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grub2/0137-Remove-nested-functions-from-USB-iterators.patch
Peter Jones f74b50e380 Rebase to upstream, fix a pile of bugs. The usual. 
Signed-off-by: Peter Jones <pjones@redhat.com>
2013-06-12 15:37:08 -04:00

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From c01c5f4a571b66bd330f4312f643f283bc8161c8 Mon Sep 17 00:00:00 2001
From: Colin Watson <cjwatson@ubuntu.com>
Date: Mon, 21 Jan 2013 21:02:24 +0000
Subject: [PATCH 137/482] Remove nested functions from USB iterators.
* include/grub/usb.h (grub_usb_iterate_hook_t): New type.
(grub_usb_controller_iterate_hook_t): Likewise.
(grub_usb_iterate): Add hook_data argument.
(grub_usb_controller_iterate): Likewise.
(struct grub_usb_controller_dev.iterate): Likewise.
Update all implementations and callers.
---
ChangeLog | 12 +++++
grub-core/bus/usb/ehci.c | 4 +-
grub-core/bus/usb/emu/usb.c | 4 +-
grub-core/bus/usb/ohci.c | 4 +-
grub-core/bus/usb/uhci.c | 4 +-
grub-core/bus/usb/usb.c | 120 ++++++++++++++++++++++++-------------------
grub-core/bus/usb/usbhub.c | 4 +-
grub-core/commands/usbtest.c | 4 +-
include/grub/usb.h | 11 ++--
9 files changed, 100 insertions(+), 67 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index cf7a777..08c2c9f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,15 @@
+2013-01-21 Colin Watson <cjwatson@ubuntu.com>
+
+ Remove nested functions from USB iterators.
+
+ * include/grub/usb.h (grub_usb_iterate_hook_t): New type.
+ (grub_usb_controller_iterate_hook_t): Likewise.
+ (grub_usb_iterate): Add hook_data argument.
+ (grub_usb_controller_iterate): Likewise.
+ (struct grub_usb_controller_dev.iterate): Likewise.
+
+ Update all implementations and callers.
+
2013-01-21 Vladimir Serbinenko <phcoder@gmail.com>
* grub-core/normal/term.c (print_ucs4_terminal): Don't output right
diff --git a/grub-core/bus/usb/ehci.c b/grub-core/bus/usb/ehci.c
index b9872b6..9215866 100644
--- a/grub-core/bus/usb/ehci.c
+++ b/grub-core/bus/usb/ehci.c
@@ -870,7 +870,7 @@ fail:
}
static int
-grub_ehci_iterate (int (*hook) (grub_usb_controller_t dev))
+grub_ehci_iterate (grub_usb_controller_iterate_hook_t hook, void *hook_data)
{
struct grub_ehci *e;
struct grub_usb_controller dev;
@@ -878,7 +878,7 @@ grub_ehci_iterate (int (*hook) (grub_usb_controller_t dev))
for (e = ehci; e; e = e->next)
{
dev.data = e;
- if (hook (&dev))
+ if (hook (&dev, hook_data))
return 1;
}
diff --git a/grub-core/bus/usb/emu/usb.c b/grub-core/bus/usb/emu/usb.c
index 38c5f01..3ad2fc3 100644
--- a/grub-core/bus/usb/emu/usb.c
+++ b/grub-core/bus/usb/emu/usb.c
@@ -88,7 +88,7 @@ grub_usb_poll_devices (void)
int
-grub_usb_iterate (int (*hook) (grub_usb_device_t dev))
+grub_usb_iterate (grub_usb_iterate_hook_t hook, void *hook_data)
{
int i;
@@ -96,7 +96,7 @@ grub_usb_iterate (int (*hook) (grub_usb_device_t dev))
{
if (grub_usb_devs[i])
{
- if (hook (grub_usb_devs[i]))
+ if (hook (grub_usb_devs[i], hook_data))
return 1;
}
}
diff --git a/grub-core/bus/usb/ohci.c b/grub-core/bus/usb/ohci.c
index b10a9a3..835bb15 100644
--- a/grub-core/bus/usb/ohci.c
+++ b/grub-core/bus/usb/ohci.c
@@ -483,7 +483,7 @@ grub_ohci_inithw (void)
static int
-grub_ohci_iterate (int (*hook) (grub_usb_controller_t dev))
+grub_ohci_iterate (grub_usb_controller_iterate_hook_t hook, void *hook_data)
{
struct grub_ohci *o;
struct grub_usb_controller dev;
@@ -491,7 +491,7 @@ grub_ohci_iterate (int (*hook) (grub_usb_controller_t dev))
for (o = ohci; o; o = o->next)
{
dev.data = o;
- if (hook (&dev))
+ if (hook (&dev, hook_data))
return 1;
}
diff --git a/grub-core/bus/usb/uhci.c b/grub-core/bus/usb/uhci.c
index e405b33..74de392 100644
--- a/grub-core/bus/usb/uhci.c
+++ b/grub-core/bus/usb/uhci.c
@@ -672,7 +672,7 @@ grub_uhci_cancel_transfer (grub_usb_controller_t dev,
}
static int
-grub_uhci_iterate (int (*hook) (grub_usb_controller_t dev))
+grub_uhci_iterate (grub_usb_controller_iterate_hook_t hook, void *hook_data)
{
struct grub_uhci *u;
struct grub_usb_controller dev;
@@ -680,7 +680,7 @@ grub_uhci_iterate (int (*hook) (grub_usb_controller_t dev))
for (u = uhci; u; u = u->next)
{
dev.data = u;
- if (hook (&dev))
+ if (hook (&dev, hook_data))
return 1;
}
diff --git a/grub-core/bus/usb/usb.c b/grub-core/bus/usb/usb.c
index fb04e65..6fbf134 100644
--- a/grub-core/bus/usb/usb.c
+++ b/grub-core/bus/usb/usb.c
@@ -29,27 +29,28 @@ GRUB_MOD_LICENSE ("GPLv3+");
static grub_usb_controller_dev_t grub_usb_list;
static struct grub_usb_attach_desc *attach_hooks;
-void
-grub_usb_controller_dev_register (grub_usb_controller_dev_t usb)
+/* Iterate over all controllers found by the driver. */
+static int
+grub_usb_controller_dev_register_iter (grub_usb_controller_t dev, void *data)
{
- auto int iterate_hook (grub_usb_controller_t dev);
+ grub_usb_controller_dev_t usb = data;
- /* Iterate over all controllers found by the driver. */
- int iterate_hook (grub_usb_controller_t dev)
- {
- dev->dev = usb;
+ dev->dev = usb;
- /* Enable the ports of the USB Root Hub. */
- grub_usb_root_hub (dev);
+ /* Enable the ports of the USB Root Hub. */
+ grub_usb_root_hub (dev);
- return 0;
- }
+ return 0;
+}
+void
+grub_usb_controller_dev_register (grub_usb_controller_dev_t usb)
+{
usb->next = grub_usb_list;
grub_usb_list = usb;
if (usb->iterate)
- usb->iterate (iterate_hook);
+ usb->iterate (grub_usb_controller_dev_register_iter, usb);
}
void
@@ -66,27 +67,41 @@ grub_usb_controller_dev_unregister (grub_usb_controller_dev_t usb)
}
#if 0
-int
-grub_usb_controller_iterate (int (*hook) (grub_usb_controller_t dev))
+/* Context for grub_usb_controller_iterate. */
+struct grub_usb_controller_iterate_ctx
{
+ grub_usb_controller_iterate_hook_t hook;
+ void *hook_data;
grub_usb_controller_dev_t p;
+};
- auto int iterate_hook (grub_usb_controller_t dev);
+/* Helper for grub_usb_controller_iterate. */
+static int
+grub_usb_controller_iterate_iter (grub_usb_controller_t dev, void *data)
+{
+ struct grub_usb_controller_iterate_ctx *ctx = data;
- int iterate_hook (grub_usb_controller_t dev)
- {
- dev->dev = p;
- if (hook (dev))
- return 1;
- return 0;
- }
+ dev->dev = ctx->p;
+ if (ctx->hook (dev, ctx->hook_data))
+ return 1;
+ return 0;
+}
+
+int
+grub_usb_controller_iterate (grub_usb_controller_iterate_hook_t hook,
+ void *hook_data)
+{
+ struct grub_usb_controller_iterate_ctx ctx = {
+ .hook = hook,
+ .hook_data = hook_data
+ };
/* Iterate over all controller drivers. */
- for (p = grub_usb_list; p; p = p->next)
+ for (ctx.p = grub_usb_list; ctx.p; ctx.p = ctx.p->next)
{
/* Iterate over the busses of the controllers. XXX: Actually, a
hub driver should do this. */
- if (p->iterate (iterate_hook))
+ if (ctx.p->iterate (grub_usb_controller_iterate_iter, &ctx))
return 1;
}
@@ -295,46 +310,47 @@ void grub_usb_device_attach (grub_usb_device_t dev)
}
}
-void
-grub_usb_register_attach_hook_class (struct grub_usb_attach_desc *desc)
+/* Helper for grub_usb_register_attach_hook_class. */
+static int
+grub_usb_register_attach_hook_class_iter (grub_usb_device_t usbdev, void *data)
{
- auto int usb_iterate (grub_usb_device_t dev);
-
- int usb_iterate (grub_usb_device_t usbdev)
- {
- struct grub_usb_desc_device *descdev = &usbdev->descdev;
- int i;
-
- if (descdev->class != 0 || descdev->subclass || descdev->protocol != 0
- || descdev->configcnt == 0)
- return 0;
+ struct grub_usb_attach_desc *desc = data;
+ struct grub_usb_desc_device *descdev = &usbdev->descdev;
+ int i;
- /* XXX: Just check configuration 0 for now. */
- for (i = 0; i < usbdev->config[0].descconf->numif; i++)
- {
- struct grub_usb_desc_if *interf;
+ if (descdev->class != 0 || descdev->subclass || descdev->protocol != 0
+ || descdev->configcnt == 0)
+ return 0;
- interf = usbdev->config[0].interf[i].descif;
+ /* XXX: Just check configuration 0 for now. */
+ for (i = 0; i < usbdev->config[0].descconf->numif; i++)
+ {
+ struct grub_usb_desc_if *interf;
- grub_dprintf ("usb", "iterate: interf=%d, class=%d, subclass=%d, protocol=%d\n",
- i, interf->class, interf->subclass, interf->protocol);
+ interf = usbdev->config[0].interf[i].descif;
- if (usbdev->config[0].interf[i].attached)
- continue;
+ grub_dprintf ("usb", "iterate: interf=%d, class=%d, subclass=%d, protocol=%d\n",
+ i, interf->class, interf->subclass, interf->protocol);
- if (interf->class != desc->class)
- continue;
- if (desc->hook (usbdev, 0, i))
- usbdev->config[0].interf[i].attached = 1;
- }
+ if (usbdev->config[0].interf[i].attached)
+ continue;
- return 0;
+ if (interf->class != desc->class)
+ continue;
+ if (desc->hook (usbdev, 0, i))
+ usbdev->config[0].interf[i].attached = 1;
}
+ return 0;
+}
+
+void
+grub_usb_register_attach_hook_class (struct grub_usb_attach_desc *desc)
+{
desc->next = attach_hooks;
attach_hooks = desc;
- grub_usb_iterate (usb_iterate);
+ grub_usb_iterate (grub_usb_register_attach_hook_class_iter, desc);
}
void
diff --git a/grub-core/bus/usb/usbhub.c b/grub-core/bus/usb/usbhub.c
index 5fc5eba..3927f51 100644
--- a/grub-core/bus/usb/usbhub.c
+++ b/grub-core/bus/usb/usbhub.c
@@ -556,7 +556,7 @@ grub_usb_poll_devices (void)
}
int
-grub_usb_iterate (int (*hook) (grub_usb_device_t dev))
+grub_usb_iterate (grub_usb_iterate_hook_t hook, void *hook_data)
{
int i;
@@ -564,7 +564,7 @@ grub_usb_iterate (int (*hook) (grub_usb_device_t dev))
{
if (grub_usb_devs[i])
{
- if (hook (grub_usb_devs[i]))
+ if (hook (grub_usb_devs[i], hook_data))
return 1;
}
}
diff --git a/grub-core/commands/usbtest.c b/grub-core/commands/usbtest.c
index 7247590..af35b8c 100644
--- a/grub-core/commands/usbtest.c
+++ b/grub-core/commands/usbtest.c
@@ -129,7 +129,7 @@ usb_print_str (const char *description, grub_usb_device_t dev, int idx)
}
static int
-usb_iterate (grub_usb_device_t dev)
+usb_iterate (grub_usb_device_t dev, void *data __attribute__ ((unused)))
{
struct grub_usb_desc_device *descdev;
int i;
@@ -199,7 +199,7 @@ grub_cmd_usbtest (grub_command_t cmd __attribute__ ((unused)),
grub_usb_poll_devices ();
grub_printf ("USB devices:\n\n");
- grub_usb_iterate (usb_iterate);
+ grub_usb_iterate (usb_iterate, NULL);
return 0;
}
diff --git a/include/grub/usb.h b/include/grub/usb.h
index 08d57b2..cefa8b6 100644
--- a/include/grub/usb.h
+++ b/include/grub/usb.h
@@ -50,8 +50,12 @@ typedef enum
GRUB_USB_SPEED_HIGH
} grub_usb_speed_t;
+typedef int (*grub_usb_iterate_hook_t) (grub_usb_device_t dev, void *data);
+typedef int (*grub_usb_controller_iterate_hook_t) (grub_usb_controller_t dev,
+ void *data);
+
/* Call HOOK with each device, until HOOK returns non-zero. */
-int grub_usb_iterate (int (*hook) (grub_usb_device_t dev));
+int grub_usb_iterate (grub_usb_iterate_hook_t hook, void *hook_data);
grub_usb_err_t grub_usb_device_initialize (grub_usb_device_t dev);
@@ -72,7 +76,8 @@ void grub_usb_controller_dev_register (grub_usb_controller_dev_t usb);
void grub_usb_controller_dev_unregister (grub_usb_controller_dev_t usb);
-int grub_usb_controller_iterate (int (*hook) (grub_usb_controller_t dev));
+int grub_usb_controller_iterate (grub_usb_controller_iterate_hook_t hook,
+ void *hook_data);
grub_usb_err_t grub_usb_control_msg (grub_usb_device_t dev, grub_uint8_t reqtype,
@@ -98,7 +103,7 @@ struct grub_usb_controller_dev
/* The device name. */
const char *name;
- int (*iterate) (int (*hook) (grub_usb_controller_t dev));
+ int (*iterate) (grub_usb_controller_iterate_hook_t hook, void *hook_data);
grub_usb_err_t (*setup_transfer) (grub_usb_controller_t dev,
grub_usb_transfer_t transfer);
--
1.8.2.1
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