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-rw-r--r--Documentation/virt/uml/user_mode_linux_howto_v2.rst20
-rw-r--r--MAINTAINERS5
-rw-r--r--arch/um/Makefile4
-rw-r--r--arch/um/drivers/mconsole_kern.c3
-rw-r--r--arch/um/drivers/port_user.c18
-rw-r--r--arch/um/drivers/ubd_kern.c8
-rw-r--r--arch/um/drivers/vector_kern.c105
-rw-r--r--arch/um/drivers/vector_kern.h3
-rw-r--r--arch/um/drivers/vector_user.c2
-rw-r--r--arch/um/drivers/vector_user.h2
-rw-r--r--arch/um/include/asm/xor.h4
-rw-r--r--arch/um/include/shared/os.h1
-rw-r--r--arch/um/kernel/dtb.c2
-rw-r--r--arch/um/os-Linux/file.c9
-rw-r--r--arch/um/os-Linux/helper.c5
-rw-r--r--arch/um/os-Linux/time.c6
-rw-r--r--arch/x86/um/shared/sysdep/syscalls_64.h5
-rw-r--r--arch/x86/um/syscalls_64.c1
-rw-r--r--lib/logic_iomem.c8
19 files changed, 131 insertions, 80 deletions
diff --git a/Documentation/virt/uml/user_mode_linux_howto_v2.rst b/Documentation/virt/uml/user_mode_linux_howto_v2.rst
index d5ad96c795f6..863f67b72c05 100644
--- a/Documentation/virt/uml/user_mode_linux_howto_v2.rst
+++ b/Documentation/virt/uml/user_mode_linux_howto_v2.rst
@@ -1193,6 +1193,26 @@ E.g. ``os_close_file()`` is just a wrapper around ``close()``
which ensures that the userspace function close does not clash
with similarly named function(s) in the kernel part.
+Using UML as a Test Platform
+============================
+
+UML is an excellent test platform for device driver development. As
+with most things UML, "some user assembly may be required". It is
+up to the user to build their emulation environment. UML at present
+provides only the kernel infrastructure.
+
+Part of this infrastructure is the ability to load and parse fdt
+device tree blobs as used in Arm or Open Firmware platforms. These
+are supplied as an optional extra argument to the kernel command
+line::
+
+ dtb=filename
+
+The device tree is loaded and parsed at boottime and is accessible by
+drivers which query it. At this moment in time this facility is
+intended solely for development purposes. UML's own devices do not
+query the device tree.
+
Security Considerations
-----------------------
diff --git a/MAINTAINERS b/MAINTAINERS
index cf896438366b..cbbd3ce7e0c2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -20539,14 +20539,15 @@ F: Documentation/admin-guide/media/zr364xx*
F: drivers/media/usb/zr364xx/
USER-MODE LINUX (UML)
-M: Jeff Dike <jdike@addtoit.com>
M: Richard Weinberger <richard@nod.at>
M: Anton Ivanov <anton.ivanov@cambridgegreys.com>
+M: Johannes Berg <johannes@sipsolutions.net>
L: linux-um@lists.infradead.org
S: Maintained
W: http://user-mode-linux.sourceforge.net
Q: https://patchwork.ozlabs.org/project/linux-um/list/
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux.git next
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux.git fixes
F: Documentation/virt/uml/
F: arch/um/
F: arch/x86/um/
diff --git a/arch/um/Makefile b/arch/um/Makefile
index f2fe63bfd819..320b09cd513c 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -75,6 +75,10 @@ USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -I%,,$(KBUILD_CFLAGS))) \
-D_FILE_OFFSET_BITS=64 -idirafter $(srctree)/include \
-idirafter $(objtree)/include -D__KERNEL__ -D__UM_HOST__
+ifdef CONFIG_CC_IS_CLANG
+USER_CFLAGS := $(patsubst -mno-global-merge,,$(USER_CFLAGS))
+endif
+
#This will adjust *FLAGS accordingly to the platform.
include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS)
diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index 6ead1e240457..8ca67a692683 100644
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -224,7 +224,7 @@ void mconsole_go(struct mc_request *req)
void mconsole_stop(struct mc_request *req)
{
- deactivate_fd(req->originating_fd, MCONSOLE_IRQ);
+ block_signals();
os_set_fd_block(req->originating_fd, 1);
mconsole_reply(req, "stopped", 0, 0);
for (;;) {
@@ -247,6 +247,7 @@ void mconsole_stop(struct mc_request *req)
}
os_set_fd_block(req->originating_fd, 0);
mconsole_reply(req, "", 0, 0);
+ unblock_signals();
}
static DEFINE_SPINLOCK(mc_devices_lock);
diff --git a/arch/um/drivers/port_user.c b/arch/um/drivers/port_user.c
index 5b5b64cb1071..3c62ae81df62 100644
--- a/arch/um/drivers/port_user.c
+++ b/arch/um/drivers/port_user.c
@@ -5,6 +5,7 @@
#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
#include <errno.h>
#include <termios.h>
#include <unistd.h>
@@ -167,14 +168,29 @@ static void port_pre_exec(void *arg)
int port_connection(int fd, int *socket, int *pid_out)
{
int new, err;
- char *argv[] = { "/usr/sbin/in.telnetd", "-L",
+ char *env;
+ char *argv[] = { "in.telnetd", "-L",
OS_LIB_PATH "/uml/port-helper", NULL };
struct port_pre_exec_data data;
+ if ((env = getenv("UML_PORT_HELPER")))
+ argv[2] = env;
+
new = accept(fd, NULL, 0);
if (new < 0)
return -errno;
+ err = os_access(argv[2], X_OK);
+ if (err < 0) {
+ printk(UM_KERN_ERR "port_connection : error accessing port-helper "
+ "executable at %s: %s\n", argv[2], strerror(-err));
+ if (env == NULL)
+ printk(UM_KERN_ERR "Set UML_PORT_HELPER environment "
+ "variable to path to uml-utilities port-helper "
+ "binary\n");
+ goto out_close;
+ }
+
err = os_pipe(socket, 0, 0);
if (err < 0)
goto out_close;
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 69d2d0049a61..b03269faef71 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -1526,13 +1526,19 @@ static void do_io(struct io_thread_req *req, struct io_desc *desc)
}
break;
case REQ_OP_DISCARD:
- case REQ_OP_WRITE_ZEROES:
n = os_falloc_punch(req->fds[bit], off, len);
if (n) {
req->error = map_error(-n);
return;
}
break;
+ case REQ_OP_WRITE_ZEROES:
+ n = os_falloc_zeroes(req->fds[bit], off, len);
+ if (n) {
+ req->error = map_error(-n);
+ return;
+ }
+ break;
default:
WARN_ON_ONCE(1);
req->error = BLK_STS_NOTSUPP;
diff --git a/arch/um/drivers/vector_kern.c b/arch/um/drivers/vector_kern.c
index 4fc1a5d70dcf..1d6f6a66766c 100644
--- a/arch/um/drivers/vector_kern.c
+++ b/arch/um/drivers/vector_kern.c
@@ -67,6 +67,7 @@ static LIST_HEAD(vector_devices);
static int driver_registered;
static void vector_eth_configure(int n, struct arglist *def);
+static int vector_mmsg_rx(struct vector_private *vp, int budget);
/* Argument accessors to set variables (and/or set default values)
* mtu, buffer sizing, default headroom, etc
@@ -77,7 +78,6 @@ static void vector_eth_configure(int n, struct arglist *def);
#define DEFAULT_VECTOR_SIZE 64
#define TX_SMALL_PACKET 128
#define MAX_IOV_SIZE (MAX_SKB_FRAGS + 1)
-#define MAX_ITERATIONS 64
static const struct {
const char string[ETH_GSTRING_LEN];
@@ -458,7 +458,6 @@ static int vector_send(struct vector_queue *qi)
vp->estats.tx_queue_running_average =
(vp->estats.tx_queue_running_average + result) >> 1;
}
- netif_trans_update(qi->dev);
netif_wake_queue(qi->dev);
/* if TX is busy, break out of the send loop,
* poll write IRQ will reschedule xmit for us
@@ -470,8 +469,6 @@ static int vector_send(struct vector_queue *qi)
}
}
spin_unlock(&qi->head_lock);
- } else {
- tasklet_schedule(&vp->tx_poll);
}
return queue_depth;
}
@@ -608,7 +605,7 @@ out_fail:
/*
* We do not use the RX queue as a proper wraparound queue for now
- * This is not necessary because the consumption via netif_rx()
+ * This is not necessary because the consumption via napi_gro_receive()
* happens in-line. While we can try using the return code of
* netif_rx() for flow control there are no drivers doing this today.
* For this RX specific use we ignore the tail/head locks and
@@ -896,7 +893,7 @@ static int vector_legacy_rx(struct vector_private *vp)
skb->protocol = eth_type_trans(skb, skb->dev);
vp->dev->stats.rx_bytes += skb->len;
vp->dev->stats.rx_packets++;
- netif_rx(skb);
+ napi_gro_receive(&vp->napi, skb);
} else {
dev_kfree_skb_irq(skb);
}
@@ -955,7 +952,7 @@ drop:
* mmsg vector matched to an skb vector which we prepared earlier.
*/
-static int vector_mmsg_rx(struct vector_private *vp)
+static int vector_mmsg_rx(struct vector_private *vp, int budget)
{
int packet_count, i;
struct vector_queue *qi = vp->rx_queue;
@@ -972,6 +969,9 @@ static int vector_mmsg_rx(struct vector_private *vp)
/* Fire the Lazy Gun - get as many packets as we can in one go. */
+ if (budget > qi->max_depth)
+ budget = qi->max_depth;
+
packet_count = uml_vector_recvmmsg(
vp->fds->rx_fd, qi->mmsg_vector, qi->max_depth, 0);
@@ -1021,7 +1021,7 @@ static int vector_mmsg_rx(struct vector_private *vp)
*/
vp->dev->stats.rx_bytes += skb->len;
vp->dev->stats.rx_packets++;
- netif_rx(skb);
+ napi_gro_receive(&vp->napi, skb);
} else {
/* Overlay header too short to do anything - discard.
* We can actually keep this skb and reuse it,
@@ -1044,23 +1044,6 @@ static int vector_mmsg_rx(struct vector_private *vp)
return packet_count;
}
-static void vector_rx(struct vector_private *vp)
-{
- int err;
- int iter = 0;
-
- if ((vp->options & VECTOR_RX) > 0)
- while (((err = vector_mmsg_rx(vp)) > 0) && (iter < MAX_ITERATIONS))
- iter++;
- else
- while (((err = vector_legacy_rx(vp)) > 0) && (iter < MAX_ITERATIONS))
- iter++;
- if ((err != 0) && net_ratelimit())
- netdev_err(vp->dev, "vector_rx: error(%d)\n", err);
- if (iter == MAX_ITERATIONS)
- netdev_err(vp->dev, "vector_rx: device stuck, remote end may have closed the connection\n");
-}
-
static int vector_net_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct vector_private *vp = netdev_priv(dev);
@@ -1085,25 +1068,15 @@ static int vector_net_start_xmit(struct sk_buff *skb, struct net_device *dev)
netdev_sent_queue(vp->dev, skb->len);
queue_depth = vector_enqueue(vp->tx_queue, skb);
- /* if the device queue is full, stop the upper layers and
- * flush it.
- */
-
- if (queue_depth >= vp->tx_queue->max_depth - 1) {
- vp->estats.tx_kicks++;
- netif_stop_queue(dev);
- vector_send(vp->tx_queue);
- return NETDEV_TX_OK;
- }
- if (netdev_xmit_more()) {
+ if (queue_depth < vp->tx_queue->max_depth && netdev_xmit_more()) {
mod_timer(&vp->tl, vp->coalesce);
return NETDEV_TX_OK;
+ } else {
+ queue_depth = vector_send(vp->tx_queue);
+ if (queue_depth > 0)
+ napi_schedule(&vp->napi);
}
- if (skb->len < TX_SMALL_PACKET) {
- vp->estats.tx_kicks++;
- vector_send(vp->tx_queue);
- } else
- tasklet_schedule(&vp->tx_poll);
+
return NETDEV_TX_OK;
}
@@ -1114,7 +1087,7 @@ static irqreturn_t vector_rx_interrupt(int irq, void *dev_id)
if (!netif_running(dev))
return IRQ_NONE;
- vector_rx(vp);
+ napi_schedule(&vp->napi);
return IRQ_HANDLED;
}
@@ -1133,8 +1106,7 @@ static irqreturn_t vector_tx_interrupt(int irq, void *dev_id)
* tweaking the IRQ mask less costly
*/
- if (vp->in_write_poll)
- tasklet_schedule(&vp->tx_poll);
+ napi_schedule(&vp->napi);
return IRQ_HANDLED;
}
@@ -1161,7 +1133,8 @@ static int vector_net_close(struct net_device *dev)
um_free_irq(vp->tx_irq, dev);
vp->tx_irq = 0;
}
- tasklet_kill(&vp->tx_poll);
+ napi_disable(&vp->napi);
+ netif_napi_del(&vp->napi);
if (vp->fds->rx_fd > 0) {
if (vp->bpf)
uml_vector_detach_bpf(vp->fds->rx_fd, vp->bpf);
@@ -1193,15 +1166,32 @@ static int vector_net_close(struct net_device *dev)
return 0;
}
-/* TX tasklet */
-
-static void vector_tx_poll(struct tasklet_struct *t)
+static int vector_poll(struct napi_struct *napi, int budget)
{
- struct vector_private *vp = from_tasklet(vp, t, tx_poll);
+ struct vector_private *vp = container_of(napi, struct vector_private, napi);
+ int work_done = 0;
+ int err;
+ bool tx_enqueued = false;
- vp->estats.tx_kicks++;
- vector_send(vp->tx_queue);
+ if ((vp->options & VECTOR_TX) != 0)
+ tx_enqueued = (vector_send(vp->tx_queue) > 0);
+ if ((vp->options & VECTOR_RX) > 0)
+ err = vector_mmsg_rx(vp, budget);
+ else {
+ err = vector_legacy_rx(vp);
+ if (err > 0)
+ err = 1;
+ }
+ if (err > 0)
+ work_done += err;
+
+ if (tx_enqueued || err > 0)
+ napi_schedule(napi);
+ if (work_done < budget)
+ napi_complete_done(napi, work_done);
+ return work_done;
}
+
static void vector_reset_tx(struct work_struct *work)
{
struct vector_private *vp =
@@ -1265,6 +1255,9 @@ static int vector_net_open(struct net_device *dev)
goto out_close;
}
+ netif_napi_add(vp->dev, &vp->napi, vector_poll, get_depth(vp->parsed));
+ napi_enable(&vp->napi);
+
/* READ IRQ */
err = um_request_irq(
irq_rr + VECTOR_BASE_IRQ, vp->fds->rx_fd,
@@ -1306,15 +1299,15 @@ static int vector_net_open(struct net_device *dev)
uml_vector_attach_bpf(vp->fds->rx_fd, vp->bpf);
netif_start_queue(dev);
+ vector_reset_stats(vp);
/* clear buffer - it can happen that the host side of the interface
* is full when we get here. In this case, new data is never queued,
* SIGIOs never arrive, and the net never works.
*/
- vector_rx(vp);
+ napi_schedule(&vp->napi);
- vector_reset_stats(vp);
vdevice = find_device(vp->unit);
vdevice->opened = 1;
@@ -1543,15 +1536,16 @@ static const struct net_device_ops vector_netdev_ops = {
#endif
};
-
static void vector_timer_expire(struct timer_list *t)
{
struct vector_private *vp = from_timer(vp, t, tl);
vp->estats.tx_kicks++;
- vector_send(vp->tx_queue);
+ napi_schedule(&vp->napi);
}
+
+
static void vector_eth_configure(
int n,
struct arglist *def
@@ -1634,7 +1628,6 @@ static void vector_eth_configure(
});
dev->features = dev->hw_features = (NETIF_F_SG | NETIF_F_FRAGLIST);
- tasklet_setup(&vp->tx_poll, vector_tx_poll);
INIT_WORK(&vp->reset_tx, vector_reset_tx);
timer_setup(&vp->tl, vector_timer_expire, 0);
diff --git a/arch/um/drivers/vector_kern.h b/arch/um/drivers/vector_kern.h
index 8fff93a75a92..2a1fa8e0f3e1 100644
--- a/arch/um/drivers/vector_kern.h
+++ b/arch/um/drivers/vector_kern.h
@@ -14,6 +14,7 @@
#include <linux/ctype.h>
#include <linux/workqueue.h>
#include <linux/interrupt.h>
+
#include "vector_user.h"
/* Queue structure specially adapted for multiple enqueue/dequeue
@@ -72,6 +73,7 @@ struct vector_private {
struct list_head list;
spinlock_t lock;
struct net_device *dev;
+ struct napi_struct napi ____cacheline_aligned;
int unit;
@@ -115,7 +117,6 @@ struct vector_private {
spinlock_t stats_lock;
- struct tasklet_struct tx_poll;
bool rexmit_scheduled;
bool opened;
bool in_write_poll;
diff --git a/arch/um/drivers/vector_user.c b/arch/um/drivers/vector_user.c
index e4ffeb9a1fa4..c650e428432b 100644
--- a/arch/um/drivers/vector_user.c
+++ b/arch/um/drivers/vector_user.c
@@ -771,7 +771,7 @@ int uml_vector_detach_bpf(int fd, void *bpf)
printk(KERN_ERR BPF_DETACH_FAIL, prog->len, prog->filter, fd, -errno);
return err;
}
-void *uml_vector_default_bpf(void *mac)
+void *uml_vector_default_bpf(const void *mac)
{
struct sock_filter *bpf;
uint32_t *mac1 = (uint32_t *)(mac + 2);
diff --git a/arch/um/drivers/vector_user.h b/arch/um/drivers/vector_user.h
index d29d5fdd98fa..3a73d17a0161 100644
--- a/arch/um/drivers/vector_user.h
+++ b/arch/um/drivers/vector_user.h
@@ -97,7 +97,7 @@ extern int uml_vector_recvmmsg(
unsigned int vlen,
unsigned int flags
);
-extern void *uml_vector_default_bpf(void *mac);
+extern void *uml_vector_default_bpf(const void *mac);
extern void *uml_vector_user_bpf(char *filename);
extern int uml_vector_attach_bpf(int fd, void *bpf);
extern int uml_vector_detach_bpf(int fd, void *bpf);
diff --git a/arch/um/include/asm/xor.h b/arch/um/include/asm/xor.h
index f512704a9ec7..22b39de73c24 100644
--- a/arch/um/include/asm/xor.h
+++ b/arch/um/include/asm/xor.h
@@ -4,8 +4,10 @@
#ifdef CONFIG_64BIT
#undef CONFIG_X86_32
+#define TT_CPU_INF_XOR_DEFAULT (AVX_SELECT(&xor_block_sse_pf64))
#else
#define CONFIG_X86_32 1
+#define TT_CPU_INF_XOR_DEFAULT (AVX_SELECT(&xor_block_8regs))
#endif
#include <asm/cpufeature.h>
@@ -16,7 +18,7 @@
#undef XOR_SELECT_TEMPLATE
/* pick an arbitrary one - measuring isn't possible with inf-cpu */
#define XOR_SELECT_TEMPLATE(x) \
- (time_travel_mode == TT_MODE_INFCPU ? &xor_block_8regs : NULL)
+ (time_travel_mode == TT_MODE_INFCPU ? TT_CPU_INF_XOR_DEFAULT : x))
#endif
#endif
diff --git a/arch/um/include/shared/os.h b/arch/um/include/shared/os.h
index 00214059d9ec..fafde1d5416e 100644
--- a/arch/um/include/shared/os.h
+++ b/arch/um/include/shared/os.h
@@ -168,6 +168,7 @@ extern unsigned os_major(unsigned long long dev);
extern unsigned os_minor(unsigned long long dev);
extern unsigned long long os_makedev(unsigned major, unsigned minor);
extern int os_falloc_punch(int fd, unsigned long long offset, int count);
+extern int os_falloc_zeroes(int fd, unsigned long long offset, int count);
extern int os_eventfd(unsigned int initval, int flags);
extern int os_sendmsg_fds(int fd, const void *buf, unsigned int len,
const int *fds, unsigned int fds_num);
diff --git a/arch/um/kernel/dtb.c b/arch/um/kernel/dtb.c
index ca69d72025f3..484141b06938 100644
--- a/arch/um/kernel/dtb.c
+++ b/arch/um/kernel/dtb.c
@@ -25,8 +25,8 @@ void uml_dtb_init(void)
return;
}
- unflatten_device_tree();
early_init_fdt_scan_reserved_mem();
+ unflatten_device_tree();
}
static int __init uml_dtb_setup(char *line, int *add)
diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c
index e4421dbc4c36..fc4450db59bd 100644
--- a/arch/um/os-Linux/file.c
+++ b/arch/um/os-Linux/file.c
@@ -625,6 +625,15 @@ int os_falloc_punch(int fd, unsigned long long offset, int len)
return n;
}
+int os_falloc_zeroes(int fd, unsigned long long offset, int len)
+{
+ int n = fallocate(fd, FALLOC_FL_ZERO_RANGE|FALLOC_FL_KEEP_SIZE, offset, len);
+
+ if (n < 0)
+ return -errno;
+ return n;
+}
+
int os_eventfd(unsigned int initval, int flags)
{
int fd = eventfd(initval, flags);
diff --git a/arch/um/os-Linux/helper.c b/arch/um/os-Linux/helper.c
index 32e88baf18dd..b459745f52e2 100644
--- a/arch/um/os-Linux/helper.c
+++ b/arch/um/os-Linux/helper.c
@@ -4,6 +4,7 @@
*/
#include <stdlib.h>
+#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <sched.h>
@@ -99,6 +100,10 @@ int run_helper(void (*pre_exec)(void *), void *pre_data, char **argv)
CATCH_EINTR(waitpid(pid, NULL, __WALL));
}
+ if (ret < 0)
+ printk(UM_KERN_ERR "run_helper : failed to exec %s on host: %s\n",
+ argv[0], strerror(-ret));
+
out_free2:
kfree(data.buf);
out_close:
diff --git a/arch/um/os-Linux/time.c b/arch/um/os-Linux/time.c
index 6c5041c5560b..4d5591d96d8c 100644
--- a/arch/um/os-Linux/time.c
+++ b/arch/um/os-Linux/time.c
@@ -18,12 +18,6 @@
static timer_t event_high_res_timer = 0;
-static inline long long timeval_to_ns(const struct timeval *tv)
-{
- return ((long long) tv->tv_sec * UM_NSEC_PER_SEC) +
- tv->tv_usec * UM_NSEC_PER_USEC;
-}
-
static inline long long timespec_to_ns(const struct timespec *ts)
{
return ((long long) ts->tv_sec * UM_NSEC_PER_SEC) + ts->tv_nsec;
diff --git a/arch/x86/um/shared/sysdep/syscalls_64.h b/arch/x86/um/shared/sysdep/syscalls_64.h
index 48d6cd12f8a5..b6b997225841 100644
--- a/arch/x86/um/shared/sysdep/syscalls_64.h
+++ b/arch/x86/um/shared/sysdep/syscalls_64.h
@@ -10,13 +10,12 @@
#include <linux/msg.h>
#include <linux/shm.h>
-typedef long syscall_handler_t(void);
+typedef long syscall_handler_t(long, long, long, long, long, long);
extern syscall_handler_t *sys_call_table[];
#define EXECUTE_SYSCALL(syscall, regs) \
- (((long (*)(long, long, long, long, long, long)) \
- (*sys_call_table[syscall]))(UPT_SYSCALL_ARG1(&regs->regs), \
+ (((*sys_call_table[syscall]))(UPT_SYSCALL_ARG1(&regs->regs), \
UPT_SYSCALL_ARG2(&regs->regs), \
UPT_SYSCALL_ARG3(&regs->regs), \
UPT_SYSCALL_ARG4(&regs->regs), \
diff --git a/arch/x86/um/syscalls_64.c b/arch/x86/um/syscalls_64.c
index fe5323f0c42d..27b29ae6c471 100644
--- a/arch/x86/um/syscalls_64.c
+++ b/arch/x86/um/syscalls_64.c
@@ -12,7 +12,6 @@
#include <asm/prctl.h> /* XXX This should get the constants from libc */
#include <registers.h>
#include <os.h>
-#include <registers.h>
long arch_prctl(struct task_struct *task, int option,
unsigned long __user *arg2)
diff --git a/lib/logic_iomem.c b/lib/logic_iomem.c
index 8c3365f26e51..b247d412ddef 100644
--- a/lib/logic_iomem.c
+++ b/lib/logic_iomem.c
@@ -68,7 +68,7 @@ int logic_iomem_add_region(struct resource *resource,
}
EXPORT_SYMBOL(logic_iomem_add_region);
-#ifndef CONFIG_LOGIC_IOMEM_FALLBACK
+#ifndef CONFIG_INDIRECT_IOMEM_FALLBACK
static void __iomem *real_ioremap(phys_addr_t offset, size_t size)
{
WARN(1, "invalid ioremap(0x%llx, 0x%zx)\n",
@@ -81,7 +81,7 @@ static void real_iounmap(volatile void __iomem *addr)
WARN(1, "invalid iounmap for addr 0x%llx\n",
(unsigned long long)(uintptr_t __force)addr);
}
-#endif /* CONFIG_LOGIC_IOMEM_FALLBACK */
+#endif /* CONFIG_INDIRECT_IOMEM_FALLBACK */
void __iomem *ioremap(phys_addr_t offset, size_t size)
{
@@ -168,7 +168,7 @@ void iounmap(volatile void __iomem *addr)
}
EXPORT_SYMBOL(iounmap);
-#ifndef CONFIG_LOGIC_IOMEM_FALLBACK
+#ifndef CONFIG_INDIRECT_IOMEM_FALLBACK
#define MAKE_FALLBACK(op, sz) \
static u##sz real_raw_read ## op(const volatile void __iomem *addr) \
{ \
@@ -213,7 +213,7 @@ static void real_memcpy_toio(volatile void __iomem *addr, const void *buffer,
WARN(1, "Invalid memcpy_toio at address 0x%llx\n",
(unsigned long long)(uintptr_t __force)addr);
}
-#endif /* CONFIG_LOGIC_IOMEM_FALLBACK */
+#endif /* CONFIG_INDIRECT_IOMEM_FALLBACK */
#define MAKE_OP(op, sz) \
u##sz __raw_read ## op(const volatile void __iomem *addr) \
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-20 05:44:29 +0000