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authorLinus Torvalds <torvalds@linux-foundation.org>2019-10-12 23:11:21 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2019-10-12 23:11:21 +0200
commit680b5b3c5d34b22695357e17b6bdd0abd83e6b1c (patch)
tree50d9629f39d8a1c8ad0fb3e80c8d4bf8e6512841 /drivers/xen
parentMerge tag 's390-5.4-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/... (diff)
parentxen: Stop abusing DT of_dma_configure API (diff)
downloadlinux-680b5b3c5d34b22695357e17b6bdd0abd83e6b1c.tar.xz
linux-680b5b3c5d34b22695357e17b6bdd0abd83e6b1c.zip
Merge tag 'for-linus-5.4-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross: - correct panic handling when running as a Xen guest - cleanup the Xen grant driver to remove printing a pointer being always NULL - remove a soon to be wrong call of of_dma_configure() * tag 'for-linus-5.4-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: Stop abusing DT of_dma_configure API xen/grant-table: remove unnecessary printing x86/xen: Return from panic notifier
Diffstat (limited to 'drivers/xen')
-rw-r--r--drivers/xen/gntdev.c13
-rw-r--r--drivers/xen/grant-table.c3
2 files changed, 3 insertions, 13 deletions
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index a446a7221e13..81401f386c9c 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -22,6 +22,7 @@
#define pr_fmt(fmt) "xen:" KBUILD_MODNAME ": " fmt
+#include <linux/dma-mapping.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
@@ -34,9 +35,6 @@
#include <linux/slab.h>
#include <linux/highmem.h>
#include <linux/refcount.h>
-#ifdef CONFIG_XEN_GRANT_DMA_ALLOC
-#include <linux/of_device.h>
-#endif
#include <xen/xen.h>
#include <xen/grant_table.h>
@@ -625,14 +623,7 @@ static int gntdev_open(struct inode *inode, struct file *flip)
flip->private_data = priv;
#ifdef CONFIG_XEN_GRANT_DMA_ALLOC
priv->dma_dev = gntdev_miscdev.this_device;
-
- /*
- * The device is not spawn from a device tree, so arch_setup_dma_ops
- * is not called, thus leaving the device with dummy DMA ops.
- * Fix this by calling of_dma_configure() with a NULL node to set
- * default DMA ops.
- */
- of_dma_configure(priv->dma_dev, NULL, true);
+ dma_coerce_mask_and_coherent(priv->dma_dev, DMA_BIT_MASK(64));
#endif
pr_debug("priv %p\n", priv);
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index 7ea6fb6a2e5d..49b381e104ef 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -1363,8 +1363,7 @@ static int gnttab_setup(void)
if (xen_feature(XENFEAT_auto_translated_physmap) && gnttab_shared.addr == NULL) {
gnttab_shared.addr = xen_auto_xlat_grant_frames.vaddr;
if (gnttab_shared.addr == NULL) {
- pr_warn("gnttab share frames (addr=0x%08lx) is not mapped!\n",
- (unsigned long)xen_auto_xlat_grant_frames.vaddr);
+ pr_warn("gnttab share frames is not mapped!\n");
return -ENOMEM;
}
}