Eric Lee / smarc-fsl-linux-kernel

13 Aug, 2008

1 commit

  • 3794f3e81   docsrc: build Documentation/ sources ... Browse Code »

    Currently source files in the Documentation/ sub-dir can easily bit-rot
    since they are not generally buildable, either because they are hidden in
    text files or because there are no Makefile rules for them. This needs to
    be fixed so that the source files remain usable and good examples of code
    instead of bad examples.

    Add the ability to build source files that are in the Documentation/ dir.
    Add to Kconfig as "BUILD_DOCSRC" config symbol.

    Use "CONFIG_BUILD_DOCSRC=1 make ..." to build objects from the
    Documentation/ sources. Or enable BUILD_DOCSRC in the *config system.
    However, this symbol depends on HEADERS_CHECK since the header files need
    to be installed (for userspace builds).

    Built (using cross-tools) for x86-64, i386, alpha, ia64, sparc32,
    sparc64, powerpc, sh, m68k, & mips.

    Signed-off-by: Randy Dunlap
    Reviewed-by: Sam Ravnborg
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Randy Dunlap
     

20 Jul, 2007

1 commit

  • dd00cc486   some kmalloc/memset ->kzalloc (tree wide) ... Browse Code »

    Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc).

    Here is a short excerpt of the semantic patch performing
    this transformation:

    @@
    type T2;
    expression x;
    identifier f,fld;
    expression E;
    expression E1,E2;
    expression e1,e2,e3,y;
    statement S;
    @@

    x =
    - kmalloc
    + kzalloc
    (E1,E2)
    ... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\)
    - memset((T2)x,0,E1);

    @@
    expression E1,E2,E3;
    @@

    - kzalloc(E1 * E2,E3)
    + kcalloc(E1,E2,E3)

    [akpm@linux-foundation.org: get kcalloc args the right way around]
    Signed-off-by: Yoann Padioleau
    Cc: Richard Henderson
    Cc: Ivan Kokshaysky
    Acked-by: Russell King
    Cc: Bryan Wu
    Acked-by: Jiri Slaby
    Cc: Dave Airlie
    Acked-by: Roland Dreier
    Cc: Jiri Kosina
    Acked-by: Dmitry Torokhov
    Cc: Benjamin Herrenschmidt
    Acked-by: Mauro Carvalho Chehab
    Acked-by: Pierre Ossman
    Cc: Jeff Garzik
    Cc: "David S. Miller"
    Acked-by: Greg KH
    Cc: James Bottomley
    Cc: "Antonino A. Daplas"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Yoann Padioleau
     

27 Aug, 2006

1 commit

21 Mar, 2006

1 commit

09 Nov, 2005

1 commit

14 Oct, 2005

1 commit

12 Sep, 2005

1 commit

  • 7672d0b54   [NET]: Add netlink connector. ... Browse Code »

    Kernel connector - new userspace kernel space easy to use
    communication module which implements easy to use bidirectional
    message bus using netlink as it's backend. Connector was created to
    eliminate complex skb handling both in send and receive message bus
    direction.

    Connector driver adds possibility to connect various agents using as
    one of it's backends netlink based network. One must register
    callback and identifier. When driver receives special netlink message
    with appropriate identifier, appropriate callback will be called.

    From the userspace point of view it's quite straightforward:

    socket();
    bind();
    send();
    recv();

    But if kernelspace want to use full power of such connections, driver
    writer must create special sockets, must know about struct sk_buff
    handling... Connector allows any kernelspace agents to use netlink
    based networking for inter-process communication in a significantly
    easier way:

    int cn_add_callback(struct cb_id *id, char *name, void (*callback) (void *));
    void cn_netlink_send(struct cn_msg *msg, u32 __groups, int gfp_mask);

    struct cb_id
    {
    __u32 idx;
    __u32 val;
    };

    idx and val are unique identifiers which must be registered in
    connector.h for in-kernel usage. void (*callback) (void *) - is a
    callback function which will be called when message with above idx.val
    will be received by connector core.

    Using connector completely hides low-level transport layer from it's
    users.

    Connector uses new netlink ability to have many groups in one socket.

    [ Incorporating many cleanups and fixes by myself and
    Andrew Morton -DaveM ]

    Signed-off-by: Evgeniy Polyakov
    Signed-off-by: Andrew Morton
    Signed-off-by: David S. Miller

    Evgeniy Polyakov