linux-next: build failure after merge of the battery tree

Mark Brown <[email protected]> Tue, 21 Jul 2026 15:50:58 +0100

Newsgroups	org.kernel.vger.linux-next,org.kernel.vger.linux-kernel
Message-ID	<[email protected]>

Hi all,

After merging the battery tree, today's linux-next build (x86_64
allmodconfig) failed like this:

/tmp/next/build/drivers/power/supply/sgm41542_charger.c:209:12: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
  209 |         reg_val = FIELD_PREP(SGM4154X_PRECHRG_CUR_MASK, reg_val);
      |                   ^
/tmp/next/build/drivers/power/supply/sgm41542_charger.c:249:8: error: call to undeclared function 'FIELD_GET'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
  249 |         val = FIELD_GET(SGM4154X_ICHRG_CUR_MASK, reg);
      |               ^
/tmp/next/build/drivers/power/supply/sgm41542_charger.c:271:12: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
  271 |         reg_val = FIELD_PREP(SGM4154X_VREG_V_MASK, reg_val);
      |                   ^
/tmp/next/build/drivers/power/supply/sgm41542_charger.c:293:8: error: call to undeclared function 'FIELD_GET'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
  293 |         val = FIELD_GET(SGM4154X_VREG_V_MASK, reg);
      |               ^
/tmp/next/build/drivers/power/supply/sgm41542_charger.c:452:9: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
  452 |         time = FIELD_PREP(SGM4154X_WDT_TIMER_MASK, time);
      |                ^
5 errors generated.


Caused by commit

   ac55d04627d41 (power: supply: sgm41542: Add SG Micro sgm41542 charger)

I have used the version from next-20260720 instead.

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