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Drop obsolete 'mips/ide: flush dcache also if icache does not snoop dcache' 

We no longer enable IDE drivers on MIPS, and libata uses
flush_dcache_page() which has the right condition.

svn path=/dists/sid/linux-2.6/; revision=19004
This commit is contained in:
Ben Hutchings 2012-05-17 01:18:19 +00:00
parent 875476dfff
commit b8ab1403bc
2 changed files with 0 additions and 47 deletions
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46
debian/patches/bugfix/mips/mips-ide-flush-dcache.patch vendored
View File

@ -1,46 +0,0 @@
From: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Subject: mips/ide: flush dcache also if icache does not snoop dcache
If this is not done then the new just read data which remains in dcache
will not make it into icache on time. Thus the CPU loads invalid data
and executes crap. The result is that the user is not able to execute
anything from its IDE based media while reading plain data is still
working well.
This problem has been reported as Debian #404951.
Cc: stable@kernel.org
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
---
arch/mips/include/asm/mach-generic/ide.h | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/mips/include/asm/mach-generic/ide.h b/arch/mips/include/asm/mach-generic/ide.h
index 9c93a5b..e80e47f 100644
--- a/arch/mips/include/asm/mach-generic/ide.h
+++ b/arch/mips/include/asm/mach-generic/ide.h
@@ -23,7 +23,7 @@
static inline void __ide_flush_prologue(void)
{
#ifdef CONFIG_SMP
- if (cpu_has_dc_aliases)
+ if (cpu_has_dc_aliases || !cpu_has_ic_fills_f_dc)
preempt_disable();
#endif
}
@@ -31,14 +31,14 @@ static inline void __ide_flush_prologue(void)
static inline void __ide_flush_epilogue(void)
{
#ifdef CONFIG_SMP
- if (cpu_has_dc_aliases)
+ if (cpu_has_dc_aliases || !cpu_has_ic_fills_f_dc)
preempt_enable();
#endif
}
static inline void __ide_flush_dcache_range(unsigned long addr, unsigned long size)
{
- if (cpu_has_dc_aliases) {
+ if (cpu_has_dc_aliases || !cpu_has_ic_fills_f_dc) {
unsigned long end = addr + size;
while (addr < end) {

1
debian/patches/series/base vendored
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@ -31,7 +31,6 @@
+ debian/rds-Disable-auto-loading-as-mitigation-against-local.patch
+ debian/decnet-Disable-auto-loading-as-mitigation-against-lo.patch
+ bugfix/mips/mips-ide-flush-dcache.patch
+ bugfix/all/dm-Deal-with-merge_bvec_fn-in-component-devices-bett.patch
+ features/all/Kbuild-kconfig-Verbose-version-of-listnewconfig.patch