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authorDavid S. Miller <davem@davemloft.net>2018-01-09 16:37:00 +0100
committerDavid S. Miller <davem@davemloft.net>2018-01-09 16:37:00 +0100
commita0ce093180f2bbb832b3f5583adc640ad67ea568 (patch)
tree62c9aca5be3566ea4810e4584a02870de8b953f8 /lib
parentnet: tipc: remove unused hardirq.h (diff)
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net (diff)
downloadlinux-a0ce093180f2bbb832b3f5583adc640ad67ea568.tar.xz
linux-a0ce093180f2bbb832b3f5583adc640ad67ea568.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'lib')
-rw-r--r--lib/kobject_uevent.c16
-rw-r--r--lib/mpi/longlong.h18
-rw-r--r--lib/timerqueue.c8
3 files changed, 34 insertions, 8 deletions
diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
index c3e84edc47c9..2615074d3de5 100644
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -346,7 +346,8 @@ static int kobject_uevent_net_broadcast(struct kobject *kobj,
static void zap_modalias_env(struct kobj_uevent_env *env)
{
static const char modalias_prefix[] = "MODALIAS=";
- int i;
+ size_t len;
+ int i, j;
for (i = 0; i < env->envp_idx;) {
if (strncmp(env->envp[i], modalias_prefix,
@@ -355,11 +356,18 @@ static void zap_modalias_env(struct kobj_uevent_env *env)
continue;
}
- if (i != env->envp_idx - 1)
- memmove(&env->envp[i], &env->envp[i + 1],
- sizeof(env->envp[i]) * env->envp_idx - 1);
+ len = strlen(env->envp[i]) + 1;
+
+ if (i != env->envp_idx - 1) {
+ memmove(env->envp[i], env->envp[i + 1],
+ env->buflen - len);
+
+ for (j = i; j < env->envp_idx - 1; j++)
+ env->envp[j] = env->envp[j + 1] - len;
+ }
env->envp_idx--;
+ env->buflen -= len;
}
}
diff --git a/lib/mpi/longlong.h b/lib/mpi/longlong.h
index 57fd45ab7af1..08c60d10747f 100644
--- a/lib/mpi/longlong.h
+++ b/lib/mpi/longlong.h
@@ -671,7 +671,23 @@ do { \
************** MIPS/64 **************
***************************************/
#if (defined(__mips) && __mips >= 3) && W_TYPE_SIZE == 64
-#if (__GNUC__ >= 5) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 4)
+#if defined(__mips_isa_rev) && __mips_isa_rev >= 6
+/*
+ * GCC ends up emitting a __multi3 intrinsic call for MIPS64r6 with the plain C
+ * code below, so we special case MIPS64r6 until the compiler can do better.
+ */
+#define umul_ppmm(w1, w0, u, v) \
+do { \
+ __asm__ ("dmulu %0,%1,%2" \
+ : "=d" ((UDItype)(w0)) \
+ : "d" ((UDItype)(u)), \
+ "d" ((UDItype)(v))); \
+ __asm__ ("dmuhu %0,%1,%2" \
+ : "=d" ((UDItype)(w1)) \
+ : "d" ((UDItype)(u)), \
+ "d" ((UDItype)(v))); \
+} while (0)
+#elif (__GNUC__ >= 5) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 4)
#define umul_ppmm(w1, w0, u, v) \
do { \
typedef unsigned int __ll_UTItype __attribute__((mode(TI))); \
diff --git a/lib/timerqueue.c b/lib/timerqueue.c
index 4a720ed4fdaf..0d54bcbc8170 100644
--- a/lib/timerqueue.c
+++ b/lib/timerqueue.c
@@ -33,8 +33,9 @@
* @head: head of timerqueue
* @node: timer node to be added
*
- * Adds the timer node to the timerqueue, sorted by the
- * node's expires value.
+ * Adds the timer node to the timerqueue, sorted by the node's expires
+ * value. Returns true if the newly added timer is the first expiring timer in
+ * the queue.
*/
bool timerqueue_add(struct timerqueue_head *head, struct timerqueue_node *node)
{
@@ -70,7 +71,8 @@ EXPORT_SYMBOL_GPL(timerqueue_add);
* @head: head of timerqueue
* @node: timer node to be removed
*
- * Removes the timer node from the timerqueue.
+ * Removes the timer node from the timerqueue. Returns true if the queue is
+ * not empty after the remove.
*/
bool timerqueue_del(struct timerqueue_head *head, struct timerqueue_node *node)
{