[Qemu-devel] [PATCH v2 0/5] Remove unused functions

[Qemu-devel] [PATCH v2 0/5] Remove unused functions

[Thomas Huth]

There are quite a lot of completely unused functions scattered
around in the QEMU sources - here are some patches to remove at
least some of them.

v2:
- Incorporated review feedback to keep the functions that still might
  be usefull (e.g. dropped the patch to remove unused functions in the
  block layer)
- Added a patch to remove xen_cmos_set_s3_resume()

Thomas Huth (5):
  migration: Remove unused functions
  ui: Removed unused functions
  ui/vnc: Remove vnc_stop_worker_thread()
  util: Remove unused functions
  xen: Remove xen_cmos_set_s3_resume()

 arch_init.c                   |   10 ------
 include/hw/xen/xen.h          |    1 -
 include/migration/migration.h |    3 --
 include/migration/qemu-file.h |    2 -
 include/qemu-common.h         |    4 --
 include/qemu/compatfd.h       |    1 -
 include/ui/console.h          |    3 --
 migration/migration.c         |    9 -----
 migration/qemu-file-buf.c     |   53 ---------------------------------
 ui/console.c                  |   12 -------
 ui/d3des.c                    |    9 -----
 ui/d3des.h                    |    6 ----
 ui/input-legacy.c             |    6 ----
 ui/vnc-jobs.c                 |   13 --------
 ui/vnc-jobs.h                 |    1 -
 util/compatfd.c               |   19 ------------
 util/osdep.c                  |   66 -----------------------------------------
 xen-hvm-stub.c                |    4 --
 18 files changed, 0 insertions(+), 222 deletions(-)

[Qemu-devel] [PATCH 1/5] migration: Remove unused functions

[Thomas Huth]

dup_mig_bytes_transferred(), skipped_mig_bytes_transferred(),
migrate_rdma_pin_all(), qsb_clone() and qsb_set_length()
are completely unused and thus can be deleted.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Cc: Juan Quintela <quintela@redhat.com>
Cc: Amit Shah <amit.shah@redhat.com>
---
 arch_init.c                   |   10 -------
 include/migration/migration.h |    3 --
 include/migration/qemu-file.h |    2 -
 migration/migration.c         |    9 -------
 migration/qemu-file-buf.c     |   53 -----------------------------------------
 5 files changed, 0 insertions(+), 77 deletions(-)

diff --git a/arch_init.c b/arch_init.c
index 89c8fa4..ad5ce28 100644
--- a/arch_init.c
+++ b/arch_init.c
@@ -249,21 +249,11 @@ static void acct_clear(void)
     memset(&acct_info, 0, sizeof(acct_info));
 }
 
-uint64_t dup_mig_bytes_transferred(void)
-{
-    return acct_info.dup_pages * TARGET_PAGE_SIZE;
-}
-
 uint64_t dup_mig_pages_transferred(void)
 {
     return acct_info.dup_pages;
 }
 
-uint64_t skipped_mig_bytes_transferred(void)
-{
-    return acct_info.skipped_pages * TARGET_PAGE_SIZE;
-}
-
 uint64_t skipped_mig_pages_transferred(void)
 {
     return acct_info.skipped_pages;
diff --git a/include/migration/migration.h b/include/migration/migration.h
index f37348b..7f6cdaa 100644
--- a/include/migration/migration.h
+++ b/include/migration/migration.h
@@ -115,9 +115,7 @@ void free_xbzrle_decoded_buf(void);
 
 void acct_update_position(QEMUFile *f, size_t size, bool zero);
 
-uint64_t dup_mig_bytes_transferred(void);
 uint64_t dup_mig_pages_transferred(void);
-uint64_t skipped_mig_bytes_transferred(void);
 uint64_t skipped_mig_pages_transferred(void);
 uint64_t norm_mig_bytes_transferred(void);
 uint64_t norm_mig_pages_transferred(void);
@@ -143,7 +141,6 @@ void migrate_add_blocker(Error *reason);
  */
 void migrate_del_blocker(Error *reason);
 
-bool migrate_rdma_pin_all(void);
 bool migrate_zero_blocks(void);
 
 bool migrate_auto_converge(void);
diff --git a/include/migration/qemu-file.h b/include/migration/qemu-file.h
index a923cec..45d7f71 100644
--- a/include/migration/qemu-file.h
+++ b/include/migration/qemu-file.h
@@ -133,9 +133,7 @@ bool qemu_file_mode_is_not_valid(const char *mode);
 bool qemu_file_is_writable(QEMUFile *f);
 
 QEMUSizedBuffer *qsb_create(const uint8_t *buffer, size_t len);
-QEMUSizedBuffer *qsb_clone(const QEMUSizedBuffer *);
 void qsb_free(QEMUSizedBuffer *);
-size_t qsb_set_length(QEMUSizedBuffer *qsb, size_t length);
 size_t qsb_get_length(const QEMUSizedBuffer *qsb);
 ssize_t qsb_get_buffer(const QEMUSizedBuffer *, off_t start, size_t count,
                        uint8_t *buf);
diff --git a/migration/migration.c b/migration/migration.c
index b3adbc6..6f1a490 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -540,15 +540,6 @@ void qmp_migrate_set_downtime(double value, Error **errp)
     max_downtime = (uint64_t)value;
 }
 
-bool migrate_rdma_pin_all(void)
-{
-    MigrationState *s;
-
-    s = migrate_get_current();
-
-    return s->enabled_capabilities[MIGRATION_CAPABILITY_RDMA_PIN_ALL];
-}
-
 bool migrate_auto_converge(void)
 {
     MigrationState *s;
diff --git a/migration/qemu-file-buf.c b/migration/qemu-file-buf.c
index e97e0bd..3b79c09 100644
--- a/migration/qemu-file-buf.c
+++ b/migration/qemu-file-buf.c
@@ -124,28 +124,6 @@ size_t qsb_get_length(const QEMUSizedBuffer *qsb)
 }
 
 /**
- * Set the length of the buffer; the primary usage of this
- * function is to truncate the number of used bytes in the buffer.
- * The size will not be extended beyond the current number of
- * allocated bytes in the QEMUSizedBuffer.
- *
- * @qsb: A QEMUSizedBuffer
- * @new_len: The new length of bytes in the buffer
- *
- * Returns the number of bytes the buffer was truncated or extended
- * to.
- */
-size_t qsb_set_length(QEMUSizedBuffer *qsb, size_t new_len)
-{
-    if (new_len <= qsb->size) {
-        qsb->used = new_len;
-    } else {
-        qsb->used = qsb->size;
-    }
-    return qsb->used;
-}
-
-/**
  * Get the iovec that holds the data for a given position @pos.
  *
  * @qsb: A QEMUSizedBuffer
@@ -361,37 +339,6 @@ ssize_t qsb_write_at(QEMUSizedBuffer *qsb, const uint8_t *source,
     return count;
 }
 
-/**
- * Create a deep copy of the given QEMUSizedBuffer.
- *
- * @qsb: A QEMUSizedBuffer
- *
- * Returns a clone of @qsb or NULL on allocation failure
- */
-QEMUSizedBuffer *qsb_clone(const QEMUSizedBuffer *qsb)
-{
-    QEMUSizedBuffer *out = qsb_create(NULL, qsb_get_length(qsb));
-    size_t i;
-    ssize_t res;
-    off_t pos = 0;
-
-    if (!out) {
-        return NULL;
-    }
-
-    for (i = 0; i < qsb->n_iov; i++) {
-        res =  qsb_write_at(out, qsb->iov[i].iov_base,
-                            pos, qsb->iov[i].iov_len);
-        if (res < 0) {
-            qsb_free(out);
-            return NULL;
-        }
-        pos += res;
-    }
-
-    return out;
-}
-
 typedef struct QEMUBuffer {
     QEMUSizedBuffer *qsb;
     QEMUFile *file;
-- 
1.7.1

Re: [Qemu-devel] [PATCH 1/5] migration: Remove unused functions

[Amit Shah]

On (Thu) 19 Feb 2015 [18:12:19], Thomas Huth wrote:
> dup_mig_bytes_transferred(), skipped_mig_bytes_transferred(),
> migrate_rdma_pin_all(), qsb_clone() and qsb_set_length()
> are completely unused and thus can be deleted.
> 
> Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
> Cc: Juan Quintela <quintela@redhat.com>
> Cc: Amit Shah <amit.shah@redhat.com>
> ---
>  arch_init.c                   |   10 -------
>  include/migration/migration.h |    3 --
>  include/migration/qemu-file.h |    2 -
>  migration/migration.c         |    9 -------
>  migration/qemu-file-buf.c     |   53 -----------------------------------------
>  5 files changed, 0 insertions(+), 77 deletions(-)
> 
> diff --git a/arch_init.c b/arch_init.c
> index 89c8fa4..ad5ce28 100644
> --- a/arch_init.c
> +++ b/arch_init.c
> @@ -249,21 +249,11 @@ static void acct_clear(void)
>      memset(&acct_info, 0, sizeof(acct_info));
>  }
>  
> -uint64_t dup_mig_bytes_transferred(void)
> -{
> -    return acct_info.dup_pages * TARGET_PAGE_SIZE;
> -}
> -
>  uint64_t dup_mig_pages_transferred(void)
>  {
>      return acct_info.dup_pages;
>  }
>  
> -uint64_t skipped_mig_bytes_transferred(void)
> -{
> -    return acct_info.skipped_pages * TARGET_PAGE_SIZE;
> -}

These could be used for reporting; Juan, any idea why these aren't
used?

Rest of the patch is fine.

		Amit

Re: [Qemu-devel] [PATCH 1/5] migration: Remove unused functions

[Thomas Huth]

On Tue, 24 Feb 2015 14:58:29 +0530
Amit Shah <amit.shah@redhat.com> wrote:

> On (Thu) 19 Feb 2015 [18:12:19], Thomas Huth wrote:
> > dup_mig_bytes_transferred(), skipped_mig_bytes_transferred(),
> > migrate_rdma_pin_all(), qsb_clone() and qsb_set_length()
> > are completely unused and thus can be deleted.
> > 
> > Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
> > Cc: Juan Quintela <quintela@redhat.com>
> > Cc: Amit Shah <amit.shah@redhat.com>
> > ---
> >  arch_init.c                   |   10 -------
> >  include/migration/migration.h |    3 --
> >  include/migration/qemu-file.h |    2 -
> >  migration/migration.c         |    9 -------
> >  migration/qemu-file-buf.c     |   53 -----------------------------------------
> >  5 files changed, 0 insertions(+), 77 deletions(-)
> > 
> > diff --git a/arch_init.c b/arch_init.c
> > index 89c8fa4..ad5ce28 100644
> > --- a/arch_init.c
> > +++ b/arch_init.c
> > @@ -249,21 +249,11 @@ static void acct_clear(void)
> >      memset(&acct_info, 0, sizeof(acct_info));
> >  }
> >  
> > -uint64_t dup_mig_bytes_transferred(void)
> > -{
> > -    return acct_info.dup_pages * TARGET_PAGE_SIZE;
> > -}
> > -
> >  uint64_t dup_mig_pages_transferred(void)
> >  {
> >      return acct_info.dup_pages;
> >  }
> >  
> > -uint64_t skipped_mig_bytes_transferred(void)
> > -{
> > -    return acct_info.skipped_pages * TARGET_PAGE_SIZE;
> > -}
> 
> These could be used for reporting; Juan, any idea why these aren't
> used?

Since they are very trivial, I think they could easily be re-added
again in case they are needed again in the future.
Or if you prefer, I can also rework my patch so that these two
functions won't get deleted.

 Thomas

Re: [Qemu-devel] [PATCH 1/5] migration: Remove unused functions

[Amit Shah]

On (Tue) 24 Feb 2015 [17:28:36], Thomas Huth wrote:
> On Tue, 24 Feb 2015 14:58:29 +0530
> Amit Shah <amit.shah@redhat.com> wrote:
> 
> > On (Thu) 19 Feb 2015 [18:12:19], Thomas Huth wrote:
> > > dup_mig_bytes_transferred(), skipped_mig_bytes_transferred(),
> > > migrate_rdma_pin_all(), qsb_clone() and qsb_set_length()
> > > are completely unused and thus can be deleted.
> > > 
> > > Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
> > > Cc: Juan Quintela <quintela@redhat.com>
> > > Cc: Amit Shah <amit.shah@redhat.com>
> > > ---
> > >  arch_init.c                   |   10 -------
> > >  include/migration/migration.h |    3 --
> > >  include/migration/qemu-file.h |    2 -
> > >  migration/migration.c         |    9 -------
> > >  migration/qemu-file-buf.c     |   53 -----------------------------------------
> > >  5 files changed, 0 insertions(+), 77 deletions(-)
> > > 
> > > diff --git a/arch_init.c b/arch_init.c
> > > index 89c8fa4..ad5ce28 100644
> > > --- a/arch_init.c
> > > +++ b/arch_init.c
> > > @@ -249,21 +249,11 @@ static void acct_clear(void)
> > >      memset(&acct_info, 0, sizeof(acct_info));
> > >  }
> > >  
> > > -uint64_t dup_mig_bytes_transferred(void)
> > > -{
> > > -    return acct_info.dup_pages * TARGET_PAGE_SIZE;
> > > -}
> > > -
> > >  uint64_t dup_mig_pages_transferred(void)
> > >  {
> > >      return acct_info.dup_pages;
> > >  }
> > >  
> > > -uint64_t skipped_mig_bytes_transferred(void)
> > > -{
> > > -    return acct_info.skipped_pages * TARGET_PAGE_SIZE;
> > > -}
> > 
> > These could be used for reporting; Juan, any idea why these aren't
> > used?
> 
> Since they are very trivial, I think they could easily be re-added
> again in case they are needed again in the future.
> Or if you prefer, I can also rework my patch so that these two
> functions won't get deleted.

I'm just asking Juan if he knows why these are around; I don't mind if
we get rid of them, but good to get confirmation from Juan (else we
needlessly end up churning code).

		Amit

[Qemu-devel] [PATCH 2/5] ui: Removed unused functions

[Thomas Huth]

Remove qemu_console_displaystate(), qemu_remove_kbd_event_handler(),
qemu_different_endianness_pixelformat() and cpkey(), since they are
completely unused.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Cc: Anthony Liguori <aliguori@amazon.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
---
 include/ui/console.h |    3 ---
 ui/console.c         |   12 ------------
 ui/d3des.c           |    9 ---------
 ui/d3des.h           |    6 ------
 ui/input-legacy.c    |    6 ------
 5 files changed, 0 insertions(+), 36 deletions(-)

diff --git a/include/ui/console.h b/include/ui/console.h
index 8a4d671..7c3b5d4 100644
--- a/include/ui/console.h
+++ b/include/ui/console.h
@@ -36,7 +36,6 @@ typedef struct QEMUPutLEDEntry QEMUPutLEDEntry;
 
 QEMUPutKbdEntry *qemu_add_kbd_event_handler(QEMUPutKBDEvent *func,
                                             void *opaque);
-void qemu_remove_kbd_event_handler(QEMUPutKbdEntry *entry);
 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
                                                 void *opaque, int absolute,
                                                 const char *name);
@@ -194,7 +193,6 @@ DisplaySurface *qemu_create_displaysurface_guestmem(int width, int height,
                                                     pixman_format_code_t format,
                                                     int linesize,
                                                     uint64_t addr);
-PixelFormat qemu_different_endianness_pixelformat(int bpp);
 PixelFormat qemu_default_pixelformat(int bpp);
 
 DisplaySurface *qemu_create_displaysurface(int width, int height);
@@ -322,7 +320,6 @@ void qemu_console_resize(QemuConsole *con, int width, int height);
 void qemu_console_copy(QemuConsole *con, int src_x, int src_y,
                        int dst_x, int dst_y, int w, int h);
 DisplaySurface *qemu_console_surface(QemuConsole *con);
-DisplayState *qemu_console_displaystate(QemuConsole *console);
 
 /* sdl.c */
 void sdl_display_init(DisplayState *ds, int full_screen, int no_frame);
diff --git a/ui/console.c b/ui/console.c
index 87574a7..87af6b5 100644
--- a/ui/console.c
+++ b/ui/console.c
@@ -2005,18 +2005,6 @@ DisplaySurface *qemu_console_surface(QemuConsole *console)
     return console->surface;
 }
 
-DisplayState *qemu_console_displaystate(QemuConsole *console)
-{
-    return console->ds;
-}
-
-PixelFormat qemu_different_endianness_pixelformat(int bpp)
-{
-    pixman_format_code_t fmt = qemu_default_pixman_format(bpp, false);
-    PixelFormat pf = qemu_pixelformat_from_pixman(fmt);
-    return pf;
-}
-
 PixelFormat qemu_default_pixelformat(int bpp)
 {
     pixman_format_code_t fmt = qemu_default_pixman_format(bpp, true);
diff --git a/ui/d3des.c b/ui/d3des.c
index 60c840e..5bc99b8 100644
--- a/ui/d3des.c
+++ b/ui/d3des.c
@@ -121,15 +121,6 @@ static void cookey(register unsigned long *raw1)
 	return;
 	}
 
-void cpkey(register unsigned long *into)
-{
-	register unsigned long *from, *endp;
-
-	from = KnL, endp = &KnL[32];
-	while( from < endp ) *into++ = *from++;
-	return;
-	}
-
 void usekey(register unsigned long *from)
 {
 	register unsigned long *to, *endp;
diff --git a/ui/d3des.h b/ui/d3des.h
index 70cb6b5..773667e 100644
--- a/ui/d3des.h
+++ b/ui/d3des.h
@@ -36,12 +36,6 @@ void usekey(unsigned long *);
  * Loads the internal key register with the data in cookedkey.
  */
 
-void cpkey(unsigned long *);
-/*		   cookedkey[32]
- * Copies the contents of the internal key register into the storage
- * located at &cookedkey[0].
- */
-
 void des(unsigned char *, unsigned char *);
 /*		    from[8]	      to[8]
  * Encrypts/Decrypts (according to the key currently loaded in the
diff --git a/ui/input-legacy.c b/ui/input-legacy.c
index a698a34..2d4ca19 100644
--- a/ui/input-legacy.c
+++ b/ui/input-legacy.c
@@ -143,12 +143,6 @@ QEMUPutKbdEntry *qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
     return entry;
 }
 
-void qemu_remove_kbd_event_handler(QEMUPutKbdEntry *entry)
-{
-    qemu_input_handler_unregister(entry->s);
-    g_free(entry);
-}
-
 static void legacy_mouse_event(DeviceState *dev, QemuConsole *src,
                                InputEvent *evt)
 {
-- 
1.7.1

Re: [Qemu-devel] [PATCH 2/5] ui: Removed unused functions

[Gerd Hoffmann]

On Do, 2015-02-19 at 18:12 +0100, Thomas Huth wrote:
> Remove qemu_console_displaystate(), qemu_remove_kbd_event_handler(),
> qemu_different_endianness_pixelformat() and cpkey(), since they are
> completely unused.

Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>

[Qemu-devel] [PATCH 3/5] ui/vnc: Remove vnc_stop_worker_thread()

[Thomas Huth]

This function is not used anymore, let's remove it.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Cc: Anthony Liguori <aliguori@amazon.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
---
 ui/vnc-jobs.c |   13 -------------
 ui/vnc-jobs.h |    1 -
 2 files changed, 0 insertions(+), 14 deletions(-)

diff --git a/ui/vnc-jobs.c b/ui/vnc-jobs.c
index 68f3d77..c8ee203 100644
--- a/ui/vnc-jobs.c
+++ b/ui/vnc-jobs.c
@@ -342,16 +342,3 @@ void vnc_start_worker_thread(void)
                        QEMU_THREAD_DETACHED);
     queue = q; /* Set global queue */
 }
-
-void vnc_stop_worker_thread(void)
-{
-    if (!vnc_worker_thread_running())
-        return ;
-
-    /* Remove all jobs and wake up the thread */
-    vnc_lock_queue(queue);
-    queue->exit = true;
-    vnc_unlock_queue(queue);
-    vnc_jobs_clear(NULL);
-    qemu_cond_broadcast(&queue->cond);
-}
diff --git a/ui/vnc-jobs.h b/ui/vnc-jobs.h
index 31da103..044bf9f 100644
--- a/ui/vnc-jobs.h
+++ b/ui/vnc-jobs.h
@@ -40,7 +40,6 @@ void vnc_jobs_join(VncState *vs);
 
 void vnc_jobs_consume_buffer(VncState *vs);
 void vnc_start_worker_thread(void);
-void vnc_stop_worker_thread(void);
 
 /* Locks */
 static inline int vnc_trylock_display(VncDisplay *vd)
-- 
1.7.1

Re: [Qemu-devel] [PATCH 3/5] ui/vnc: Remove vnc_stop_worker_thread()

[Gerd Hoffmann]

On Do, 2015-02-19 at 18:12 +0100, Thomas Huth wrote:
> This function is not used anymore, let's remove it.

Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>

[Qemu-devel] [PATCH 4/5] util: Remove unused functions

[Thomas Huth]

Delete the unused functions qemu_signalfd_available(),
qemu_send_full() and qemu_recv_full().

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Cc: Markus Armbruster <armbru@redhat.com>
---
 include/qemu-common.h   |    4 ---
 include/qemu/compatfd.h |    1 -
 util/compatfd.c         |   19 -------------
 util/osdep.c            |   66 -----------------------------------------------
 4 files changed, 0 insertions(+), 90 deletions(-)

diff --git a/include/qemu-common.h b/include/qemu-common.h
index 644b46d..0aac082 100644
--- a/include/qemu-common.h
+++ b/include/qemu-common.h
@@ -217,10 +217,6 @@ void *qemu_oom_check(void *ptr);
 
 ssize_t qemu_write_full(int fd, const void *buf, size_t count)
     QEMU_WARN_UNUSED_RESULT;
-ssize_t qemu_send_full(int fd, const void *buf, size_t count, int flags)
-    QEMU_WARN_UNUSED_RESULT;
-ssize_t qemu_recv_full(int fd, void *buf, size_t count, int flags)
-    QEMU_WARN_UNUSED_RESULT;
 
 #ifndef _WIN32
 int qemu_pipe(int pipefd[2]);
diff --git a/include/qemu/compatfd.h b/include/qemu/compatfd.h
index 6b04877..fc37915 100644
--- a/include/qemu/compatfd.h
+++ b/include/qemu/compatfd.h
@@ -39,6 +39,5 @@ struct qemu_signalfd_siginfo {
 };
 
 int qemu_signalfd(const sigset_t *mask);
-bool qemu_signalfd_available(void);
 
 #endif
diff --git a/util/compatfd.c b/util/compatfd.c
index 341ada6..e857150 100644
--- a/util/compatfd.c
+++ b/util/compatfd.c
@@ -108,22 +108,3 @@ int qemu_signalfd(const sigset_t *mask)
 
     return qemu_signalfd_compat(mask);
 }
-
-bool qemu_signalfd_available(void)
-{
-#ifdef CONFIG_SIGNALFD
-    sigset_t mask;
-    int fd;
-    bool ok;
-    sigemptyset(&mask);
-    errno = 0;
-    fd = syscall(SYS_signalfd, -1, &mask, _NSIG / 8);
-    ok = (errno != ENOSYS);
-    if (fd >= 0) {
-        close(fd);
-    }
-    return ok;
-#else
-    return false;
-#endif
-}
diff --git a/util/osdep.c b/util/osdep.c
index b2bd154..f938b69 100644
--- a/util/osdep.c
+++ b/util/osdep.c
@@ -310,72 +310,6 @@ int qemu_accept(int s, struct sockaddr *addr, socklen_t *addrlen)
     return ret;
 }
 
-/*
- * A variant of send(2) which handles partial write.
- *
- * Return the number of bytes transferred, which is only
- * smaller than `count' if there is an error.
- *
- * This function won't work with non-blocking fd's.
- * Any of the possibilities with non-bloking fd's is bad:
- *   - return a short write (then name is wrong)
- *   - busy wait adding (errno == EAGAIN) to the loop
- */
-ssize_t qemu_send_full(int fd, const void *buf, size_t count, int flags)
-{
-    ssize_t ret = 0;
-    ssize_t total = 0;
-
-    while (count) {
-        ret = send(fd, buf, count, flags);
-        if (ret < 0) {
-            if (errno == EINTR) {
-                continue;
-            }
-            break;
-        }
-
-        count -= ret;
-        buf += ret;
-        total += ret;
-    }
-
-    return total;
-}
-
-/*
- * A variant of recv(2) which handles partial write.
- *
- * Return the number of bytes transferred, which is only
- * smaller than `count' if there is an error.
- *
- * This function won't work with non-blocking fd's.
- * Any of the possibilities with non-bloking fd's is bad:
- *   - return a short write (then name is wrong)
- *   - busy wait adding (errno == EAGAIN) to the loop
- */
-ssize_t qemu_recv_full(int fd, void *buf, size_t count, int flags)
-{
-    ssize_t ret = 0;
-    ssize_t total = 0;
-
-    while (count) {
-        ret = qemu_recv(fd, buf, count, flags);
-        if (ret <= 0) {
-            if (ret < 0 && errno == EINTR) {
-                continue;
-            }
-            break;
-        }
-
-        count -= ret;
-        buf += ret;
-        total += ret;
-    }
-
-    return total;
-}
-
 void qemu_set_version(const char *version)
 {
     qemu_version = version;
-- 
1.7.1

[Qemu-devel] [PATCH 5/5] xen: Remove xen_cmos_set_s3_resume()

[Thomas Huth]

The function is not used anymore, and thus can be deleted.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
---
 include/hw/xen/xen.h |    1 -
 xen-hvm-stub.c       |    4 ----
 2 files changed, 0 insertions(+), 5 deletions(-)

diff --git a/include/hw/xen/xen.h b/include/hw/xen/xen.h
index b0ed04c..4356af4 100644
--- a/include/hw/xen/xen.h
+++ b/include/hw/xen/xen.h
@@ -32,7 +32,6 @@ int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num);
 void xen_piix3_set_irq(void *opaque, int irq_num, int level);
 void xen_piix_pci_write_config_client(uint32_t address, uint32_t val, int len);
 void xen_hvm_inject_msi(uint64_t addr, uint32_t data);
-void xen_cmos_set_s3_resume(void *opaque, int irq, int level);
 
 qemu_irq *xen_interrupt_controller_init(void);
 
diff --git a/xen-hvm-stub.c b/xen-hvm-stub.c
index 2d98696..46867d8 100644
--- a/xen-hvm-stub.c
+++ b/xen-hvm-stub.c
@@ -30,10 +30,6 @@ void xen_hvm_inject_msi(uint64_t addr, uint32_t data)
 {
 }
 
-void xen_cmos_set_s3_resume(void *opaque, int irq, int level)
-{
-}
-
 void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, MemoryRegion *mr)
 {
 }
-- 
1.7.1

Re: [Qemu-devel] [PATCH 5/5] xen: Remove xen_cmos_set_s3_resume()

[Stefano Stabellini]

On Thu, 19 Feb 2015, Thomas Huth wrote:
> The function is not used anymore, and thus can be deleted.
> 
> Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>



>  include/hw/xen/xen.h |    1 -
>  xen-hvm-stub.c       |    4 ----
>  2 files changed, 0 insertions(+), 5 deletions(-)
> 
> diff --git a/include/hw/xen/xen.h b/include/hw/xen/xen.h
> index b0ed04c..4356af4 100644
> --- a/include/hw/xen/xen.h
> +++ b/include/hw/xen/xen.h
> @@ -32,7 +32,6 @@ int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num);
>  void xen_piix3_set_irq(void *opaque, int irq_num, int level);
>  void xen_piix_pci_write_config_client(uint32_t address, uint32_t val, int len);
>  void xen_hvm_inject_msi(uint64_t addr, uint32_t data);
> -void xen_cmos_set_s3_resume(void *opaque, int irq, int level);
>  
>  qemu_irq *xen_interrupt_controller_init(void);
>  
> diff --git a/xen-hvm-stub.c b/xen-hvm-stub.c
> index 2d98696..46867d8 100644
> --- a/xen-hvm-stub.c
> +++ b/xen-hvm-stub.c
> @@ -30,10 +30,6 @@ void xen_hvm_inject_msi(uint64_t addr, uint32_t data)
>  {
>  }
>  
> -void xen_cmos_set_s3_resume(void *opaque, int irq, int level)
> -{
> -}
> -
>  void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, MemoryRegion *mr)
>  {
>  }
> -- 
> 1.7.1
> 

Re: [Qemu-devel] [PATCH v2 0/5] Remove unused functions

[Michael Tokarev]

19.02.2015 20:12, Thomas Huth wrote:
> There are quite a lot of completely unused functions scattered
> around in the QEMU sources - here are some patches to remove at
> least some of them.

Applied series to -trivial, thank you!

/mjt