Author: johalun
Date: Sun May 19 15:44:21 2019
New Revision: 347973
URL: https://svnweb.freebsd.org/changeset/base/347973
Log:
LinuxKPI: Finalize move of lindebugfs from ports to base.
The source file was moved to base earlier and also improved upon,
but never compiled in. This patch will:
- Make a module in sys/modules
- Make lindebugfs depend on linuxkpi (for seq_file)
- Check if read/write functions are set before calling, DRM drivers
don't always set both of them.
Reviewed by: hps
Approved by: imp (mentor), hps
MFC after: 1 week
Added:
head/sys/modules/lindebugfs/
head/sys/modules/lindebugfs/Makefile (contents, props changed)
Modified:
head/sys/compat/lindebugfs/lindebugfs.c
head/sys/modules/Makefile
Modified: head/sys/compat/lindebugfs/lindebugfs.c
==============================================================================
--- head/sys/compat/lindebugfs/lindebugfs.c Sun May 19 15:07:14 2019
(r347972)
+++ head/sys/compat/lindebugfs/lindebugfs.c Sun May 19 15:44:21 2019
(r347973)
@@ -143,10 +143,17 @@ debugfs_fill(PFS_FILL_ARGS)
}
sf = lf.private_data;
sf->buf = sb;
- if (uio->uio_rw == UIO_READ)
- rc = d->dm_fops->read(&lf, NULL, len, &off);
- else
- rc = d->dm_fops->write(&lf, buf, len, &off);
+ if (uio->uio_rw == UIO_READ) {
+ if (d->dm_fops->read)
+ rc = d->dm_fops->read(&lf, NULL, len, &off);
+ else
+ rc = ENODEV;
+ } else {
+ if (d->dm_fops->write)
+ rc = d->dm_fops->write(&lf, buf, len, &off);
+ else
+ rc = ENODEV;
+ }
if (d->dm_fops->release)
d->dm_fops->release(&vn, &lf);
else
@@ -307,3 +314,4 @@ PSEUDOFS(debugfs, 1, PR_ALLOW_MOUNT_LINSYSFS);
#else
PSEUDOFS(debugfs, 1, VFCF_JAIL);
#endif
+MODULE_DEPEND(lindebugfs, linuxkpi, 1, 1, 1);
Modified: head/sys/modules/Makefile
==============================================================================
--- head/sys/modules/Makefile Sun May 19 15:07:14 2019 (r347972)
+++ head/sys/modules/Makefile Sun May 19 15:44:21 2019 (r347973)
@@ -205,6 +205,7 @@ SUBDIR= \
libalias \
libiconv \
libmchain \
+ lindebugfs \
${_linux} \
${_linux_common} \
${_linux64} \
Added: head/sys/modules/lindebugfs/Makefile
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/modules/lindebugfs/Makefile Sun May 19 15:44:21 2019
(r347973)
@@ -0,0 +1,12 @@
+# $FreeBSD$
+
+.PATH: ${SRCTOP}/sys/compat/lindebugfs
+
+KMOD= lindebugfs
+SRCS= vnode_if.h \
+ device_if.h bus_if.h pci_if.h \
+ lindebugfs.c
+
+CFLAGS+= -I${SRCTOP}/sys/compat/linuxkpi/common/include
+
+.include <bsd.kmod.mk>
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