tools/check-whitespace.sh: check for trailing whitespaces

File types that we don't format automatically can end up
with such basic untidiness as trailing whitespaces.
Check for these. Remove all existing precedents.

7 files changed, 54 insertions, 54 deletions

diff --git a/docs/linux/external_fuzzing_usb.md b/docs/linux/external_fuzzing_usb.md
index 226576ec1..1309bf5ba 100644
--- a/docs/linux/external_fuzzing_usb.md
+++ b/docs/linux/external_fuzzing_usb.md
@@ -151,48 +151,48 @@ These instructions describe how to set this up on a Raspberry Pi Zero W, but any
 
 9. Download syzkaller, apply the patch below and build `syz-executor`:
 
-    ``` c
-    diff --git a/executor/common_usb.h b/executor/common_usb.h
-    index e342d808..278c2f4e 100644
-    --- a/executor/common_usb.h
-    +++ b/executor/common_usb.h
-    @@ -269,9 +269,7 @@ static volatile long syz_usb_connect(volatile long a0, volatile long a1, volatil
-    
-            // TODO: consider creating two dummy_udc's per proc to increace the chance of
-            // triggering interaction between multiple USB devices within the same program.
-    -       char device[32];
-    -       sprintf(&device[0], "dummy_udc.%llu", procid);
-    -       rv = usb_raw_init(fd, speed, "dummy_udc", &device[0]);
-    +       rv = usb_raw_init(fd, speed, "20980000.usb", "20980000.usb");
-            if (rv < 0) {
-                    debug("syz_usb_connect: usb_raw_init failed with %d\n", rv);
-                    return rv;
-    diff --git a/executor/executor.cc b/executor/executor.cc
-    index 34949a01..1afcb288 100644
-    --- a/executor/executor.cc
-    +++ b/executor/executor.cc
-    @@ -604,8 +604,8 @@ retry:
-                            call_extra_cover = true;
-                    }
-                    if (strncmp(syscalls[call_num].name, "syz_usb_connect", strlen("syz_usb_connect")) == 0) {
-    -                       prog_extra_timeout = 2000;
-    -                       call_extra_timeout = 2000;
-    +                       prog_extra_timeout = 5000;
-    +                       call_extra_timeout = 5000;
-                    }
-                    if (strncmp(syscalls[call_num].name, "syz_usb_control_io", strlen("syz_usb_control_io")) == 0)
-                            call_extra_timeout = 300;
-    ```
+``` c
+diff --git a/executor/common_usb.h b/executor/common_usb.h
+index e342d808..278c2f4e 100644
+--- a/executor/common_usb.h
++++ b/executor/common_usb.h
+@@ -269,9 +269,7 @@ static volatile long syz_usb_connect(volatile long a0, volatile long a1, volatil
+
+    // TODO: consider creating two dummy_udc's per proc to increace the chance of
+    // triggering interaction between multiple USB devices within the same program.
+-       char device[32];
+-       sprintf(&device[0], "dummy_udc.%llu", procid);
+-       rv = usb_raw_init(fd, speed, "dummy_udc", &device[0]);
++       rv = usb_raw_init(fd, speed, "20980000.usb", "20980000.usb");
+    if (rv < 0) {
+            debug("syz_usb_connect: usb_raw_init failed with %d\n", rv);
+            return rv;
+diff --git a/executor/executor.cc b/executor/executor.cc
+index 34949a01..1afcb288 100644
+--- a/executor/executor.cc
++++ b/executor/executor.cc
+@@ -604,8 +604,8 @@ retry:
+                    call_extra_cover = true;
+            }
+            if (strncmp(syscalls[call_num].name, "syz_usb_connect", strlen("syz_usb_connect")) == 0) {
+-                       prog_extra_timeout = 2000;
+-                       call_extra_timeout = 2000;
++                       prog_extra_timeout = 5000;
++                       call_extra_timeout = 5000;
+            }
+            if (strncmp(syscalls[call_num].name, "syz_usb_control_io", strlen("syz_usb_control_io")) == 0)
+                    call_extra_timeout = 300;
+```
 
-    ``` bash
-    go get -u -d github.com/google/syzkaller/prog
-    cd ~/gopath/src/github.com/google/syzkaller
-    # Put the patch above into ./syzkaller.patch
-    git apply ./syzkaller.patch
-    make executor
-    mkdir ~/syz-bin
-    cp bin/linux_arm/syz-executor ~/syz-bin/
-    ```
+``` bash
+go get -u -d github.com/google/syzkaller/prog
+cd ~/gopath/src/github.com/google/syzkaller
+# Put the patch above into ./syzkaller.patch
+git apply ./syzkaller.patch
+make executor
+mkdir ~/syz-bin
+cp bin/linux_arm/syz-executor ~/syz-bin/
+```
 
 10. Build `syz-execprog` on your host machine for arm32 with `make TARGETARCH=arm execprog` and copy to `~/syz-bin` onto the SD card. You may try building syz-execprog on the Raspberry Pi itself, but that worked poorly for me due to large memory consumption during the compilation process.
 
diff --git a/docs/linux/setup_linux-host_android-device_arm-kernel.md b/docs/linux/setup_linux-host_android-device_arm-kernel.md
index a4859fdf5..90996637a 100644
--- a/docs/linux/setup_linux-host_android-device_arm-kernel.md
+++ b/docs/linux/setup_linux-host_android-device_arm-kernel.md
@@ -5,7 +5,7 @@
 This document details the steps involved in setting up a syzkaller instance fuzzing an `arm32/64` linux kernel on an Android device.
 
 Some features of syzkaller may not yet work properly on `arm32`. For example, not all debugging and test coverage features are available in the Linux kernel for `arm32`, limiting the efficacy of syskaller in finding bugs fast.
- 
+
 These were tested on an NXP Pico-Pi-IMX7D following the instructions [here](https://developer.android.com/things/hardware/developer-kits.html).
 
 You may find additional details in syzkaller's `adb` vm implementation [here](/vm/adb/adb.go).
diff --git a/docs/linux/setup_linux-host_qemu-vm_arm-kernel.md b/docs/linux/setup_linux-host_qemu-vm_arm-kernel.md
index c88d9a8f6..3745cbcc1 100644
--- a/docs/linux/setup_linux-host_qemu-vm_arm-kernel.md
+++ b/docs/linux/setup_linux-host_qemu-vm_arm-kernel.md
@@ -5,7 +5,7 @@
 Obtain a fresh `arm-linux-gnueabihf-gcc`. Latest Debian distributions provide
 version 7.2.0, which should be enough. Otherwise you can download Linaro
 compiler [here](https://www.linaro.org/downloads).
- 
+
 # Kernel
 
 The instructions are tested with `v4.16.1`. Check that you have/backport
@@ -77,7 +77,7 @@ debugfs	/sys/kernel/debug	debugfs	defaults	0	0
 ```
 
 Then replace `output/target/etc/ssh/sshd_config` with the following contents:
- 
+
 ```
 PermitRootLogin yes
 PasswordAuthentication yes
diff --git a/docs/linux/setup_linux-host_qemu-vm_arm64-kernel.md b/docs/linux/setup_linux-host_qemu-vm_arm64-kernel.md
index d4eab5b43..a5148916d 100644
--- a/docs/linux/setup_linux-host_qemu-vm_arm64-kernel.md
+++ b/docs/linux/setup_linux-host_qemu-vm_arm64-kernel.md
@@ -109,7 +109,7 @@ At the top of /etc/init.d/S50sshd add the following lines:
     mount -t debugfs none /sys/kernel/debug
     chmod 777 /sys/kernel/debug/kcov
 
-Comment out the line 
+Comment out the line
 
     /usr/bin/ssh-keygen -A
 
diff --git a/docs/linux/setup_linux-host_qemu-vm_s390x-kernel.md b/docs/linux/setup_linux-host_qemu-vm_s390x-kernel.md
index 162016c62..adcb63c75 100644
--- a/docs/linux/setup_linux-host_qemu-vm_s390x-kernel.md
+++ b/docs/linux/setup_linux-host_qemu-vm_s390x-kernel.md
@@ -75,7 +75,7 @@ Now you should have `vmlinux` (kernel binary) and `bzImage` (packed kernel image
 ``` bash
 $ ls $KERNEL/vmlinux
 $KERNEL/vmlinux
-$ ls $KERNEL/arch/s390/boot/bzImage 
+$ ls $KERNEL/arch/s390/boot/bzImage
 $KERNEL/arch/s390/boot/bzImage
 ```
 
diff --git a/docs/linux/setup_ubuntu-host_odroid-c2-board_arm64-kernel.md b/docs/linux/setup_ubuntu-host_odroid-c2-board_arm64-kernel.md
index dfcd2eaa4..6ecf5a894 100644
--- a/docs/linux/setup_ubuntu-host_odroid-c2-board_arm64-kernel.md
+++ b/docs/linux/setup_ubuntu-host_odroid-c2-board_arm64-kernel.md
@@ -80,7 +80,7 @@ Some message
 
     ``` bash
     $ ssh root@172.16.0.31
-    root@172.16.0.31's password: 
+    root@172.16.0.31's password:
     ...
     Last login: Thu Feb 11 11:30:51 2016
     root@odroid64:~#
@@ -93,7 +93,7 @@ This hub has support for a feature called [Per Port Power Switching](http://www.
 
 [To be able to open the hub device entry](http://www.janosgyerik.com/adding-udev-rules-for-usb-debugging-android-devices/) under `/dev/` without being root, add the following file to `/etc/udev/rules.d/` on the host machine:
 ``` bash
-$ cat /etc/udev/rules.d/10-local.rules 
+$ cat /etc/udev/rules.d/10-local.rules
 SUBSYSTEM=="usb", ATTR{idVendor}=="2001", ATTR{idProduct}=="f103", MODE="0664", GROUP="plugdev"
 ```
 
@@ -101,7 +101,7 @@ SUBSYSTEM=="usb", ATTR{idVendor}=="2001", ATTR{idProduct}=="f103", MODE="0664",
 Don't forget to replug the hub after you add this file.
 
 ``` bash
-$ lsusb 
+$ lsusb
 ...
 Bus 003 Device 026: ID 2001:f103 D-Link Corp. DUB-H7 7-port USB 2.0 hub
 ...
@@ -159,14 +159,14 @@ index 165cf9783a5d..ff8b40dca9e2 100644
 @@ -653,6 +653,11 @@ KBUILD_CFLAGS += $(call cc-ifversion, -lt, 0409, \
  # Tell gcc to never replace conditional load with a non-conditional one
  KBUILD_CFLAGS  += $(call cc-option,--param=allow-store-data-races=0)
- 
+
 +# Stop gcc from converting switches into a form that defeats dead code
 +# elimination and can subsequently lead to calls to intentionally
 +# undefined functions appearing in the final link.
 +KBUILD_CFLAGS  += $(call cc-option,--param=max-fsm-thread-path-insns=1)
 +
  include scripts/Makefile.gcc-plugins
- 
+
  ifdef CONFIG_READABLE_ASM
 ```
 
@@ -177,12 +177,12 @@ index 9576775a86f6..8bc4eb36fc1b 100644
 --- a/scripts/Makefile.kasan
 +++ b/scripts/Makefile.kasan
 @@ -11,7 +11,6 @@ CFLAGS_KASAN_MINIMAL := -fsanitize=kernel-address
- 
+
  CFLAGS_KASAN := $(call cc-option, -fsanitize=kernel-address \
                 -fasan-shadow-offset=$(KASAN_SHADOW_OFFSET) \
 -               --param asan-stack=1 --param asan-globals=1 \
                 --param asan-instrumentation-with-call-threshold=$(call_threshold))
- 
+
  ifeq ($(call cc-option, $(CFLAGS_KASAN_MINIMAL) -Werror),)
 ```
 
diff --git a/docs/linux/setup_ubuntu-host_qemu-vm_x86-64-kernel.md b/docs/linux/setup_ubuntu-host_qemu-vm_x86-64-kernel.md
index 0efc42196..faa087c60 100644
--- a/docs/linux/setup_ubuntu-host_qemu-vm_x86-64-kernel.md
+++ b/docs/linux/setup_ubuntu-host_qemu-vm_x86-64-kernel.md
@@ -70,7 +70,7 @@ Now you should have `vmlinux` (kernel binary) and `bzImage` (packed kernel image
 ``` bash
 $ ls $KERNEL/vmlinux
 $KERNEL/vmlinux
-$ ls $KERNEL/arch/x86/boot/bzImage 
+$ ls $KERNEL/arch/x86/boot/bzImage
 $KERNEL/arch/x86/boot/bzImage
 ```