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Filename Latest commit message Latest commit date
Andy Shevchenko 7d81fcc203 include/linux/list.h: add a macro to test if entry is pointing to the head
commit e130816164e244b692921de49771eeb28205152d upstream.

Add a macro to test if entry is pointing to the head of the list which is
useful in cases like:

  list_for_each_entry(pos, &head, member) {
    if (cond)
      break;
  }
  if (list_entry_is_head(pos, &head, member))
    return -ERRNO;

that allows to avoid additional variable to be added to track if loop has
not been stopped in the middle.

While here, convert list_for_each_entry*() family of macros to use a new one.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lkml.kernel.org/r/20200929134342.51489-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-09-22 12:26:20 +02:00
arch xen: fix setting of max_pfn in shared_info 2021-09-22 12:26:20 +02:00
block blk-zoned: allow BLKREPORTZONE without CAP_SYS_ADMIN 2021-09-22 12:26:19 +02:00
certs certs: Trigger creation of RSA module signing key if it's not an RSA key 2021-09-15 09:47:29 +02:00
crypto crypto: shash - avoid comparing pointers to exported functions under CFI 2021-07-14 16:53:13 +02:00
Documentation KVM: X86: MMU: Use the correct inherited permissions to get shadow page 2021-08-15 13:08:04 +02:00
drivers PCI/MSI: Skip masking MSI-X on Xen PV 2021-09-22 12:26:19 +02:00
fs btrfs: reset replace target device to allocation state on close 2021-09-22 12:26:19 +02:00
include include/linux/list.h: add a macro to test if entry is pointing to the head 2021-09-22 12:26:20 +02:00
init kbuild: add CONFIG_LD_IS_LLD 2021-06-30 08:47:44 -04:00
ipc
kernel Revert "posix-cpu-timers: Force next expiration recalc after itimer reset" 2021-09-16 12:56:13 +02:00
lib lib/mpi: use kcalloc in mpi_resize 2021-09-15 09:47:29 +02:00
LICENSES
mm mm/page_alloc: speed up the iteration of max_order 2021-09-12 08:56:41 +02:00
net Revert "Bluetooth: Move shutdown callback before flushing tx and rx queue" 2021-09-16 12:56:13 +02:00
samples samples/bpf: Fix the error return code of xdp_redirect's main() 2021-07-14 16:53:30 +02:00
scripts scripts/tracing: fix the bug that can't parse raw_trace_func 2021-08-12 13:21:00 +02:00
security IMA: remove the dependency on CRYPTO_MD5 2021-09-15 09:47:41 +02:00
sound ASoC: wcd9335: Disable irq on slave ports in the remove function 2021-09-15 09:47:37 +02:00
tools bpf: Fix a typo of reuseport map in bpf.h. 2021-09-15 09:47:30 +02:00
usr
virt KVM: Do not leak memory for duplicate debugfs directories 2021-08-12 13:21:03 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.147 2021-09-16 12:56:14 +02:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.