unimore/kernel-hacking-2024-linux-steffo
unimore/kernel-hacking-2024-linux-steffo
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Simple warning fix for module sections. If too late to pull, no big deal.

Browse source 
Cheers,
 Rusty.
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mergetag object b3087e48ce
 type commit
 tag virtio-next-for-linus
 tagger Rusty Russell <rusty@rustcorp.com.au> 1372639977 +0930
 
 Was away, but it's all trivial and been sitting in linux-next.  So if you don't
 pull, no electrons will be harmed.
 
 Thanks,
 Rusty.
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Merge tags 'modules-next-for-linus' and 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

Pull trivial module and virtio fixes from Rusty Russell.

Apparently these were meant for 3.10, but came in after the release.

* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  modpost.c: Add .text.unlikely to TEXT_SECTIONS

* tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  virtio: remove virtqueue_add_buf().
  lguest: rename i386_head.S
  virtio_blk: Add missing 'static' qualifiers
  virtio: console: Add emergency writeonly register to config space
  virtio_pci: better macro exported in uapi
This commit is contained in:
Linus Torvalds 2013-07-03 13:09:06 -07:00
commit baa6f82093
8 changed files with 12 additions and 45 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
arch/x86/lguest/Makefile
View file

@ -1,2 +1,2 @@
obj-y := i386_head.o boot.o
obj-y := head_32.o boot.o
CFLAGS_boot.o := $(call cc-option, -fno-stack-protector)

0
arch/x86/lguest/i386_head.S → arch/x86/lguest/head_32.S
View file

2
drivers/block/virtio_blk.c
View file

@ -20,7 +20,7 @@ module_param(use_bio, bool, S_IRUGO);
static int major;
static DEFINE_IDA(vd_index_ida);
struct workqueue_struct *virtblk_wq;
static struct workqueue_struct *virtblk_wq;
struct virtio_blk
{

37
drivers/virtio/virtio_ring.c
View file

@ -295,37 +295,6 @@ static inline int virtqueue_add(struct virtqueue *_vq,
return 0;
}
/**
* virtqueue_add_buf - expose buffer to other end
* @vq: the struct virtqueue we're talking about.
* @sg: the description of the buffer(s).
* @out_num: the number of sg readable by other side
* @in_num: the number of sg which are writable (after readable ones)
* @data: the token identifying the buffer.
* @gfp: how to do memory allocations (if necessary).
*
* Caller must ensure we don't call this with other virtqueue operations
* at the same time (except where noted).
*
* Returns zero or a negative error (ie. ENOSPC, ENOMEM).
*/
int virtqueue_add_buf(struct virtqueue *_vq,
struct scatterlist sg[],
unsigned int out,
unsigned int in,
void *data,
gfp_t gfp)
{
struct scatterlist *sgs[2];
sgs[0] = sg;
sgs[1] = sg + out;
return virtqueue_add(_vq, sgs, sg_next_arr,
out, in, out ? 1 : 0, in ? 1 : 0, data, gfp);
}
EXPORT_SYMBOL_GPL(virtqueue_add_buf);
/**
* virtqueue_add_sgs - expose buffers to other end
* @vq: the struct virtqueue we're talking about.
@ -473,7 +442,7 @@ EXPORT_SYMBOL_GPL(virtqueue_notify);
* virtqueue_kick - update after add_buf
* @vq: the struct virtqueue
*
* After one or more virtqueue_add_buf calls, invoke this to kick
* After one or more virtqueue_add_* calls, invoke this to kick
* the other side.
*
* Caller must ensure we don't call this with other virtqueue
@ -530,7 +499,7 @@ static inline bool more_used(const struct vring_virtqueue *vq)
* operations at the same time (except where noted).
*
* Returns NULL if there are no used buffers, or the "data" token
* handed to virtqueue_add_buf().
* handed to virtqueue_add_*().
*/
void *virtqueue_get_buf(struct virtqueue *_vq, unsigned int *len)
{
@ -685,7 +654,7 @@ EXPORT_SYMBOL_GPL(virtqueue_enable_cb_delayed);
* virtqueue_detach_unused_buf - detach first unused buffer
* @vq: the struct virtqueue we're talking about.
*
* Returns NULL or the "data" token handed to virtqueue_add_buf().
* Returns NULL or the "data" token handed to virtqueue_add_*().
* This is not valid on an active queue; it is useful only for device
* shutdown.
*/

7
include/linux/virtio.h
View file

@ -34,13 +34,6 @@ struct virtqueue {
void *priv;
};
int virtqueue_add_buf(struct virtqueue *vq,
struct scatterlist sg[],
unsigned int out_num,
unsigned int in_num,
void *data,
gfp_t gfp);
int virtqueue_add_outbuf(struct virtqueue *vq,
struct scatterlist sg[], unsigned int num,
void *data,

3
include/uapi/linux/virtio_console.h
View file

@ -38,6 +38,7 @@
/* Feature bits */
#define VIRTIO_CONSOLE_F_SIZE 0 /* Does host provide console size? */
#define VIRTIO_CONSOLE_F_MULTIPORT 1 /* Does host provide multiple ports? */
#define VIRTIO_CONSOLE_F_EMERG_WRITE 2 /* Does host support emergency write? */
#define VIRTIO_CONSOLE_BAD_ID (~(__u32)0)
@ -48,6 +49,8 @@ struct virtio_console_config {
__u16 rows;
/* max. number of ports this device can hold */
__u32 max_nr_ports;
/* emergency write register */
__u32 emerg_wr;
} __attribute__((packed));
/*

4
include/uapi/linux/virtio_pci.h
View file

@ -80,7 +80,9 @@
/* The remaining space is defined by each driver as the per-driver
* configuration space */
#define VIRTIO_PCI_CONFIG(dev) ((dev)->msix_enabled ? 24 : 20)
#define VIRTIO_PCI_CONFIG_OFF(msix_enabled) ((msix_enabled) ? 24 : 20)
/* Deprecated: please use VIRTIO_PCI_CONFIG_OFF instead */
#define VIRTIO_PCI_CONFIG(dev) VIRTIO_PCI_CONFIG_OFF((dev)->msix_enabled)
/* Virtio ABI version, this must match exactly */
#define VIRTIO_PCI_ABI_VERSION 0

2
scripts/mod/modpost.c
View file

@ -884,7 +884,7 @@ static void check_section(const char *modname, struct elf_info *elf,
#define ALL_EXIT_SECTIONS EXIT_SECTIONS, ALL_XXXEXIT_SECTIONS
#define DATA_SECTIONS ".data$", ".data.rel$"
#define TEXT_SECTIONS ".text$"
#define TEXT_SECTIONS ".text$", ".text.unlikely$"
#define INIT_SECTIONS ".init.*"
#define CPU_INIT_SECTIONS ".cpuinit.*"