[added Mike/linux-clk and David/dri-devel] A patch I produced is now highlighting existing bugs in the drivers listed below. On Tue, 3 Nov 2015, kbuild test robot wrote: > Hi Nicolas, > > [auto build test WARNING on asm-generic/master -- if it's inappropriate base, please suggest rules for selecting the more suitable base] > > url: https://github.com/0day-ci/linux/commits/Nicolas-Pitre/div64-h-optimize-do_div-for-power-of-two-constant-divisors/20151103-065348 > config: arm-multi_v7_defconfig (attached as .config) > reproduce: > wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # save the attached .config to linux build tree > make.cross ARCH=arm > > All warnings (new ones prefixed by >>): > > In file included from arch/arm/include/asm/div64.h:126:0, > from include/linux/kernel.h:136, > from include/asm-generic/bug.h:13, > from arch/arm/include/asm/bug.h:62, > from include/linux/bug.h:4, > from include/linux/io.h:23, > from include/linux/clk-provider.h:14, > from drivers/clk/imx/clk-pllv1.c:1: > drivers/clk/imx/clk-pllv1.c: In function 'clk_pllv1_recalc_rate': > include/asm-generic/div64.h:217:28: warning: comparison of distinct pointer types lacks a cast > (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \ > ^ > >> drivers/clk/imx/clk-pllv1.c:99:2: note: in expansion of macro 'do_div' > do_div(ll, mfd + 1); > ^ Here the problem is in clk-pllv1.c where the ll variable is declared as a long long. It should be an unsigned long long, or better yet an uint64_t or u64. > -- > In file included from arch/arm/include/asm/div64.h:126:0, > from include/linux/kernel.h:136, > from drivers/clk/imx/clk-pllv2.c:1: > drivers/clk/imx/clk-pllv2.c: In function '__clk_pllv2_recalc_rate': > include/asm-generic/div64.h:217:28: warning: comparison of distinct pointer types lacks a cast > (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \ > ^ > >> drivers/clk/imx/clk-pllv2.c:103:2: note: in expansion of macro 'do_div' > do_div(temp, mfd + 1); > ^ Same thing: temp is declared as a s64. It should be u64. > drivers/clk/imx/clk-pllv2.c: In function '__clk_pllv2_set_rate': > include/asm-generic/div64.h:217:28: warning: comparison of distinct pointer types lacks a cast > (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \ > ^ > drivers/clk/imx/clk-pllv2.c:145:2: note: in expansion of macro 'do_div' > do_div(temp64, quad_parent_rate / 1000000); > ^ Ditto here. > -- > In file included from arch/arm/include/asm/div64.h:126:0, > from include/linux/kernel.h:136, > from drivers/clk/tegra/clk-divider.c:17: > drivers/clk/tegra/clk-divider.c: In function 'get_div': > include/asm-generic/div64.h:217:28: warning: comparison of distinct pointer types lacks a cast > (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \ > ^ > >> drivers/clk/tegra/clk-divider.c:50:2: note: in expansion of macro 'do_div' > do_div(divider_ux1, rate); > ^ Ditto here. > -- > In file included from arch/arm/include/asm/div64.h:126:0, > from include/linux/kernel.h:136, > from drivers/clk/ti/clkt_dpll.c:17: > drivers/clk/ti/clkt_dpll.c: In function 'omap2_get_dpll_rate': > include/asm-generic/div64.h:217:28: warning: comparison of distinct pointer types lacks a cast > (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \ > ^ > >> drivers/clk/ti/clkt_dpll.c:266:2: note: in expansion of macro 'do_div' > do_div(dpll_clk, dpll_div + 1); > ^ Ditto here. > -- > In file included from arch/arm/include/asm/div64.h:126:0, > from include/linux/kernel.h:136, > from include/linux/clk.h:16, > from drivers/clk/ti/fapll.c:12: > drivers/clk/ti/fapll.c: In function 'ti_fapll_recalc_rate': > include/asm-generic/div64.h:217:28: warning: comparison of distinct pointer types lacks a cast > (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \ > ^ > >> drivers/clk/ti/fapll.c:182:3: note: in expansion of macro 'do_div' > do_div(rate, fapll_p); > ^ Ditto here. > drivers/clk/ti/fapll.c: In function 'ti_fapll_synth_recalc_rate': > include/asm-generic/div64.h:217:28: warning: comparison of distinct pointer types lacks a cast > (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \ > ^ > drivers/clk/ti/fapll.c:346:3: note: in expansion of macro 'do_div' > do_div(rate, synth_div_freq); > ^ Ditto here. > -- > In file included from arch/arm/include/asm/div64.h:126:0, > from include/linux/kernel.h:136, > from include/linux/list.h:8, > from include/linux/preempt.h:10, > from include/linux/spinlock.h:50, > from include/linux/mmzone.h:7, > from include/linux/gfp.h:5, > from include/linux/slab.h:14, > from drivers/gpu/drm/nouveau/include/nvif/os.h:5, > from drivers/gpu/drm/nouveau/include/nvkm/core/os.h:3, > from drivers/gpu/drm/nouveau/include/nvkm/core/event.h:3, > from drivers/gpu/drm/nouveau/include/nvkm/core/device.h:3, > from drivers/gpu/drm/nouveau/include/nvkm/core/subdev.h:3, > from drivers/gpu/drm/nouveau/include/nvkm/subdev/clk.h:3, > from drivers/gpu/drm/nouveau/nvkm/subdev/clk/priv.h:4, > from drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk20a.c:26: > drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk20a.c: In function 'gk20a_pllg_calc_rate': > include/asm-generic/div64.h:217:28: warning: comparison of distinct pointer types lacks a cast > (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \ > ^ > drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk20a.c:144:2: note: in expansion of macro 'do_div' > do_div(rate, divider); > ^ > drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk20a.c:144:2: warning: right shift count >= width of type > In file included from include/linux/kernel.h:136:0, > from include/linux/list.h:8, > from include/linux/preempt.h:10, > from include/linux/spinlock.h:50, > from include/linux/mmzone.h:7, > from include/linux/gfp.h:5, > from include/linux/slab.h:14, > from drivers/gpu/drm/nouveau/include/nvif/os.h:5, > from drivers/gpu/drm/nouveau/include/nvkm/core/os.h:3, > from drivers/gpu/drm/nouveau/include/nvkm/core/event.h:3, > from drivers/gpu/drm/nouveau/include/nvkm/core/device.h:3, > from drivers/gpu/drm/nouveau/include/nvkm/core/subdev.h:3, > from drivers/gpu/drm/nouveau/include/nvkm/subdev/clk.h:3, > from drivers/gpu/drm/nouveau/nvkm/subdev/clk/priv.h:4, > from drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk20a.c:26: > >> arch/arm/include/asm/div64.h:49:20: warning: passing argument 1 of '__div64_32' from incompatible pointer type > #define __div64_32 __div64_32 > ^ > >> include/asm-generic/div64.h:235:11: note: in expansion of macro '__div64_32' > __rem = __div64_32(&(n), __base); \ > ^ > drivers/gpu/drm/nouveau/nvkm/subdev/clk/gk20a.c:144:2: note: in expansion of macro 'do_div' > do_div(rate, divider); > ^ > arch/arm/include/asm/div64.h:32:24: note: expected 'uint64_t *' but argument is of type 'u32 *' > static inline uint32_t __div64_32(uint64_t *n, uint32_t base) > ^ This one is a plain bug. > -- > In file included from arch/arm/include/asm/div64.h:126:0, > from include/linux/kernel.h:136, > from include/linux/list.h:8, > from include/linux/preempt.h:10, > from include/linux/spinlock.h:50, > from include/linux/mmzone.h:7, > from include/linux/gfp.h:5, > from include/linux/slab.h:14, > from drivers/gpu/drm//nouveau/include/nvif/os.h:5, > from drivers/gpu/drm//nouveau/include/nvkm/core/os.h:3, > from drivers/gpu/drm//nouveau/include/nvkm/core/event.h:3, > from drivers/gpu/drm//nouveau/include/nvkm/core/device.h:3, > from drivers/gpu/drm//nouveau/include/nvkm/core/subdev.h:3, > from drivers/gpu/drm//nouveau/include/nvkm/subdev/clk.h:3, > from drivers/gpu/drm//nouveau/nvkm/subdev/clk/priv.h:4, > from drivers/gpu/drm//nouveau/nvkm/subdev/clk/gk20a.c:26: > drivers/gpu/drm//nouveau/nvkm/subdev/clk/gk20a.c: In function 'gk20a_pllg_calc_rate': > include/asm-generic/div64.h:217:28: warning: comparison of distinct pointer types lacks a cast > (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \ > ^ This one is a driver bug too. > drivers/gpu/drm//nouveau/nvkm/subdev/clk/gk20a.c:144:2: note: in expansion of macro 'do_div' > do_div(rate, divider); > ^ > drivers/gpu/drm//nouveau/nvkm/subdev/clk/gk20a.c:144:2: warning: right shift count >= width of type > In file included from include/linux/kernel.h:136:0, > from include/linux/list.h:8, > from include/linux/preempt.h:10, > from include/linux/spinlock.h:50, > from include/linux/mmzone.h:7, > from include/linux/gfp.h:5, > from include/linux/slab.h:14, > from drivers/gpu/drm//nouveau/include/nvif/os.h:5, > from drivers/gpu/drm//nouveau/include/nvkm/core/os.h:3, > from drivers/gpu/drm//nouveau/include/nvkm/core/event.h:3, > from drivers/gpu/drm//nouveau/include/nvkm/core/device.h:3, > from drivers/gpu/drm//nouveau/include/nvkm/core/subdev.h:3, > from drivers/gpu/drm//nouveau/include/nvkm/subdev/clk.h:3, > from drivers/gpu/drm//nouveau/nvkm/subdev/clk/priv.h:4, > from drivers/gpu/drm//nouveau/nvkm/subdev/clk/gk20a.c:26: > >> arch/arm/include/asm/div64.h:49:20: warning: passing argument 1 of '__div64_32' from incompatible pointer type > #define __div64_32 __div64_32 > ^ > >> include/asm-generic/div64.h:235:11: note: in expansion of macro '__div64_32' > __rem = __div64_32(&(n), __base); \ > ^ > drivers/gpu/drm//nouveau/nvkm/subdev/clk/gk20a.c:144:2: note: in expansion of macro 'do_div' > do_div(rate, divider); > ^ > arch/arm/include/asm/div64.h:32:24: note: expected 'uint64_t *' but argument is of type 'u32 *' > static inline uint32_t __div64_32(uint64_t *n, uint32_t base) > ^ > > vim +/do_div +99 drivers/clk/imx/clk-pllv1.c > > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 @1 #include <linux/clk-provider.h> > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 2 #include <linux/io.h> > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 3 #include <linux/slab.h> > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 4 #include <linux/kernel.h> > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 5 #include <linux/err.h> > 3a84d17b arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 6 > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 7 #include "clk.h" > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 8 > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 9 /** > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 10 * pll v1 > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 11 * > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 12 * @clk_hw clock source > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 13 * @parent the parent clock name > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 14 * @base base address of pll registers > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 15 * > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 16 * PLL clock version 1, found on i.MX1/21/25/27/31/35 > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 17 */ > a5947903 arch/arm/mach-imx/clk-pllv1.c Alexander Shiyan 2013-11-10 18 > a5947903 arch/arm/mach-imx/clk-pllv1.c Alexander Shiyan 2013-11-10 19 #define MFN_BITS (10) > a5947903 arch/arm/mach-imx/clk-pllv1.c Alexander Shiyan 2013-11-10 20 #define MFN_SIGN (BIT(MFN_BITS - 1)) > a5947903 arch/arm/mach-imx/clk-pllv1.c Alexander Shiyan 2013-11-10 21 #define MFN_MASK (MFN_SIGN - 1) > a5947903 arch/arm/mach-imx/clk-pllv1.c Alexander Shiyan 2013-11-10 22 > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 23 struct clk_pllv1 { > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 24 struct clk_hw hw; > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 25 void __iomem *base; > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 26 enum imx_pllv1_type type; > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 27 }; > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 28 > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 29 #define to_clk_pllv1(clk) (container_of(clk, struct clk_pllv1, clk)) > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 30 > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 31 static inline bool is_imx1_pllv1(struct clk_pllv1 *pll) > a5947903 arch/arm/mach-imx/clk-pllv1.c Alexander Shiyan 2013-11-10 32 { > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 33 return pll->type == IMX_PLLV1_IMX1; > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 34 } > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 35 > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 36 static inline bool is_imx21_pllv1(struct clk_pllv1 *pll) > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 37 { > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 38 return pll->type == IMX_PLLV1_IMX21; > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 39 } > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 40 > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 41 static inline bool is_imx27_pllv1(struct clk_pllv1 *pll) > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 42 { > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 43 return pll->type == IMX_PLLV1_IMX27; > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 44 } > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 45 > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 46 static inline bool mfn_is_negative(struct clk_pllv1 *pll, unsigned int mfn) > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 47 { > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 48 return !is_imx1_pllv1(pll) && !is_imx21_pllv1(pll) && (mfn & MFN_SIGN); > a5947903 arch/arm/mach-imx/clk-pllv1.c Alexander Shiyan 2013-11-10 49 } > a5947903 arch/arm/mach-imx/clk-pllv1.c Alexander Shiyan 2013-11-10 50 > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 51 static unsigned long clk_pllv1_recalc_rate(struct clk_hw *hw, > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 52 unsigned long parent_rate) > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 53 { > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 54 struct clk_pllv1 *pll = to_clk_pllv1(hw); > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 55 long long ll; > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 56 int mfn_abs; > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 57 unsigned int mfi, mfn, mfd, pd; > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 58 u32 reg; > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 59 unsigned long rate; > 2af9e6db arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-03-09 60 > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 61 reg = readl(pll->base); > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 62 > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 63 /* > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 64 * Get the resulting clock rate from a PLL register value and the input > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 65 * frequency. PLLs with this register layout can be found on i.MX1, > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 66 * i.MX21, i.MX27 and i,MX31 > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 67 * > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 68 * mfi + mfn / (mfd + 1) > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 69 * f = 2 * f_ref * -------------------- > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 70 * pd + 1 > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 71 */ > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 72 > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 73 mfi = (reg >> 10) & 0xf; > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 74 mfn = reg & 0x3ff; > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 75 mfd = (reg >> 16) & 0x3ff; > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 76 pd = (reg >> 26) & 0xf; > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 77 > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 78 mfi = mfi <= 5 ? 5 : mfi; > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 79 > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 80 mfn_abs = mfn; > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 81 > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 82 /* > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 83 * On all i.MXs except i.MX1 and i.MX21 mfn is a 10bit > a5947903 arch/arm/mach-imx/clk-pllv1.c Alexander Shiyan 2013-11-10 84 * 2's complements number. > a5947903 arch/arm/mach-imx/clk-pllv1.c Alexander Shiyan 2013-11-10 85 * On i.MX27 the bit 9 is the sign bit. > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 86 */ > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 87 if (mfn_is_negative(pll, mfn)) { > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 88 if (is_imx27_pllv1(pll)) > a5947903 arch/arm/mach-imx/clk-pllv1.c Alexander Shiyan 2013-11-10 89 mfn_abs = mfn & MFN_MASK; > a5947903 arch/arm/mach-imx/clk-pllv1.c Alexander Shiyan 2013-11-10 90 else > a5947903 arch/arm/mach-imx/clk-pllv1.c Alexander Shiyan 2013-11-10 91 mfn_abs = BIT(MFN_BITS) - mfn; > a5947903 arch/arm/mach-imx/clk-pllv1.c Alexander Shiyan 2013-11-10 92 } > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 93 > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 94 rate = parent_rate * 2; > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 95 rate /= pd + 1; > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 96 > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 97 ll = (unsigned long long)rate * mfn_abs; > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 98 > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 @99 do_div(ll, mfd + 1); > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 100 > 3bec5f81 arch/arm/mach-imx/clk-pllv1.c Shawn Guo 2015-04-26 101 if (mfn_is_negative(pll, mfn)) > a6dd3c81 arch/arm/mach-imx/clk-pllv1.c Sascha Hauer 2012-09-11 102 ll = -ll; > > :::::: The code at line 99 was first introduced by commit > :::::: a6dd3c812e774b876d440c1a9ec1bd0fd5659390 ARM: i.MX clk pllv1: move mxc_decode_pll code to its user > > :::::: TO: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> > :::::: CC: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation > -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
