mac80211: rt2x00: backport accepted and pending patches from upstream

backport from wireless-drivers-next, replacing some existing patches in
our tree (marked with '=' are those which were already present):
 f483039cf51a rt2x00: use simple_read_from_buffer()
=5c656c71b1bf rt2800: move usb specific txdone/txstatus routines to rt2800lib
=0b0d556e0ebb rt2800mmio: use txdone/txstatus routines from lib
=5022efb50f62 rt2x00: do not check for txstatus timeout every time on tasklet
=adf26a356f13 rt2x00: use different txstatus timeouts when flushing
=0240564430c0 rt2800: flush and txstatus rework for rt2800mmio
 6eba8fd22352 rt2x00: rt2400pci: mark expected switch fall-through
 10bb92217747 rt2x00: rt2500pci: mark expected switch fall-through
 916e6bbcfcff rt2x00: rt2800lib: mark expected switch fall-throughs
 641dd8068ecb rt2x00: rt61pci: mark expected switch fall-through
 750afb08ca71 cross-tree: phase out dma_zalloc_coherent()
=c2e28ef7711f rt2x00: reduce tx power to nominal level on RT6352
 a4296994eb80 rt2x00: Work around a firmware bug with shared keys
 2587791d5758 rt2x00: no need to check return value of debugfs_create functions

pending on linux-wireless:
 rt2x00: remove unneeded check
 rt2x00: remove confusing AGC register
 rt2800: enable TX_PIN_CFG_LNA_PE_ bits per band
 rt2800: enable TX_PIN_CFG_RFRX_EN only for MT7620
 rt2800: comment and simplify AGC init for RT6352
 rt2x00: do not print error when queue is full
 rt2800: partially restore old mmio txstatus behaviour
 rt2800: new flush implementation for SoC devices
 rt2800: move txstatus pending routine
 rt2800mmio: fetch tx status changes
 rt2800mmio: use timer and work for handling tx statuses timeouts
 rt2x00: remove last_nostatus_check
 rt2x00: remove not used entry field
 rt2x00mmio: remove legacy comment

While at it also rename some existing patches now that there are
separate folders with patches for each driver to make things a bit
nicer to handle.

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

1 files changed, 59 insertions, 0 deletions

diff --git a/package/kernel/mac80211/patches/rt2x00/001-rt2x00-use-simple_read_from_buffer.patch b/package/kernel/mac80211/patches/rt2x00/001-rt2x00-use-simple_read_from_buffer.patch
new file mode 100644
index 0000000000..1319cc244c
--- /dev/null
+++ b/package/kernel/mac80211/patches/rt2x00/001-rt2x00-use-simple_read_from_buffer.patch
@@ -0,0 +1,59 @@
+From f483039cf51acf30494cd754194562c22cf98764 Mon Sep 17 00:00:00 2001
+From: Dan Carpenter <dan.carpenter@oracle.com>
+Date: Wed, 22 Aug 2018 13:41:26 +0300
+Subject: [PATCH 01/28] rt2x00: use simple_read_from_buffer()
+
+The problem with this copy_to_user() calls is that they don't ensure
+that "size" is less than the "length" which the user provided.
+
+Obviously, this is debugfs and "size" is normally going to be very small
+so it probably doesn't matter, but this is the correct thing to do.
+
+Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
+Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
+Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
+---
+ .../net/wireless/ralink/rt2x00/rt2x00debug.c   | 18 +++---------------
+ 1 file changed, 3 insertions(+), 15 deletions(-)
+
+--- a/drivers/net/wireless/ralink/rt2x00/rt2x00debug.c
++++ b/drivers/net/wireless/ralink/rt2x00/rt2x00debug.c
+@@ -464,11 +464,7 @@ static ssize_t rt2x00debug_read_##__name
+ 								\
+ 	size = sprintf(line, __format, value);			\
+ 								\
+-	if (copy_to_user(buf, line, size))			\
+-		return -EFAULT;					\
+-								\
+-	*offset += size;					\
+-	return size;						\
++	return simple_read_from_buffer(buf, length, offset, line, size); \
+ }
+ 
+ #define RT2X00DEBUGFS_OPS_WRITE(__name, __type)			\
+@@ -545,11 +541,7 @@ static ssize_t rt2x00debug_read_dev_flag
+ 
+ 	size = sprintf(line, "0x%.8x\n", (unsigned int)intf->rt2x00dev->flags);
+ 
+-	if (copy_to_user(buf, line, size))
+-		return -EFAULT;
+-
+-	*offset += size;
+-	return size;
++	return simple_read_from_buffer(buf, length, offset, line, size);
+ }
+ 
+ static const struct file_operations rt2x00debug_fop_dev_flags = {
+@@ -574,11 +566,7 @@ static ssize_t rt2x00debug_read_cap_flag
+ 
+ 	size = sprintf(line, "0x%.8x\n", (unsigned int)intf->rt2x00dev->cap_flags);
+ 
+-	if (copy_to_user(buf, line, size))
+-		return -EFAULT;
+-
+-	*offset += size;
+-	return size;
++	return simple_read_from_buffer(buf, length, offset, line, size);
+ }
+ 
+ static const struct file_operations rt2x00debug_fop_cap_flags = {