Created CPPLINT exceptions for device drivers.

devices/CPPLINT.cfg

@@ -7,3 +7,13 @@
 # top-level CPPLINT.cfg, so it only relaxes tab checking for the
 # driver tree -- master code elsewhere continues to be checked.
 filter=-whitespace/tab
+
+# A few older native drivers (8139too, e100, and the pre-devices/r8169/
+# legacy r8169 versions) still live directly in this directory instead
+# of their own subdirectory, side by side with hand-written EtherCAT
+# glue code (ecdev.h, generic.c). Per-driver style exceptions (see e.g.
+# devices/igb/CPPLINT.cfg) can only be scoped per-directory, so they
+# can't be given to just these files here without also loosening the
+# checks for the hand-written code. Exempt them by name instead; the
+# hand-written files keep full linting.
+exclude_files=^(8139too|e100|r8169)-.*\.[ch]$

devices/e1000/CPPLINT.cfg

@@ -0,0 +1,18 @@
+# The e1000 driver is a lightly patched copy of the in-kernel e1000
+# driver (see update.sh), kept close to upstream formatting so future
+# updates can be diffed/merged against new kernel sources with minimal
+# noise. The checks below mostly fire on plain kernel coding-style
+# idioms (long lines, blank lines at block boundaries, spacing around
+# operators/commas, C-style casts, empty ";"-only statements, trailing
+# whitespace) that have nothing to do with the EtherCAT integration
+# bits; reformatting the copied parts to satisfy them would defeat the
+# purpose of keeping the diff small. This filter is added on top of
+# (not instead of) devices/CPPLINT.cfg and the top-level CPPLINT.cfg.
+filter=-build/include
+filter=-runtime/casting
+filter=-whitespace/blank_line
+filter=-whitespace/comma
+filter=-whitespace/end_of_line
+filter=-whitespace/line_length
+filter=-whitespace/operators
+filter=-whitespace/semicolon

devices/e1000e/CPPLINT.cfg

@@ -0,0 +1,15 @@
+# The e1000e driver is a lightly patched copy of the in-kernel e1000e
+# driver (see update.sh), kept close to upstream formatting so future
+# updates can be diffed/merged against new kernel sources with minimal
+# noise. The checks below mostly fire on plain kernel coding-style
+# idioms (long lines, blank lines at block boundaries, C-style casts,
+# empty ";"-only statements) that have nothing to do with the EtherCAT
+# integration bits; reformatting the copied parts to satisfy them would
+# defeat the purpose of keeping the diff small. This filter is added on
+# top of (not instead of) devices/CPPLINT.cfg and the top-level
+# CPPLINT.cfg.
+filter=-build/include
+filter=-runtime/casting
+filter=-whitespace/blank_line
+filter=-whitespace/line_length
+filter=-whitespace/semicolon

devices/genet/CPPLINT.cfg

@@ -0,0 +1,16 @@
+# The genet driver is a lightly patched copy of the in-kernel bcmgenet
+# driver (see update.sh), kept close to upstream formatting so future
+# updates can be diffed/merged against new kernel sources with minimal
+# noise. The checks below mostly fire on plain kernel coding-style
+# idioms (long lines, blank lines at block boundaries, trailing
+# whitespace) or on the fact that the copied upstream header unimac.h
+# carries no copyright notice of its own; none of this has anything to
+# do with the EtherCAT integration bits, and reformatting the copied
+# parts to satisfy them would defeat the purpose of keeping the diff
+# small. This filter is added on top of (not instead of) devices/
+# CPPLINT.cfg and the top-level CPPLINT.cfg.
+filter=-build/include
+filter=-legal/copyright
+filter=-whitespace/blank_line
+filter=-whitespace/end_of_line
+filter=-whitespace/line_length

devices/igb/CPPLINT.cfg

@@ -0,0 +1,16 @@
+# The igb driver is a lightly patched copy of the in-kernel igb driver
+# (see update.sh), kept close to upstream formatting so future updates
+# can be diffed/merged against new kernel sources with minimal noise.
+# The checks below mostly fire on plain kernel coding-style idioms
+# (long lines, blank lines at block boundaries, C-style casts, empty
+# ";"-only statements, multi-line string literals) that have nothing to
+# do with the EtherCAT integration bits; reformatting the copied parts
+# to satisfy them would defeat the purpose of keeping the diff small.
+# This filter is added on top of (not instead of) devices/CPPLINT.cfg
+# and the top-level CPPLINT.cfg.
+filter=-build/include
+filter=-readability/multiline_string
+filter=-runtime/casting
+filter=-whitespace/blank_line
+filter=-whitespace/line_length
+filter=-whitespace/semicolon

devices/igc/CPPLINT.cfg

@@ -0,0 +1,16 @@
+# The igc driver is a lightly patched copy of the in-kernel igc driver
+# (see update.sh), kept close to upstream formatting so future updates
+# can be diffed/merged against new kernel sources with minimal noise.
+# The checks below mostly fire on plain kernel coding-style idioms
+# (long lines, blank lines at block boundaries, C-style casts, missing
+# space after a comma, empty ";"-only statements) that have nothing to
+# do with the EtherCAT integration bits; reformatting the copied parts
+# to satisfy them would defeat the purpose of keeping the diff small.
+# This filter is added on top of (not instead of) devices/CPPLINT.cfg
+# and the top-level CPPLINT.cfg.
+filter=-build/include
+filter=-runtime/casting
+filter=-whitespace/blank_line
+filter=-whitespace/comma
+filter=-whitespace/line_length
+filter=-whitespace/semicolon

devices/macb/CPPLINT.cfg

@@ -0,0 +1,15 @@
+# The macb driver is a lightly patched copy of the in-kernel macb/GEM
+# driver (see update.sh), kept close to upstream formatting so future
+# updates can be diffed/merged against new kernel sources with minimal
+# noise. The checks below mostly fire on plain kernel coding-style
+# idioms (long lines, blank lines at block boundaries, missing space
+# after a comma, an upstream header that already includes
+# linux/inetdevice.h twice) that have nothing to do with the EtherCAT
+# integration bits; reformatting the copied parts to satisfy them would
+# defeat the purpose of keeping the diff small. This filter is added on
+# top of (not instead of) devices/CPPLINT.cfg and the top-level
+# CPPLINT.cfg.
+filter=-build/include
+filter=-whitespace/blank_line
+filter=-whitespace/comma
+filter=-whitespace/line_length

devices/r8169/CPPLINT.cfg

@@ -0,0 +1,12 @@
+# The r8169 driver is a lightly patched copy of the in-kernel r8169
+# driver (see update.sh), kept close to upstream formatting so future
+# updates can be diffed/merged against new kernel sources with minimal
+# noise. The checks below mostly fire on plain kernel coding-style
+# idioms (long lines, blank lines at block boundaries) that have
+# nothing to do with the EtherCAT integration bits; reformatting the
+# copied parts to satisfy them would defeat the purpose of keeping the
+# diff small. This filter is added on top of (not instead of) devices/
+# CPPLINT.cfg and the top-level CPPLINT.cfg.
+filter=-build/include
+filter=-whitespace/blank_line
+filter=-whitespace/line_length

devices/stmmac/CPPLINT.cfg

@@ -0,0 +1,17 @@
+# The stmmac driver is a lightly patched copy of the in-kernel stmmac
+# driver (see update.sh), kept close to upstream formatting so future
+# updates can be diffed/merged against new kernel sources with minimal
+# noise. The checks below mostly fire on plain kernel coding-style
+# idioms (long lines, blank lines at block boundaries, GCC-style
+# variable-length arrays sized by a compile-time constant) or on the
+# fact that several of the copied upstream source files carry no
+# copyright notice of their own; none of this has anything to do with
+# the EtherCAT integration bits, and reformatting the copied parts to
+# satisfy them would defeat the purpose of keeping the diff small. This
+# filter is added on top of (not instead of) devices/CPPLINT.cfg and
+# the top-level CPPLINT.cfg.
+filter=-build/include
+filter=-legal/copyright
+filter=-runtime/arrays
+filter=-whitespace/blank_line
+filter=-whitespace/line_length