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Date: Tue, 18 Dec 2018 04:33:10 +0800
From: kbuild test robot <lkp@...el.com>
To: Jianxin Pan <jianxin.pan@...ogic.com>
Cc: kbuild-all@...org, Jerome Brunet <jbrunet@...libre.com>,
Neil Armstrong <narmstrong@...libre.com>,
Yixun Lan <yixun.lan@...ogic.com>,
Jianxin Pan <jianxin.pan@...ogic.com>,
Kevin Hilman <khilman@...libre.com>,
Carlo Caione <carlo@...one.org>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>,
Miquel Raynal <miquel.raynal@...tlin.com>,
Boris Brezillon <boris.brezillon@...tlin.com>,
Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
Liang Yang <liang.yang@...ogic.com>,
Jian Hu <jian.hu@...ogic.com>,
Qiufang Dai <qiufang.dai@...ogic.com>,
Hanjie Lin <hanjie.lin@...ogic.com>,
Victor Wan <victor.wan@...ogic.com>, linux-clk@...r.kernel.org,
linux-amlogic@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v8 4/4] clk: meson: add sub MMC clock controller driver
Hi Yixun,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on clk/clk-next]
[also build test ERROR on next-20181217]
[cannot apply to v4.20-rc7]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Jianxin-Pan/clk-meson-add-one-based-divider-support-for-sclk-divider/20181218-021139
base: https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git clk-next
config: sh-allmodconfig (attached as .config)
compiler: sh4-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=7.2.0 make.cross ARCH=sh
All error/warnings (new ones prefixed by >>):
In file included from include/linux/cache.h:5:0,
from include/linux/printk.h:9,
from include/linux/kernel.h:14,
from include/asm-generic/bug.h:18,
from arch/sh/include/asm/bug.h:112,
from include/linux/bug.h:5,
from include/linux/io.h:23,
from include/linux/clk-provider.h:9,
from drivers/clk//meson/clk-phase-delay.c:13:
drivers/clk//meson/clk-phase-delay.c: In function 'meson_clk_phase_delay_get_phase':
>> drivers/clk//meson/clk-phase-delay.c:33:40: warning: integer overflow in expression [-Woverflow]
period_ps = DIV_ROUND_UP(NSEC_PER_SEC * 1000,
^
include/uapi/linux/kernel.h:13:40: note: in definition of macro '__KERNEL_DIV_ROUND_UP'
#define __KERNEL_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
^
>> drivers/clk//meson/clk-phase-delay.c:33:14: note: in expansion of macro 'DIV_ROUND_UP'
period_ps = DIV_ROUND_UP(NSEC_PER_SEC * 1000,
^~~~~~~~~~~~
drivers/clk//meson/clk-phase-delay.c: In function 'meson_clk_phase_delay_set_phase':
drivers/clk//meson/clk-phase-delay.c:50:40: warning: integer overflow in expression [-Woverflow]
period_ps = DIV_ROUND_UP(NSEC_PER_SEC * 1000, clk_hw_get_rate(hw));
^
include/uapi/linux/kernel.h:13:40: note: in definition of macro '__KERNEL_DIV_ROUND_UP'
#define __KERNEL_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
^
drivers/clk//meson/clk-phase-delay.c:50:14: note: in expansion of macro 'DIV_ROUND_UP'
period_ps = DIV_ROUND_UP(NSEC_PER_SEC * 1000, clk_hw_get_rate(hw));
^~~~~~~~~~~~
In file included from ./arch/sh/include/generated/asm/div64.h:1:0,
from include/linux/kernel.h:207,
from include/asm-generic/bug.h:18,
from arch/sh/include/asm/bug.h:112,
from include/linux/bug.h:5,
from include/linux/io.h:23,
from include/linux/clk-provider.h:9,
from drivers/clk//meson/clk-phase-delay.c:13:
include/asm-generic/div64.h:222:28: warning: comparison of distinct pointer types lacks a cast
(void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
^
>> drivers/clk//meson/clk-phase-delay.c:56:6: note: in expansion of macro 'do_div'
r = do_div(degrees, 360 / 1 << (ph->phase.width));
^~~~~~
In file included from include/linux/init.h:5:0,
from include/linux/io.h:22,
from include/linux/clk-provider.h:9,
from drivers/clk//meson/clk-phase-delay.c:13:
include/asm-generic/div64.h:235:25: warning: right shift count >= width of type [-Wshift-count-overflow]
} else if (likely(((n) >> 32) == 0)) { \
^
include/linux/compiler.h:76:40: note: in definition of macro 'likely'
# define likely(x) __builtin_expect(!!(x), 1)
^
>> drivers/clk//meson/clk-phase-delay.c:56:6: note: in expansion of macro 'do_div'
r = do_div(degrees, 360 / 1 << (ph->phase.width));
^~~~~~
In file included from ./arch/sh/include/generated/asm/div64.h:1:0,
from include/linux/kernel.h:207,
from include/asm-generic/bug.h:18,
from arch/sh/include/asm/bug.h:112,
from include/linux/bug.h:5,
from include/linux/io.h:23,
from include/linux/clk-provider.h:9,
from drivers/clk//meson/clk-phase-delay.c:13:
>> include/asm-generic/div64.h:239:22: error: passing argument 1 of '__div64_32' from incompatible pointer type [-Werror=incompatible-pointer-types]
__rem = __div64_32(&(n), __base); \
^
>> drivers/clk//meson/clk-phase-delay.c:56:6: note: in expansion of macro 'do_div'
r = do_div(degrees, 360 / 1 << (ph->phase.width));
^~~~~~
include/asm-generic/div64.h:213:17: note: expected 'uint64_t * {aka long long unsigned int *}' but argument is of type 'int *'
extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
^~~~~~~~~~
cc1: some warnings being treated as errors
--
In file included from include/linux/cache.h:5:0,
from include/linux/printk.h:9,
from include/linux/kernel.h:14,
from include/asm-generic/bug.h:18,
from arch/sh/include/asm/bug.h:112,
from include/linux/bug.h:5,
from include/linux/io.h:23,
from include/linux/clk-provider.h:9,
from drivers/clk/meson/clk-phase-delay.c:13:
drivers/clk/meson/clk-phase-delay.c: In function 'meson_clk_phase_delay_get_phase':
drivers/clk/meson/clk-phase-delay.c:33:40: warning: integer overflow in expression [-Woverflow]
period_ps = DIV_ROUND_UP(NSEC_PER_SEC * 1000,
^
include/uapi/linux/kernel.h:13:40: note: in definition of macro '__KERNEL_DIV_ROUND_UP'
#define __KERNEL_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
^
drivers/clk/meson/clk-phase-delay.c:33:14: note: in expansion of macro 'DIV_ROUND_UP'
period_ps = DIV_ROUND_UP(NSEC_PER_SEC * 1000,
^~~~~~~~~~~~
drivers/clk/meson/clk-phase-delay.c: In function 'meson_clk_phase_delay_set_phase':
drivers/clk/meson/clk-phase-delay.c:50:40: warning: integer overflow in expression [-Woverflow]
period_ps = DIV_ROUND_UP(NSEC_PER_SEC * 1000, clk_hw_get_rate(hw));
^
include/uapi/linux/kernel.h:13:40: note: in definition of macro '__KERNEL_DIV_ROUND_UP'
#define __KERNEL_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
^
drivers/clk/meson/clk-phase-delay.c:50:14: note: in expansion of macro 'DIV_ROUND_UP'
period_ps = DIV_ROUND_UP(NSEC_PER_SEC * 1000, clk_hw_get_rate(hw));
^~~~~~~~~~~~
In file included from ./arch/sh/include/generated/asm/div64.h:1:0,
from include/linux/kernel.h:207,
from include/asm-generic/bug.h:18,
from arch/sh/include/asm/bug.h:112,
from include/linux/bug.h:5,
from include/linux/io.h:23,
from include/linux/clk-provider.h:9,
from drivers/clk/meson/clk-phase-delay.c:13:
include/asm-generic/div64.h:222:28: warning: comparison of distinct pointer types lacks a cast
(void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
^
drivers/clk/meson/clk-phase-delay.c:56:6: note: in expansion of macro 'do_div'
r = do_div(degrees, 360 / 1 << (ph->phase.width));
^~~~~~
In file included from include/linux/init.h:5:0,
from include/linux/io.h:22,
from include/linux/clk-provider.h:9,
from drivers/clk/meson/clk-phase-delay.c:13:
include/asm-generic/div64.h:235:25: warning: right shift count >= width of type [-Wshift-count-overflow]
} else if (likely(((n) >> 32) == 0)) { \
^
include/linux/compiler.h:76:40: note: in definition of macro 'likely'
# define likely(x) __builtin_expect(!!(x), 1)
^
drivers/clk/meson/clk-phase-delay.c:56:6: note: in expansion of macro 'do_div'
r = do_div(degrees, 360 / 1 << (ph->phase.width));
^~~~~~
In file included from ./arch/sh/include/generated/asm/div64.h:1:0,
from include/linux/kernel.h:207,
from include/asm-generic/bug.h:18,
from arch/sh/include/asm/bug.h:112,
from include/linux/bug.h:5,
from include/linux/io.h:23,
from include/linux/clk-provider.h:9,
from drivers/clk/meson/clk-phase-delay.c:13:
>> include/asm-generic/div64.h:239:22: error: passing argument 1 of '__div64_32' from incompatible pointer type [-Werror=incompatible-pointer-types]
__rem = __div64_32(&(n), __base); \
^
drivers/clk/meson/clk-phase-delay.c:56:6: note: in expansion of macro 'do_div'
r = do_div(degrees, 360 / 1 << (ph->phase.width));
^~~~~~
include/asm-generic/div64.h:213:17: note: expected 'uint64_t * {aka long long unsigned int *}' but argument is of type 'int *'
extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
^~~~~~~~~~
cc1: some warnings being treated as errors
vim +/__div64_32 +239 include/asm-generic/div64.h
^1da177e Linus Torvalds 2005-04-16 215
^1da177e Linus Torvalds 2005-04-16 216 /* The unnecessary pointer compare is there
^1da177e Linus Torvalds 2005-04-16 217 * to check for type safety (n must be 64bit)
^1da177e Linus Torvalds 2005-04-16 218 */
^1da177e Linus Torvalds 2005-04-16 219 # define do_div(n,base) ({ \
^1da177e Linus Torvalds 2005-04-16 220 uint32_t __base = (base); \
^1da177e Linus Torvalds 2005-04-16 221 uint32_t __rem; \
^1da177e Linus Torvalds 2005-04-16 222 (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
911918aa Nicolas Pitre 2015-11-02 223 if (__builtin_constant_p(__base) && \
911918aa Nicolas Pitre 2015-11-02 224 is_power_of_2(__base)) { \
911918aa Nicolas Pitre 2015-11-02 225 __rem = (n) & (__base - 1); \
911918aa Nicolas Pitre 2015-11-02 226 (n) >>= ilog2(__base); \
461a5e51 Nicolas Pitre 2015-10-30 227 } else if (__div64_const32_is_OK && \
461a5e51 Nicolas Pitre 2015-10-30 228 __builtin_constant_p(__base) && \
461a5e51 Nicolas Pitre 2015-10-30 229 __base != 0) { \
461a5e51 Nicolas Pitre 2015-10-30 230 uint32_t __res_lo, __n_lo = (n); \
461a5e51 Nicolas Pitre 2015-10-30 231 (n) = __div64_const32(n, __base); \
461a5e51 Nicolas Pitre 2015-10-30 232 /* the remainder can be computed with 32-bit regs */ \
461a5e51 Nicolas Pitre 2015-10-30 233 __res_lo = (n); \
461a5e51 Nicolas Pitre 2015-10-30 234 __rem = __n_lo - __res_lo * __base; \
911918aa Nicolas Pitre 2015-11-02 235 } else if (likely(((n) >> 32) == 0)) { \
^1da177e Linus Torvalds 2005-04-16 236 __rem = (uint32_t)(n) % __base; \
^1da177e Linus Torvalds 2005-04-16 237 (n) = (uint32_t)(n) / __base; \
^1da177e Linus Torvalds 2005-04-16 238 } else \
^1da177e Linus Torvalds 2005-04-16 @239 __rem = __div64_32(&(n), __base); \
^1da177e Linus Torvalds 2005-04-16 240 __rem; \
^1da177e Linus Torvalds 2005-04-16 241 })
^1da177e Linus Torvalds 2005-04-16 242
:::::: The code at line 239 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2
:::::: TO: Linus Torvalds <torvalds@...970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@...970.osdl.org>
---
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