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Subject[tip: x86/platform] x86/rtc: Simplify PNP ids check
The following commit has been merged into the x86/platform branch of tip:

Commit-ID: bd4edba2653aeef0119b7a945f07e58711343bf9
Gitweb: https://git.kernel.org/tip/bd4edba2653aeef0119b7a945f07e58711343bf9
Author: Hans de Goede <hdegoede@redhat.com>
AuthorDate: Wed, 14 Dec 2022 22:24:47 +01:00
Committer: Ingo Molnar <mingo@kernel.org>
CommitterDate: Fri, 06 Jan 2023 04:22:34 +01:00

x86/rtc: Simplify PNP ids check

compare_pnp_id() already iterates over the single linked pnp_ids list
starting with the id past to it.

So there is no need for add_rtc_cmos() to call compare_pnp_id()
for each id on the list.

No change in functionality intended.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: linux-kernel@vger.kernel.org
---
arch/x86/kernel/rtc.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index 3490464..1309b9b 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -138,15 +138,12 @@ static __init int add_rtc_cmos(void)
static const char * const ids[] __initconst =
{ "PNP0b00", "PNP0b01", "PNP0b02", };
struct pnp_dev *dev;
- struct pnp_id *id;
int i;

pnp_for_each_dev(dev) {
- for (id = dev->id; id; id = id->next) {
- for (i = 0; i < ARRAY_SIZE(ids); i++) {
- if (compare_pnp_id(id, ids[i]) != 0)
- return 0;
- }
+ for (i = 0; i < ARRAY_SIZE(ids); i++) {
+ if (compare_pnp_id(dev->id, ids[i]) != 0)
+ return 0;
}
}
#endif
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