diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-23 17:12:06 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-23 17:12:06 -0700 |
commit | d5b4bb4d103cd601d8009f2d3a7e44586c9ae7cc (patch) | |
tree | 0f3b6da2b66fc7a4278764982279c2815c913010 /include/linux/serial.h | |
parent | c80ddb526331a72c9e9d1480f85f6fd7c74e3d2d (diff) | |
parent | bb8187d35f820671d6dd76700d77a6b55f95e2c5 (diff) |
Merge branch 'delete-mca' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
Pull the MCA deletion branch from Paul Gortmaker:
"It was good that we could support MCA machines back in the day, but
realistically, nobody is using them anymore. They were mostly limited
to 386-sx 16MHz CPU and some 486 class machines and never more than
64MB of RAM. Even the enthusiast hobbyist community seems to have
dried up close to ten years ago, based on what you can find searching
various websites dedicated to the relatively short lived hardware.
So lets remove the support relating to CONFIG_MCA. There is no point
carrying this forward, wasting cycles doing routine maintenance on it;
wasting allyesconfig build time on validating it, wasting I/O on git
grep'ping over it, and so on."
Let's see if anybody screams. It generally has compiled, and James
Bottomley pointed out that there was a MCA extension from NCR that
allowed for up to 4GB of memory and PPro-class machines. So in *theory*
there may be users out there.
But even James (technically listed as a maintainer) doesn't actually
have a system, and while Alan Cox claims to have a machine in his cellar
that he offered to anybody who wants to take it off his hands, he didn't
argue for keeping MCA support either.
So we could bring it back. But somebody had better speak up and talk
about how they have actually been using said MCA hardware with modern
kernels for us to do that. And David already took the patch to delete
all the networking driver code (commit a5e371f61ad3: "drivers/net:
delete all code/drivers depending on CONFIG_MCA").
* 'delete-mca' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
MCA: delete all remaining traces of microchannel bus support.
scsi: delete the MCA specific drivers and driver code
serial: delete the MCA specific 8250 support.
arm: remove ability to select CONFIG_MCA
Diffstat (limited to 'include/linux/serial.h')
-rw-r--r-- | include/linux/serial.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/include/linux/serial.h b/include/linux/serial.h index 441980ecc4e..90e9f981358 100644 --- a/include/linux/serial.h +++ b/include/linux/serial.h @@ -130,7 +130,6 @@ struct serial_uart_config { #define ASYNCB_CHECK_CD 25 /* i.e., CLOCAL */ #define ASYNCB_SHARE_IRQ 24 /* for multifunction cards, no longer used */ #define ASYNCB_CONS_FLOW 23 /* flow control for console */ -#define ASYNCB_BOOT_ONLYMCA 22 /* Probe only if MCA bus */ #define ASYNCB_FIRST_KERNEL 22 #define ASYNC_HUP_NOTIFY (1U << ASYNCB_HUP_NOTIFY) @@ -166,7 +165,6 @@ struct serial_uart_config { #define ASYNC_CHECK_CD (1U << ASYNCB_CHECK_CD) #define ASYNC_SHARE_IRQ (1U << ASYNCB_SHARE_IRQ) #define ASYNC_CONS_FLOW (1U << ASYNCB_CONS_FLOW) -#define ASYNC_BOOT_ONLYMCA (1U << ASYNCB_BOOT_ONLYMCA) #define ASYNC_INTERNAL_FLAGS (~((1U << ASYNCB_FIRST_KERNEL) - 1)) /* |