linux-kernel - [PATCH v2] x86/mm/fault.c: Convert to use vm_fault

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 10 Jan 2019 00:07:42 +0530
From:   Souptick Joarder <jrdr.linux@...il.com>
To:     akpm@...ux-foundation.org
Cc:     dave.hansen@...ux.intel.com, luto@...nel.org, peterz@...radead.org,
        tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, hpa@...or.com,
        x86@...nel.org, linux-kernel@...r.kernel.org, willy@...radead.org
Subject: [PATCH v2] x86/mm/fault.c: Convert to use vm_fault_t

Convert to use vm_fault_t type for last argument of do_sigbus().

kbuild reported a warning during testing of final vm_fault_t patch
integrated in mm tree.

[auto build test WARNING on linus/master]
[also build test WARNING on v5.0-rc1 next-20190109]
[if your patch is applied to the wrong git tree, please drop us a note
to help improve the system]

https://github.com/0day-ci/linux/commits/Souptick-Joarder/
mm-Create-the-new-vm_fault_t-type/20190109-154216

All warnings:

arch/x86/mm/fault.c:1051:39: warning: restricted vm_fault_t degrades to integer
arch/x86/mm/fault.c:1057:29: warning: restricted vm_fault_t degrades to integer
arch/x86/mm/fault.c:1059:29: warning: restricted vm_fault_t degrades to integer
arch/x86/mm/fault.c:1094:62: warning: incorrect type in argument 4 (different base types)
arch/x86/mm/fault.c:1094:62:    expected unsigned int fault
arch/x86/mm/fault.c:1094:62:    got restricted vm_fault_t [usertype] fault

This patch has fixed the warnings.

Signed-off-by: Souptick Joarder <jrdr.linux@...il.com>
---
v2: updated the change log.

 arch/x86/mm/fault.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 2ff25ad..dea3725 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -1031,7 +1031,7 @@ static inline bool bad_area_access_from_pkeys(unsigned long error_code,
 
 static void
 do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address,
-	  unsigned int fault)
+	  vm_fault_t fault)
 {
 	struct task_struct *tsk = current;
 
-- 
1.9.1