_cpumask_var(cpumask_var_t mask)
}
#endif
-#if NR_CPUS > 1
/**
* cpumask_local_spread - select the i'th cpu with local numa cpu's first
* @i: index number
@@ -197,4 +196,3 @@ unsigned int cpumask_any_distribute(const struct cpumask *srcp)
return next;
}
EXPORT_SYMBOL(cpumask_any_distribute);
-#endif /* NR_CPUS */
diff --git a/lib/ratelimit.c b/lib/ratelimit.c
index e01a93f46f83..ce945c17980b 100644
--- a/lib/ratelimit.c
+++ b/lib/ratelimit.c
@@ -26,10 +26,16 @@
*/
int ___ratelimit(struct ratelimit_state *rs, const char *func)
{
+ /* Paired with WRITE_ONCE() in .proc_handler().
+ * Changing two values seperately could be inconsistent
+ * and some message could be lost. (See: net_ratelimit_state).
+ */
+ int interval = READ_ONCE(rs->interval);
+ int burst = READ_ONCE(rs->burst);
unsigned long flags;
int ret;
- if (!rs->interval)
+ if (!interval)
return 1;
/*
@@ -44,7 +50,7 @@ int ___ratelimit(struct ratelimit_state *rs, const char *func)
if (!rs->begin)
rs->begin = jiffies;
- if (time_is_before_jiffies(rs->begin + rs->interval)) {
+ if (time_is_before_jiffies(rs->begin + interval)) {
if (rs->missed) {
if (!(rs->flags & RATELIMIT_MSG_ON_RELEASE)) {
printk_deferred(KERN_WARNING
@@ -56,7 +62,7 @@ int ___ratelimit(struct ratelimit_state *rs, const char *func)
rs->begin = jiffies;
rs->printed = 0;
}
- if (rs->burst && rs->burst > rs->printed) {
+ if (burst && burst > rs->printed) {
rs->printed++;
ret = 1;
} else {