dahdi-linux: backport changes needed for kernel 3.19 and 4.0

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

libs/dahdi-linux/patches/004-backport-struct-file_f_dentry-macro-was-removed.patch

@@ -0,0 +1,35 @@
+From 4d86a8f3f690ee9bb9429e17cc03856c6c2dc760 Mon Sep 17 00:00:00 2001
+From: Shaun Ruffell <sruffell@digium.com>
+Date: Mon, 22 Dec 2014 11:21:28 -0600
+Subject: [PATCH] dahdi: struct file.f_dentry macro was removed in kernel 3.19
+
+This is necessary to build against kernel version 3.19 since commit
+(78d28e651f97866d608d9b41 "kill f_dentry macro") [1]
+
+[1] https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=78d28e651
+
+Signed-off-by: Shaun Ruffell <sruffell@digium.com>
+Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>
+---
+ drivers/dahdi/dahdi-base.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/drivers/dahdi/dahdi-base.c b/drivers/dahdi/dahdi-base.c
+index 0892734..f2caad0 100644
+--- a/drivers/dahdi/dahdi-base.c
++++ b/drivers/dahdi/dahdi-base.c
+@@ -98,7 +98,11 @@
+ #define chan_to_netdev(h) ((h)->hdlcnetdev->netdev)
+ 
+ /* macro-oni for determining a unit (channel) number */
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20)
+ #define	UNIT(file) MINOR(file->f_dentry->d_inode->i_rdev)
++#else
++#define	UNIT(file) MINOR(file->f_path.dentry->d_inode->i_rdev)
++#endif
+ 
+ EXPORT_SYMBOL(dahdi_transcode_fops);
+ EXPORT_SYMBOL(dahdi_init_tone_state);
+-- 
+2.3.4
+

libs/dahdi-linux/patches/005-backport-fix-void-value-not-ignored.patch

@@ -0,0 +1,45 @@
+From 1cc0ad510acd404e63923ed3062b9302d53580da Mon Sep 17 00:00:00 2001
+From: Shaun Ruffell <sruffell@digium.com>
+Date: Mon, 2 Mar 2015 09:00:13 -0600
+Subject: [PATCH] dahdi: Fix "void value not ignored..." error when compiling
+ against kernel 4.0.
+
+With commit (d1f1052c52 "device: Change dev_<level> logging functions to return
+void") [1] in kernel version 4.0, DAHDI would fail to compile with the following
+error:
+
+  .../drivers/dahdi/dahdi-base.c:7150:2: error: void value not ignored as it ought to be
+    dahdi_dev_dbg(ASSIGN, span_device(span),
+    ^
+
+Now ignore the dev_printk return value.
+
+[1] https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d1f1052c5204524
+
+Signed-off-by: Shaun Ruffell <sruffell@digium.com>
+Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
+---
+ include/dahdi/kernel.h | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/include/dahdi/kernel.h b/include/dahdi/kernel.h
+index 365801d..54c415e 100644
+--- a/include/dahdi/kernel.h
++++ b/include/dahdi/kernel.h
+@@ -1665,9 +1665,11 @@ struct mutex {
+ 				chan_printk(DEBUG, "-" #bits, chan, \
+ 					"%s: " fmt, __func__, ## __VA_ARGS__)))
+ #define dahdi_dev_dbg(bits, dev, fmt, ...)         \
+-			((void)((debug & (DAHDI_DBG_ ## bits)) && \
++		do { if (debug & (DAHDI_DBG_ ## bits)) { \
+ 			dev_printk(KERN_DEBUG, dev, \
+-			"DBG-%s(%s): " fmt, #bits, __func__, ## __VA_ARGS__)))
++			"DBG-%s(%s): " fmt, #bits, __func__, ## __VA_ARGS__); \
++		} } while (0)
++
+ #endif /* DAHDI_PRINK_MACROS_USE_debug */
+ 
+ #endif /* _DAHDI_KERNEL_H */
+-- 
+2.3.4
+

libs/dahdi-linux/patches/006-backport-strnicmp-strncasecmp.patch

@@ -0,0 +1,56 @@
+From 1559db9d1ae03780788788c07334ca54cdd1253a Mon Sep 17 00:00:00 2001
+From: Shaun Ruffell <sruffell@digium.com>
+Date: Mon, 2 Mar 2015 09:00:14 -0600
+Subject: [PATCH] dahdi: strnicmp() -> strncasecmp()
+
+With commit (af3cd13501 "lib/string.c: remove strnicmp()") [1] dahdi can no
+longer call strnicmp directly. strncasecmp was added into lib/string.c in kernel
+version 2.6.22 so we'll map calls to strncasecmp to strnicmp for any kernel
+before that.
+
+This is necessary to compile against kernels >= 4.0.
+
+[1] https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=af3cd13501
+
+Signed-off-by: Shaun Ruffell <sruffell@digium.com>
+Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>
+---
+ drivers/dahdi/xpp/card_pri.c | 6 +++---
+ include/dahdi/kernel.h       | 2 ++
+ 2 files changed, 5 insertions(+), 3 deletions(-)
+
+diff --git a/drivers/dahdi/xpp/card_pri.c b/drivers/dahdi/xpp/card_pri.c
+index 29b457b..edc8bd2 100644
+--- a/drivers/dahdi/xpp/card_pri.c
++++ b/drivers/dahdi/xpp/card_pri.c
+@@ -2399,11 +2399,11 @@ static DEVICE_ATTR_WRITER(pri_protocol_store, dev, buf, count)
+ 			buf, i);
+ 		return -EINVAL;
+ 	}
+-	if (strnicmp(buf, "E1", 2) == 0)
++	if (strncasecmp(buf, "E1", 2) == 0)
+ 		new_protocol = PRI_PROTO_E1;
+-	else if (strnicmp(buf, "T1", 2) == 0)
++	else if (strncasecmp(buf, "T1", 2) == 0)
+ 		new_protocol = PRI_PROTO_T1;
+-	else if (strnicmp(buf, "J1", 2) == 0)
++	else if (strncasecmp(buf, "J1", 2) == 0)
+ 		new_protocol = PRI_PROTO_J1;
+ 	else {
+ 		XPD_NOTICE(xpd,
+diff --git a/include/dahdi/kernel.h b/include/dahdi/kernel.h
+index 54c415e..90d48a3 100644
+--- a/include/dahdi/kernel.h
++++ b/include/dahdi/kernel.h
+@@ -1502,6 +1502,8 @@ void dahdi_pci_disable_link_state(struct pci_dev *pdev, int state);
+ #define list_first_entry(ptr, type, member) \
+ 	list_entry((ptr)->next, type, member)
+ 
++#define strncasecmp strnicmp
++
+ #ifndef __packed
+ #define __packed  __attribute__((packed))
+ #endif 
+-- 
+2.3.4
+