[media] samples: v4l: from Documentation to samples directory

With the new autoksyms support, we can run into a situation where
the v4l pci skeleton module is the only one using some exported
symbols that get dropped because they are never referenced by
the kernel otherwise, causing a build problem:

ERROR: "vb2_dma_contig_memops" [Documentation/video4linux/v4l2-pci-skeleton.ko] undefined!
ERROR: "vb2_dma_contig_init_ctx_attrs" [Documentation/video4linux/v4l2-pci-skeleton.ko] undefined!
ERROR: "v4l2_match_dv_timings" [Documentation/video4linux/v4l2-pci-skeleton.ko] undefined!
ERROR: "v4l2_find_dv_timings_cap" [Documentation/video4linux/v4l2-pci-skeleton.ko] undefined!
ERROR: "v4l2_valid_dv_timings" [Documentation/video4linux/v4l2-pci-skeleton.ko] undefined!
ERROR: "v4l2_enum_dv_timings_cap" [Documentation/video4linux/v4l2-pci-skeleton.ko] undefined!
ERROR: "vb2_dma_contig_cleanup_ctx" [Documentation/video4linux/v4l2-pci-skeleton.ko] undefined!

Specifically, we do look in the samples directory for users of
symbols, but not the Documentation directory.

This solves the build problem by moving the connector sample into
the same directory as the other samples.

Fixes: 23121ca2b56b ("kbuild: create/adjust generated/autoksyms.h")

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/Documentation/Makefile b/Documentation/Makefile
index 1207d79..f3b04d2 100644 (file)
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -1,4 +1,3 @@
 subdir-y := accounting auxdisplay blackfin connector \
        filesystems filesystems ia64 laptops mic misc-devices \
-       networking pcmcia prctl ptp timers vDSO video4linux \
-       watchdog
+       networking pcmcia prctl ptp timers vDSO watchdog

diff --git a/Documentation/video4linux/v4l2-framework.txt b/Documentation/video4linux/v4l2-framework.txt
index fa41608..cbefc79 100644 (file)
--- a/Documentation/video4linux/v4l2-framework.txt
+++ b/Documentation/video4linux/v4l2-framework.txt
@@ -35,7 +35,7 @@ need and this same framework should make it much easier to refactor
 common code into utility functions shared by all drivers.
 
 A good example to look at as a reference is the v4l2-pci-skeleton.c
-source that is available in this directory. It is a skeleton driver for
+source that is available in samples/v4l/. It is a skeleton driver for
 a PCI capture card, and demonstrates how to use the V4L2 driver
 framework. It can be used as a template for real PCI video capture driver.
 

diff --git a/samples/Makefile b/samples/Makefile
index 48001d7..ad440d6 100644 (file)
--- a/samples/Makefile
+++ b/samples/Makefile
@@ -2,4 +2,4 @@
 
 obj-$(CONFIG_SAMPLES)  += kobject/ kprobes/ trace_events/ livepatch/ \
                           hw_breakpoint/ kfifo/ kdb/ hidraw/ rpmsg/ seccomp/ \
-                          configfs/
+                          configfs/ v4l/

diff --git a/Documentation/video4linux/Makefile b/samples/v4l/Makefile
similarity index 100%
rename from Documentation/video4linux/Makefile
rename to samples/v4l/Makefile

diff --git a/Documentation/video4linux/v4l2-pci-skeleton.c b/samples/v4l/v4l2-pci-skeleton.c
similarity index 100%
rename from Documentation/video4linux/v4l2-pci-skeleton.c
rename to samples/v4l/v4l2-pci-skeleton.c