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    Subject[PATCH] obsolete config in kernel source (DVB_DIBCOM_DEBUG)
    Hi all!

    As part of the VAMOS[0] research project at the University of
    Erlangen we're checking referential integrity between kernel KConfig
    options and in-code Conditional blocks.

    By this we discovered the config Option DVB_DIBCOM_DEBUG,
    which was dropped while removing the dibusb driver in favor of dvb-usb
    in 2005. However it remaind existant at some places of the kernel

    Probably one should be a bit more agressive here as the dprintk
    macro now expands to a do{}while(0) unconditionally so all blocks
    using them can also be dropped to remove in-tree cruft but the patch
    does a first cleanup.

    Please keep me informed of this patch getting confirmed /
    merged so we can keep track of it.


    Christoph Egger

    From 34bc227926b5554a881799fe69ce5323e2042352 Mon Sep 17 00:00:00 2001
    From: Christoph Egger <>
    Date: Fri, 15 Jan 2010 12:49:41 +0100
    Subject: [PATCH 4/4] remove obsolete conditionalizing on DVB_DIBCOM_DEBUG

    The dibusb driver was dropped in 2005 in favour of the generic dvb-usb
    system. However the DEBUG option wasn't removed from all parts of the
    code which is fixed by this patch

    Signed-off-by: Christoph Egger <>
    drivers/media/dvb/frontends/dib3000mb.c | 11 -----------
    drivers/media/dvb/frontends/dib3000mb_priv.h | 5 -----
    2 files changed, 0 insertions(+), 16 deletions(-)

    diff --git a/drivers/media/dvb/frontends/dib3000mb.c b/drivers/media/dvb/frontends/dib3000mb.c
    index ad4c8cf..5fdb6de 100644
    --- a/drivers/media/dvb/frontends/dib3000mb.c
    +++ b/drivers/media/dvb/frontends/dib3000mb.c
    @@ -38,11 +38,6 @@
    #define DRIVER_DESC "DiBcom 3000M-B DVB-T demodulator"
    #define DRIVER_AUTHOR "Patrick Boettcher,"

    -static int debug;
    -module_param(debug, int, 0644);
    -MODULE_PARM_DESC(debug, "set debugging level (1=info,2=xfer,4=setfe,8=getfe (|-able)).");
    #define deb_info(args...) dprintk(0x01,args)
    #define deb_i2c(args...) dprintk(0x02,args)
    #define deb_srch(args...) dprintk(0x04,args)
    @@ -51,12 +46,6 @@ MODULE_PARM_DESC(debug, "set debugging level (1=info,2=xfer,4=setfe,8=getfe (|-a
    #define deb_setf(args...) dprintk(0x04,args)
    #define deb_getf(args...) dprintk(0x08,args)

    -static int debug;
    -module_param(debug, int, 0644);
    -MODULE_PARM_DESC(debug, "set debugging level (1=info,2=i2c,4=srch (|-able)).");
    static int dib3000_read_reg(struct dib3000_state *state, u16 reg)
    u8 wb[] = { ((reg >> 8) | 0x80) & 0xff, reg & 0xff };
    diff --git a/drivers/media/dvb/frontends/dib3000mb_priv.h b/drivers/media/dvb/frontends/dib3000mb_priv.h
    index 1a12747..806f5b0 100644
    --- a/drivers/media/dvb/frontends/dib3000mb_priv.h
    +++ b/drivers/media/dvb/frontends/dib3000mb_priv.h
    @@ -37,12 +37,7 @@

    /* debug */

    -#define dprintk(level,args...) \
    - do { if ((debug & level)) { printk(args); } } while (0)
    #define dprintk(args...) do { } while (0)

    /* mask for enabling a specific pid for the pid_filter */
    #define DIB3000_ACTIVATE_PID_FILTERING (0x2000)
     \ /
      Last update: 2010-01-15 13:11    [W:0.064 / U:113.236 seconds]
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