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UPSTREAM: powercap/drivers/dtpm: Fix __udivdi3 and __aeabi_uldivmod unresolved symbols

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32-bit architectures do not support u64 divisions, so the macro
DIV_ROUND_CLOSEST is not adequate as the compiler will replace the
call to an unexisting function for the platform, leading to
unresolved references to symbols.

Fix this by using the compatible macros:

DIV64_U64_ROUND_CLOSEST and DIV_ROUND_CLOSEST_ULL.

Fixes: a20d0ef97abf ("powercap/drivers/dtpm: Add API for dynamic thermal power management")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Link: https://lkml.org/lkml/2020/12/30/304
Bug: 182396925
Change-Id: I1a67791b071acb2fe6ed0d348f4462985ebabdc3
(cherry picked from commit 8f50db4b5c79af2ba54f5fbe8a5173fd7f37a493)
Signed-off-by: Ram Chandrasekar <quic_rkumbako@quicinc.com>
This commit is contained in:
Daniel Lezcano
2020-12-30 16:37:44 +01:00
committed by Greg Kroah-Hartman
parent 7f17016dc8
commit 578572c48c
1 changed files with 3 additions and 3 deletions
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6
drivers/powercap/dtpm.c
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@@ -99,8 +99,8 @@ static void __dtpm_rebalance_weight(struct dtpm *dtpm)
pr_debug("Setting weight '%d' for '%s'\n",
child->weight, child->zone.name);
child->weight = DIV_ROUND_CLOSEST(child->power_max * 1024,
dtpm->power_max);
child->weight = DIV64_U64_ROUND_CLOSEST(
child->power_max * 1024, dtpm->power_max);
__dtpm_rebalance_weight(child);
}
@@ -272,7 +272,7 @@ static int __set_power_limit_uw(struct dtpm *dtpm, int cid, u64 power_limit)
} else if (power_limit == dtpm->power_min) {
power = child->power_min;
} else {
power = DIV_ROUND_CLOSEST(
power = DIV_ROUND_CLOSEST_ULL(
power_limit * child->weight, 1024);
}