Hi, On Wed, May 20, 2020 at 03:47:24PM +0900, Takashi Sakamoto wrote: > Hi, > > Oscar Carter works for Control Flow Integrity build. Any cast > of function callback is inconvenient for the work. Unfortunately, > current code of firewire-core driver includes the cast[1] and Oscar > posted some patches to remove it[2]. The patch is itself good. However, > it includes changes existent kernel API and all of drivers as user > of the API get affects from the change. > > This patchset is an alternative idea to add a new kernel API specific > for multichannel isoc context. The existent kernel API and drivers is > left as is. > > Practically, no in-kernel drivers use the additional API. Although the > API is exported in the patchset, it's better to discuss about unexporting > the API. > > [1] > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/firewire/core-cdev.c#n985 > [2] https://lore.kernel.org/lkml/20200519173425.4724-1-oscar.car...@gmx.com/ > > Regards > > Takashi Sakamoto (2): > firewire-core: add kernel API to construct multichannel isoc context > firewire-core: obsolete cast of function callback > > drivers/firewire/core-cdev.c | 44 +++++++++++++++++++----------------- > drivers/firewire/core-iso.c | 17 ++++++++++++++ > include/linux/firewire.h | 3 +++ > 3 files changed, 43 insertions(+), 21 deletions(-) > > -- > 2.25.1 > Thanks for your work and new proposal. I've done a test build an it cleans the -Wcast-function-type warning without the need to change the current API. So, it looks good to me.
Thanks, Oscar Carter
