Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm nouveau fix from Dave Airlie:
 "Still not back to work, but I decided to forward this fix"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/nouveau/gr/nv40: fix oops in interrupt handler

diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index 3a20db4..72d6182 100644 (file)
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -21,10 +21,13 @@
 
 #include <linux/device.h>
 #include <linux/dma-iommu.h>
+#include <linux/gfp.h>
 #include <linux/huge_mm.h>
 #include <linux/iommu.h>
 #include <linux/iova.h>
 #include <linux/mm.h>
+#include <linux/scatterlist.h>
+#include <linux/vmalloc.h>
 
 int iommu_dma_init(void)
 {
@@ -191,6 +194,7 @@ static struct page **__iommu_dma_alloc_pages(unsigned int count, gfp_t gfp)
 {
        struct page **pages;
        unsigned int i = 0, array_size = count * sizeof(*pages);
+       unsigned int order = MAX_ORDER;
 
        if (array_size <= PAGE_SIZE)
                pages = kzalloc(array_size, GFP_KERNEL);
@@ -204,14 +208,15 @@ static struct page **__iommu_dma_alloc_pages(unsigned int count, gfp_t gfp)
 
        while (count) {
                struct page *page = NULL;
-               int j, order = __fls(count);
+               int j;
 
                /*
                 * Higher-order allocations are a convenience rather
                 * than a necessity, hence using __GFP_NORETRY until
                 * falling back to single-page allocations.
                 */
-               for (order = min(order, MAX_ORDER); order > 0; order--) {
+               for (order = min_t(unsigned int, order, __fls(count));
+                    order > 0; order--) {
                        page = alloc_pages(gfp | __GFP_NORETRY, order);
                        if (!page)
                                continue;
@@ -453,7 +458,7 @@ int iommu_dma_map_sg(struct device *dev, struct scatterlist *sg,
                size_t s_offset = iova_offset(iovad, s->offset);
                size_t s_length = s->length;
 
-               sg_dma_address(s) = s->offset;
+               sg_dma_address(s) = s_offset;
                sg_dma_len(s) = s_length;
                s->offset -= s_offset;
                s_length = iova_align(iovad, s_length + s_offset);

diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index 8cf605f..dfb868e 100644 (file)
--- a/drivers/iommu/ipmmu-vmsa.c
+++ b/drivers/iommu/ipmmu-vmsa.c
@@ -295,7 +295,7 @@ static struct iommu_gather_ops ipmmu_gather_ops = {
 
 static int ipmmu_domain_init_context(struct ipmmu_vmsa_domain *domain)
 {
-       phys_addr_t ttbr;
+       u64 ttbr;
 
        /*
         * Allocate the page table operations.

diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index eae6548..60048c5 100644 (file)
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -586,6 +586,7 @@ extern int ftrace_arch_read_dyn_info(char *buf, int size);
 
 extern int skip_trace(unsigned long ip);
 extern void ftrace_module_init(struct module *mod);
+extern void ftrace_release_mod(struct module *mod);
 
 extern void ftrace_disable_daemon(void);
 extern void ftrace_enable_daemon(void);

diff --git a/kernel/module.c b/kernel/module.c
index 8f051a1..38c7bd5 100644 (file)
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -3571,6 +3571,12 @@ static int load_module(struct load_info *info, const char __user *uargs,
        synchronize_sched();
        mutex_unlock(&module_mutex);
  free_module:
+       /*
+        * Ftrace needs to clean up what it initialized.
+        * This does nothing if ftrace_module_init() wasn't called,
+        * but it must be called outside of module_mutex.
+        */
+       ftrace_release_mod(mod);
        /* Free lock-classes; relies on the preceding sync_rcu() */
        lockdep_free_key_range(mod->module_core, mod->core_size);