Fork of reMarkable kernel https://github.com/reMarkable/linux
![]() I was trying to understand this code while working on a warning fix and the locking made no sense: spin_lock_irqsave() is pointless when run inside of an interrupt handler or nested inside of another spin_lock_irq() or spin_lock_irqsave(). Here it turned out that the comment above the function is wrong, as both recv_ishtp_cl_msg_dma() and recv_ishtp_cl_msg() can in fact be called from a work queue rather than an ISR, so we do have to use the irqsave() version once. This fixes the comments accordingly, removes the misleading 'dev_flags' variable and modifies the inner spinlock to not use 'irqsave'. No functional change is intended, this is just for readability and it slightly simplifies the object code. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz> |
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arch | ||
block | ||
certs | ||
crypto | ||
Documentation | ||
drivers | ||
firmware | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.cocciconfig | ||
.get_maintainer.ignore | ||
.gitattributes | ||
.gitignore | ||
.mailmap | ||
COPYING | ||
CREDITS | ||
Kbuild | ||
Kconfig | ||
MAINTAINERS | ||
Makefile | ||
README |
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.