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authorBen Hutchings <ben@decadent.org.uk>2012-02-11 22:57:19 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-02-13 15:24:26 -0800
commit5467bdda4a326513c2f14b712a22d59115b7ae94 (patch)
tree535210ef9bf238b1b4df1988114686f09896dbf9
parent70142a9dd154f54f7409871ead86f7d77f2c6576 (diff)
x86/cpu: Clean up modalias feature matching
We currently include commas on both sides of the feature ID in a modalias, but this prevents the lowest numbered feature of a CPU from being matched. Since all feature IDs have the same length, we do not need to worry about substring matches, so omit commas from the modalias entirely. Avoid generating multiple adjacent wildcards when there is no feature ID to match. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Acked-by: Thomas Renninger <trenn@suse.de> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--arch/x86/kernel/cpu/match.c3
-rw-r--r--scripts/mod/file2alias.c5
2 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kernel/cpu/match.c b/arch/x86/kernel/cpu/match.c
index 2dfa52bcdfe2..5502b289341b 100644
--- a/arch/x86/kernel/cpu/match.c
+++ b/arch/x86/kernel/cpu/match.c
@@ -63,7 +63,7 @@ ssize_t arch_print_cpu_modalias(struct device *dev,
boot_cpu_data.x86_model);
size -= n;
buf += n;
- size -= 2;
+ size -= 1;
for (i = 0; i < NCAPINTS*32; i++) {
if (boot_cpu_has(i)) {
n = snprintf(buf, size, ",%04X", i);
@@ -75,7 +75,6 @@ ssize_t arch_print_cpu_modalias(struct device *dev,
buf += n;
}
}
- *buf++ = ',';
*buf++ = '\n';
return buf - bufptr;
}
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index a468af059834..78fd81fb9732 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -1021,8 +1021,9 @@ static int do_x86cpu_entry(const char *filename, struct x86_cpu_id *id,
ADD(alias, "vendor:", id->vendor != X86_VENDOR_ANY, id->vendor);
ADD(alias, ":family:", id->family != X86_FAMILY_ANY, id->family);
ADD(alias, ":model:", id->model != X86_MODEL_ANY, id->model);
- ADD(alias, ":feature:*,", id->feature != X86_FEATURE_ANY, id->feature);
- strcat(alias, ",*");
+ strcat(alias, ":feature:*");
+ if (id->feature != X86_FEATURE_ANY)
+ sprintf(alias + strlen(alias), "%04X*", id->feature);
return 1;
}
ADD_TO_DEVTABLE("x86cpu", struct x86_cpu_id, do_x86cpu_entry);