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[209.132.180.67]) by mx.google.com with ESMTP id m1si4426887ejd.305.2019.11.08.13.18.18; Fri, 08 Nov 2019 13:18:41 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732817AbfKHVPQ (ORCPT + 99 others); Fri, 8 Nov 2019 16:15:16 -0500 Received: from mout.kundenserver.de ([217.72.192.74]:36111 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731743AbfKHVPP (ORCPT ); Fri, 8 Nov 2019 16:15:15 -0500 Received: from threadripper.lan ([149.172.19.189]) by mrelayeu.kundenserver.de (mreue107 [212.227.15.145]) with ESMTPA (Nemesis) id 1M2ON6-1iUpU10hYc-003rip; Fri, 08 Nov 2019 22:14:55 +0100 From: Arnd Bergmann To: y2038@lists.linaro.org, Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Alexander Viro , "Rafael J. Wysocki" , Pavel Machek , Len Brown , John Stultz , Thomas Gleixner Cc: linux-kernel@vger.kernel.org, Arnd Bergmann , Stephen Boyd , Christian Brauner , linuxppc-dev@lists.ozlabs.org, linux-fsdevel@vger.kernel.org, linux-api@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH 12/23] y2038: syscalls: change remaining timeval to __kernel_old_timeval Date: Fri, 8 Nov 2019 22:12:11 +0100 Message-Id: <20191108211323.1806194-3-arnd@arndb.de> X-Mailer: git-send-email 2.20.0 In-Reply-To: <20191108210236.1296047-1-arnd@arndb.de> References: <20191108210236.1296047-1-arnd@arndb.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Provags-ID: V03:K1:L5MXbYk31wOXwoBz972x9kuLeZIEuu+iSFnMEMxFsvJUSyMZcA5 KJDBtqG97dBLfawBhDt9kcwvJVvuwOQ596SiSyGadN0etYEY4mHIcslPBMvhPxUeiASTwtE 4HuvheJuT5lTmRZ2iJaCMwpj7E00u6pChQLfyfcNCai0JwzuRda/z3lx8uBV/SGvrx3+2hE v3L/VsxyHbSgyY9NiNRbA== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:vzi6yde6b/Y=:ccalfERfsUEw5gS+vbBk40 2pXxs9573zedbV97jmVac2Hd1aJR6bl5MYGgvW2fYC9hDjckcs4/aqqNfk4Mty8m6lYfGAHO6 5js6bYy+kzIpVkubVkF9YsvcO3ZZHee5W4p2c9Ysx8xD9jjQpDoqBDPEyJbcwiHVaomVoj4bE 0WD+6FuQCdvgxREISAkqwJlb7+QF/dBFT5Q6/ZyOfOqXzoH71fKgCQj7KwaSCEuuGd/A4h0aY 6Px9rTYGebyI6et4h4wCRgTVuMjRrFPuLUQVKDm7opN+aIJUKcMLqYzSwcycK6xPujokgupip UXhzNc46PDF4VGfT0TFv05d/rkqfwnz6IMvFI43cxdKN2jBDCPHqDYaF4IHjuLLfS8epEvDca dW+YWaydV+DP4dNGpCCUMQ69Gry4TGR1rdE9Hv2g3+tgymMpoiN+PFS7yccDBHBtFgWMhB7uD nRUGZXnkIc6ZlbhTmgTEDHv923hP6eoj461EDqMH6o17vOdPIUYLbRBEZdaWpppISWbfNJHFy o+CsXM9xLVJ41r2GUsD3OlN9wDF57IkUMTdSP1TPHpLTg8tQt1KSx0liPDIBCsBjmOS27/8Gy YgGivN27m6iSpVffP4eDtveIo4c6TU77s/QCmzH6pGzD8y/KWU0GmXMaOCWYHQLrZK4zuAMD2 +MbnM1nHjqbdI/+v4TPx6KLmftPRa6CP/2wO63/IlA1+yYihaDygxL7/ut0w6qZP/pcCHnD+P 76rVbneRg0ADgYWIhuBGfGV4KDJJFcgrX/+bta7Ng8mQNlm2w5i0AvGMpldh8EN8mGS0OfNcU mEmUPpx/EDdJ828L7cfx83d8ZMGPIKWUYJgwb5MpOxSoVtQw/G3/nESpKWbxtGOyPejhCQcmE 1qC5qhTto/Pmq0rO3eWQ== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org All of the remaining syscalls that pass a timeval (gettimeofday, utime, futimesat) can trivially be changed to pass a __kernel_old_timeval instead, which has a compatible layout, but avoids ambiguity with the timeval type in user space. Signed-off-by: Arnd Bergmann --- arch/powerpc/include/asm/asm-prototypes.h | 3 ++- arch/powerpc/kernel/syscalls.c | 4 ++-- fs/select.c | 10 +++++----- fs/utimes.c | 8 ++++---- include/linux/syscalls.h | 10 +++++----- kernel/power/power.h | 2 +- kernel/time/time.c | 2 +- 7 files changed, 20 insertions(+), 19 deletions(-) diff --git a/arch/powerpc/include/asm/asm-prototypes.h b/arch/powerpc/include/asm/asm-prototypes.h index 8561498e653c..2c25dc079cb9 100644 --- a/arch/powerpc/include/asm/asm-prototypes.h +++ b/arch/powerpc/include/asm/asm-prototypes.h @@ -92,7 +92,8 @@ long sys_swapcontext(struct ucontext __user *old_ctx, long sys_debug_setcontext(struct ucontext __user *ctx, int ndbg, struct sig_dbg_op __user *dbg); int -ppc_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp, struct timeval __user *tvp); +ppc_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp, + struct __kernel_old_timeval __user *tvp); unsigned long __init early_init(unsigned long dt_ptr); void __init machine_init(u64 dt_ptr); #endif diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c index 3bfb3888e897..078608ec2e92 100644 --- a/arch/powerpc/kernel/syscalls.c +++ b/arch/powerpc/kernel/syscalls.c @@ -79,7 +79,7 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, size_t, len, * sys_select() with the appropriate args. -- Cort */ int -ppc_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp, struct timeval __user *tvp) +ppc_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp, struct __kernel_old_timeval __user *tvp) { if ( (unsigned long)n >= 4096 ) { @@ -89,7 +89,7 @@ ppc_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp, s || __get_user(inp, ((fd_set __user * __user *)(buffer+1))) || __get_user(outp, ((fd_set __user * __user *)(buffer+2))) || __get_user(exp, ((fd_set __user * __user *)(buffer+3))) - || __get_user(tvp, ((struct timeval __user * __user *)(buffer+4)))) + || __get_user(tvp, ((struct __kernel_old_timeval __user * __user *)(buffer+4)))) return -EFAULT; } return sys_select(n, inp, outp, exp, tvp); diff --git a/fs/select.c b/fs/select.c index 53a0c149f528..11d0285d46b7 100644 --- a/fs/select.c +++ b/fs/select.c @@ -321,7 +321,7 @@ static int poll_select_finish(struct timespec64 *end_time, switch (pt_type) { case PT_TIMEVAL: { - struct timeval rtv; + struct __kernel_old_timeval rtv; if (sizeof(rtv) > sizeof(rtv.tv_sec) + sizeof(rtv.tv_usec)) memset(&rtv, 0, sizeof(rtv)); @@ -698,10 +698,10 @@ int core_sys_select(int n, fd_set __user *inp, fd_set __user *outp, } static int kern_select(int n, fd_set __user *inp, fd_set __user *outp, - fd_set __user *exp, struct timeval __user *tvp) + fd_set __user *exp, struct __kernel_old_timeval __user *tvp) { struct timespec64 end_time, *to = NULL; - struct timeval tv; + struct __kernel_old_timeval tv; int ret; if (tvp) { @@ -720,7 +720,7 @@ static int kern_select(int n, fd_set __user *inp, fd_set __user *outp, } SYSCALL_DEFINE5(select, int, n, fd_set __user *, inp, fd_set __user *, outp, - fd_set __user *, exp, struct timeval __user *, tvp) + fd_set __user *, exp, struct __kernel_old_timeval __user *, tvp) { return kern_select(n, inp, outp, exp, tvp); } @@ -810,7 +810,7 @@ SYSCALL_DEFINE6(pselect6_time32, int, n, fd_set __user *, inp, fd_set __user *, struct sel_arg_struct { unsigned long n; fd_set __user *inp, *outp, *exp; - struct timeval __user *tvp; + struct __kernel_old_timeval __user *tvp; }; SYSCALL_DEFINE1(old_select, struct sel_arg_struct __user *, arg) diff --git a/fs/utimes.c b/fs/utimes.c index 1ba3f7883870..c952b6b3d8a0 100644 --- a/fs/utimes.c +++ b/fs/utimes.c @@ -161,9 +161,9 @@ SYSCALL_DEFINE4(utimensat, int, dfd, const char __user *, filename, * utimensat() instead. */ static long do_futimesat(int dfd, const char __user *filename, - struct timeval __user *utimes) + struct __kernel_old_timeval __user *utimes) { - struct timeval times[2]; + struct __kernel_old_timeval times[2]; struct timespec64 tstimes[2]; if (utimes) { @@ -190,13 +190,13 @@ static long do_futimesat(int dfd, const char __user *filename, SYSCALL_DEFINE3(futimesat, int, dfd, const char __user *, filename, - struct timeval __user *, utimes) + struct __kernel_old_timeval __user *, utimes) { return do_futimesat(dfd, filename, utimes); } SYSCALL_DEFINE2(utimes, char __user *, filename, - struct timeval __user *, utimes) + struct __kernel_old_timeval __user *, utimes) { return do_futimesat(AT_FDCWD, filename, utimes); } diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 2f27bc9d5ef0..e665920fa359 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -51,7 +51,7 @@ struct statx; struct __sysctl_args; struct sysinfo; struct timespec; -struct timeval; +struct __kernel_old_timeval; struct __kernel_timex; struct timezone; struct tms; @@ -732,7 +732,7 @@ asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache); /* kernel/time.c */ -asmlinkage long sys_gettimeofday(struct timeval __user *tv, +asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv, struct timezone __user *tz); asmlinkage long sys_settimeofday(struct timeval __user *tv, struct timezone __user *tz); @@ -1082,9 +1082,9 @@ asmlinkage long sys_time32(old_time32_t __user *tloc); asmlinkage long sys_utime(char __user *filename, struct utimbuf __user *times); asmlinkage long sys_utimes(char __user *filename, - struct timeval __user *utimes); + struct __kernel_old_timeval __user *utimes); asmlinkage long sys_futimesat(int dfd, const char __user *filename, - struct timeval __user *utimes); + struct __kernel_old_timeval __user *utimes); #endif asmlinkage long sys_futimesat_time32(unsigned int dfd, const char __user *filename, @@ -1098,7 +1098,7 @@ asmlinkage long sys_getdents(unsigned int fd, struct linux_dirent __user *dirent, unsigned int count); asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp, - fd_set __user *exp, struct timeval __user *tvp); + fd_set __user *exp, struct __kernel_old_timeval __user *tvp); asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds, int timeout); asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events, diff --git a/kernel/power/power.h b/kernel/power/power.h index 44bee462ff57..7cdc64dc2373 100644 --- a/kernel/power/power.h +++ b/kernel/power/power.h @@ -179,7 +179,7 @@ extern void swsusp_close(fmode_t); extern int swsusp_unmark(void); #endif -struct timeval; +struct __kernel_old_timeval; /* kernel/power/swsusp.c */ extern void swsusp_show_speed(ktime_t, ktime_t, unsigned int, char *); diff --git a/kernel/time/time.c b/kernel/time/time.c index 7eba7c9a7e3e..bc114f0be8f1 100644 --- a/kernel/time/time.c +++ b/kernel/time/time.c @@ -137,7 +137,7 @@ SYSCALL_DEFINE1(stime32, old_time32_t __user *, tptr) #endif /* __ARCH_WANT_SYS_TIME32 */ #endif -SYSCALL_DEFINE2(gettimeofday, struct timeval __user *, tv, +SYSCALL_DEFINE2(gettimeofday, struct __kernel_old_timeval __user *, tv, struct timezone __user *, tz) { if (likely(tv != NULL)) { -- 2.20.0