lkml.org 
[lkml]   [2014]   [Oct]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH 0/3] Revert MSI msg API churn
Date
The MSI message API has gone through some churn, that I think results
in an inconsistent interface. We now have this:

void read_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
void get_cached_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
void __write_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
void write_msi_msg(unsigned int irq, struct msi_msg *msg);

write_msi_msg() takes an irq arg, but read_msi_msg() takes an
msi_desc. Presumably write_msi_msg() was not converted because it
has a much larger user base, but this sort of inconsitency results
in a poor API.

This series reverts a selection of commits to return us to:

void __read_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
void __get_cached_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
void __write_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
void get_cached_msi_msg(unsigned int irq, struct msi_msg *msg);
void write_msi_msg(unsigned int irq, struct msi_msg *msg);

I've left the removal of read_msi_msg() since it has no users, but
restored get_cached_msi_msg() since it has an imminent user. This
will also cleanup the upcoming merge conflicts in next. Thanks,

Alex

---

Alex Williamson (3):
Revert "PCI/MSI: Remove unused get_cached_msi_msg()"
Revert "PCI/MSI: Rename __get_cached_msi_msg() to get_cached_msi_msg()"
Revert "PCI/MSI: Rename __read_msi_msg() to read_msi_msg()"


arch/ia64/kernel/msi_ia64.c | 2 +-
arch/ia64/sn/kernel/msi_sn.c | 2 +-
arch/powerpc/platforms/pseries/msi.c | 2 +-
arch/x86/kernel/apic/io_apic.c | 2 +-
arch/x86/pci/xen.c | 2 +-
drivers/pci/msi.c | 11 +++++++++--
include/linux/msi.h | 5 +++--
7 files changed, 17 insertions(+), 9 deletions(-)


\
 
 \ /
  Last update: 2014-10-01 19:21    [W:0.040 / U:0.032 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site