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-rw-r--r--drivers/net/myri10ge/myri10ge.c54
-rw-r--r--drivers/net/virtio_net.c10
-rw-r--r--drivers/net/wireless/libertas/if_sdio.c32
-rw-r--r--drivers/net/wireless/libertas/if_usb.c3
-rw-r--r--drivers/net/wireless/libertas_tf/if_usb.c3
5 files changed, 83 insertions, 19 deletions
diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index e0b47cc8a86e..5ae8a93fe4f5 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -239,6 +239,7 @@ struct myri10ge_priv {
int watchdog_resets;
int watchdog_pause;
int pause;
+ bool fw_name_allocated;
char *fw_name;
char eeprom_strings[MYRI10GE_EEPROM_STRINGS_SIZE];
char *product_code_string;
@@ -271,6 +272,7 @@ MODULE_FIRMWARE("myri10ge_eth_z8e.dat");
MODULE_FIRMWARE("myri10ge_rss_ethp_z8e.dat");
MODULE_FIRMWARE("myri10ge_rss_eth_z8e.dat");
+/* Careful: must be accessed under kparam_block_sysfs_write */
static char *myri10ge_fw_name = NULL;
module_param(myri10ge_fw_name, charp, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(myri10ge_fw_name, "Firmware image name");
@@ -376,6 +378,14 @@ static inline void put_be32(__be32 val, __be32 __iomem * p)
static struct net_device_stats *myri10ge_get_stats(struct net_device *dev);
+static void set_fw_name(struct myri10ge_priv *mgp, char *name, bool allocated)
+{
+ if (mgp->fw_name_allocated)
+ kfree(mgp->fw_name);
+ mgp->fw_name = name;
+ mgp->fw_name_allocated = allocated;
+}
+
static int
myri10ge_send_cmd(struct myri10ge_priv *mgp, u32 cmd,
struct myri10ge_cmd *data, int atomic)
@@ -747,7 +757,7 @@ static int myri10ge_load_firmware(struct myri10ge_priv *mgp, int adopt)
dev_warn(&mgp->pdev->dev, "via hotplug\n");
}
- mgp->fw_name = "adopted";
+ set_fw_name(mgp, "adopted", false);
mgp->tx_boundary = 2048;
myri10ge_dummy_rdma(mgp, 1);
status = myri10ge_get_firmware_capabilities(mgp);
@@ -3229,7 +3239,7 @@ static void myri10ge_firmware_probe(struct myri10ge_priv *mgp)
* load the optimized firmware (which assumes aligned PCIe
* completions) in order to see if it works on this host.
*/
- mgp->fw_name = myri10ge_fw_aligned;
+ set_fw_name(mgp, myri10ge_fw_aligned, false);
status = myri10ge_load_firmware(mgp, 1);
if (status != 0) {
goto abort;
@@ -3257,7 +3267,7 @@ static void myri10ge_firmware_probe(struct myri10ge_priv *mgp)
abort:
/* fall back to using the unaligned firmware */
mgp->tx_boundary = 2048;
- mgp->fw_name = myri10ge_fw_unaligned;
+ set_fw_name(mgp, myri10ge_fw_unaligned, false);
}
@@ -3280,7 +3290,7 @@ static void myri10ge_select_firmware(struct myri10ge_priv *mgp)
dev_info(&mgp->pdev->dev, "PCIE x%d Link\n",
link_width);
mgp->tx_boundary = 4096;
- mgp->fw_name = myri10ge_fw_aligned;
+ set_fw_name(mgp, myri10ge_fw_aligned, false);
} else {
myri10ge_firmware_probe(mgp);
}
@@ -3289,22 +3299,29 @@ static void myri10ge_select_firmware(struct myri10ge_priv *mgp)
dev_info(&mgp->pdev->dev,
"Assuming aligned completions (forced)\n");
mgp->tx_boundary = 4096;
- mgp->fw_name = myri10ge_fw_aligned;
+ set_fw_name(mgp, myri10ge_fw_aligned, false);
} else {
dev_info(&mgp->pdev->dev,
"Assuming unaligned completions (forced)\n");
mgp->tx_boundary = 2048;
- mgp->fw_name = myri10ge_fw_unaligned;
+ set_fw_name(mgp, myri10ge_fw_unaligned, false);
}
}
+
+ kparam_block_sysfs_write(myri10ge_fw_name);
if (myri10ge_fw_name != NULL) {
- overridden = 1;
- mgp->fw_name = myri10ge_fw_name;
+ char *fw_name = kstrdup(myri10ge_fw_name, GFP_KERNEL);
+ if (fw_name) {
+ overridden = 1;
+ set_fw_name(mgp, fw_name, true);
+ }
}
+ kparam_unblock_sysfs_write(myri10ge_fw_name);
+
if (mgp->board_number < MYRI10GE_MAX_BOARDS &&
myri10ge_fw_names[mgp->board_number] != NULL &&
strlen(myri10ge_fw_names[mgp->board_number])) {
- mgp->fw_name = myri10ge_fw_names[mgp->board_number];
+ set_fw_name(mgp, myri10ge_fw_names[mgp->board_number], false);
overridden = 1;
}
if (overridden)
@@ -3656,6 +3673,7 @@ static void myri10ge_probe_slices(struct myri10ge_priv *mgp)
struct myri10ge_cmd cmd;
struct pci_dev *pdev = mgp->pdev;
char *old_fw;
+ bool old_allocated;
int i, status, ncpus, msix_cap;
mgp->num_slices = 1;
@@ -3668,17 +3686,23 @@ static void myri10ge_probe_slices(struct myri10ge_priv *mgp)
/* try to load the slice aware rss firmware */
old_fw = mgp->fw_name;
+ old_allocated = mgp->fw_name_allocated;
+ /* don't free old_fw if we override it. */
+ mgp->fw_name_allocated = false;
+
if (myri10ge_fw_name != NULL) {
dev_info(&mgp->pdev->dev, "overriding rss firmware to %s\n",
myri10ge_fw_name);
- mgp->fw_name = myri10ge_fw_name;
+ set_fw_name(mgp, myri10ge_fw_name, false);
} else if (old_fw == myri10ge_fw_aligned)
- mgp->fw_name = myri10ge_fw_rss_aligned;
+ set_fw_name(mgp, myri10ge_fw_rss_aligned, false);
else
- mgp->fw_name = myri10ge_fw_rss_unaligned;
+ set_fw_name(mgp, myri10ge_fw_rss_unaligned, false);
status = myri10ge_load_firmware(mgp, 0);
if (status != 0) {
dev_info(&pdev->dev, "Rss firmware not found\n");
+ if (old_allocated)
+ kfree(old_fw);
return;
}
@@ -3743,6 +3767,8 @@ static void myri10ge_probe_slices(struct myri10ge_priv *mgp)
mgp->num_slices);
if (status == 0) {
pci_disable_msix(pdev);
+ if (old_allocated)
+ kfree(old_fw);
return;
}
if (status > 0)
@@ -3759,7 +3785,7 @@ disable_msix:
abort_with_fw:
mgp->num_slices = 1;
- mgp->fw_name = old_fw;
+ set_fw_name(mgp, old_fw, old_allocated);
myri10ge_load_firmware(mgp, 0);
}
@@ -3989,6 +4015,7 @@ abort_with_enabled:
pci_disable_device(pdev);
abort_with_netdev:
+ set_fw_name(mgp, NULL, false);
free_netdev(netdev);
return status;
}
@@ -4033,6 +4060,7 @@ static void myri10ge_remove(struct pci_dev *pdev)
dma_free_coherent(&pdev->dev, sizeof(*mgp->cmd),
mgp->cmd, mgp->cmd_bus);
+ set_fw_name(mgp, NULL, false);
free_netdev(netdev);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 78eb3190b9b1..16e04c64d253 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -23,6 +23,7 @@
#include <linux/module.h>
#include <linux/virtio.h>
#include <linux/virtio_net.h>
+#include <linux/virtio_ring.h>
#include <linux/scatterlist.h>
#include <linux/if_vlan.h>
#include <linux/slab.h>
@@ -340,7 +341,7 @@ static int add_recvbuf_small(struct virtnet_info *vi, gfp_t gfp)
skb_to_sgvec(skb, vi->rx_sg + 1, 0, skb->len);
- err = virtqueue_add_buf(vi->rvq, vi->rx_sg, 0, 2, skb);
+ err = virtqueue_add_buf_gfp(vi->rvq, vi->rx_sg, 0, 2, skb, gfp);
if (err < 0)
dev_kfree_skb(skb);
@@ -385,8 +386,8 @@ static int add_recvbuf_big(struct virtnet_info *vi, gfp_t gfp)
/* chain first in list head */
first->private = (unsigned long)list;
- err = virtqueue_add_buf(vi->rvq, vi->rx_sg, 0, MAX_SKB_FRAGS + 2,
- first);
+ err = virtqueue_add_buf_gfp(vi->rvq, vi->rx_sg, 0, MAX_SKB_FRAGS + 2,
+ first, gfp);
if (err < 0)
give_pages(vi, first);
@@ -404,7 +405,7 @@ static int add_recvbuf_mergeable(struct virtnet_info *vi, gfp_t gfp)
sg_init_one(vi->rx_sg, page_address(page), PAGE_SIZE);
- err = virtqueue_add_buf(vi->rvq, vi->rx_sg, 0, 1, page);
+ err = virtqueue_add_buf_gfp(vi->rvq, vi->rx_sg, 0, 1, page, gfp);
if (err < 0)
give_pages(vi, page);
@@ -1056,6 +1057,7 @@ static unsigned int features[] = {
VIRTIO_NET_F_GUEST_ECN, VIRTIO_NET_F_GUEST_UFO,
VIRTIO_NET_F_MRG_RXBUF, VIRTIO_NET_F_STATUS, VIRTIO_NET_F_CTRL_VQ,
VIRTIO_NET_F_CTRL_RX, VIRTIO_NET_F_CTRL_VLAN,
+ VIRTIO_RING_F_PUBLISH_USED,
};
static struct virtio_driver virtio_net_driver = {
diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c
index 64dd345d30f5..7a59574cbb04 100644
--- a/drivers/net/wireless/libertas/if_sdio.c
+++ b/drivers/net/wireless/libertas/if_sdio.c
@@ -125,6 +125,8 @@ struct if_sdio_card {
const char *helper;
const char *firmware;
+ bool helper_allocated;
+ bool firmware_allocated;
u8 buffer[65536];
@@ -984,16 +986,34 @@ static int if_sdio_probe(struct sdio_func *func,
card->helper = if_sdio_models[i].helper;
card->firmware = if_sdio_models[i].firmware;
+ kparam_block_sysfs_write(helper_name);
if (lbs_helper_name) {
+ char *helper = kstrdup(lbs_helper_name, GFP_KERNEL);
+ if (!helper) {
+ kparam_unblock_sysfs_write(helper_name);
+ ret = -ENOMEM;
+ goto free;
+ }
lbs_deb_sdio("overriding helper firmware: %s\n",
lbs_helper_name);
- card->helper = lbs_helper_name;
+ card->helper = helper;
+ card->helper_allocated = true;
}
+ kparam_unblock_sysfs_write(helper_name);
+ kparam_block_sysfs_write(fw_name);
if (lbs_fw_name) {
+ char *fw_name = kstrdup(lbs_fw_name, GFP_KERNEL);
+ if (!fw_name) {
+ kparam_unblock_sysfs_write(fw_name);
+ ret = -ENOMEM;
+ goto free;
+ }
lbs_deb_sdio("overriding firmware: %s\n", lbs_fw_name);
- card->firmware = lbs_fw_name;
+ card->firmware = fw_name;
+ card->firmware_allocated = true;
}
+ kparam_unblock_sysfs_write(fw_name);
sdio_claim_host(func);
@@ -1127,6 +1147,10 @@ free:
kfree(packet);
}
+ if (card->helper_allocated)
+ kfree(card->helper);
+ if (card->firmware_allocated)
+ kfree(card->firmware);
kfree(card);
goto out;
@@ -1177,6 +1201,10 @@ static void if_sdio_remove(struct sdio_func *func)
kfree(packet);
}
+ if (card->helper_allocated)
+ kfree(card->helper);
+ if (card->firmware_allocated)
+ kfree(card->firmware);
kfree(card);
lbs_deb_leave(LBS_DEB_SDIO);
diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c
index f41594c7ac16..0c247a422948 100644
--- a/drivers/net/wireless/libertas/if_usb.c
+++ b/drivers/net/wireless/libertas/if_usb.c
@@ -289,10 +289,13 @@ static int if_usb_probe(struct usb_interface *intf,
}
/* Upload firmware */
+ kparam_block_sysfs_write(fw_name);
if (__if_usb_prog_firmware(cardp, lbs_fw_name, BOOT_CMD_FW_BY_USB)) {
+ kparam_unblock_sysfs_write(fw_name);
lbs_deb_usbd(&udev->dev, "FW upload failed\n");
goto err_prog_firmware;
}
+ kparam_unblock_sysfs_write(fw_name);
if (!(priv = lbs_add_card(cardp, &udev->dev)))
goto err_prog_firmware;
diff --git a/drivers/net/wireless/libertas_tf/if_usb.c b/drivers/net/wireless/libertas_tf/if_usb.c
index c445500ffc61..803ad6e9ae53 100644
--- a/drivers/net/wireless/libertas_tf/if_usb.c
+++ b/drivers/net/wireless/libertas_tf/if_usb.c
@@ -812,12 +812,15 @@ static int if_usb_prog_firmware(struct if_usb_card *cardp)
lbtf_deb_enter(LBTF_DEB_USB);
+ kparam_block_sysfs_write(fw_name);
ret = request_firmware(&cardp->fw, lbtf_fw_name, &cardp->udev->dev);
if (ret < 0) {
pr_err("request_firmware() failed with %#x\n", ret);
pr_err("firmware %s not found\n", lbtf_fw_name);
+ kparam_unblock_sysfs_write(fw_name);
goto done;
}
+ kparam_unblock_sysfs_write(fw_name);
if (check_fwfile_format(cardp->fw->data, cardp->fw->size))
goto release_fw;
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-10 12:12:50 +0000