From: Geert Uytterhoeven Date: Fri, 9 Aug 2013 21:26:12 +0000 (+0000) Subject: m68k: Ignore disabled HSYNC interrupt on Atari for irqs_disabled() X-Git-Tag: v3.12-rc1~188^2~1 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3c776a07914c9a154902486ac848abc16111d35e;p=pandora-kernel.git m68k: Ignore disabled HSYNC interrupt on Atari for irqs_disabled() When running a multi-platform kernel on Atari, warning messages like the following may be printed: WARNING: at /root/linux-3.10.1/init/main.c:698 do_one_initcall+0x12e/0x13a() initcall param_sysfs_init+0x0/0x1a4 returned with disabled interrupts This is caused by the different definitions of ALLOWINT for Atari and other platforms: #if defined(MACH_ATARI_ONLY) #define ALLOWINT (~0x500) #else #define ALLOWINT (~0x700) #endif On Atari, we want to disable the high-frequency HSYNC interrupt: - On Atari-only kernels, this is handled completely through ALLOWINT, - On multi-platform kernels, this is handled by disabling the HSYNC interrupt from the interrupt handler. However, as in the latter case arch_irqs_disabled_flags() didn't ignore the disabling of the HSYNC interrupt, irqs_disabled() would detect false positives. Ignore the HSYNC interrupt when running on Atari to fix this. For single-platform kernels this test is optimized away by the compiler. Reported-by: Thorsten Glaser Signed-off-by: Geert Uytterhoeven Tested-by: Thorsten Glaser --- Reading git-diff-tree failed