Revision 0c18f29aae7ce3dadd26d8ee3505d07cc982df75 authored by Mimi Zohar on 22 June 2021, 11:36:41 UTC, committed by Linus Torvalds on 22 June 2021, 18:13:19 UTC
Irrespective as to whether CONFIG_MODULE_SIG is configured, specifying "module.sig_enforce=1" on the boot command line sets "sig_enforce". Only allow "sig_enforce" to be set when CONFIG_MODULE_SIG is configured. This patch makes the presence of /sys/module/module/parameters/sig_enforce dependent on CONFIG_MODULE_SIG=y. Fixes: fda784e50aac ("module: export module signature enforcement status") Reported-by: Nayna Jain <nayna@linux.ibm.com> Tested-by: Mimi Zohar <zohar@linux.ibm.com> Tested-by: Jessica Yu <jeyu@kernel.org> Signed-off-by: Mimi Zohar <zohar@linux.ibm.com> Signed-off-by: Jessica Yu <jeyu@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent a96bfed
sp_rint.c
// SPDX-License-Identifier: GPL-2.0-only
/* IEEE754 floating point arithmetic
* single precision
*/
/*
* MIPS floating point support
* Copyright (C) 1994-2000 Algorithmics Ltd.
* Copyright (C) 2017 Imagination Technologies, Ltd.
* Author: Aleksandar Markovic <aleksandar.markovic@imgtec.com>
*/
#include "ieee754sp.h"
union ieee754sp ieee754sp_rint(union ieee754sp x)
{
union ieee754sp ret;
u32 residue;
int sticky;
int round;
int odd;
COMPXDP; /* <-- DP needed for 64-bit mantissa tmp */
ieee754_clearcx();
EXPLODEXSP;
FLUSHXSP;
if (xc == IEEE754_CLASS_SNAN)
return ieee754sp_nanxcpt(x);
if ((xc == IEEE754_CLASS_QNAN) ||
(xc == IEEE754_CLASS_INF) ||
(xc == IEEE754_CLASS_ZERO))
return x;
if (xe >= SP_FBITS)
return x;
if (xe < -1) {
residue = xm;
round = 0;
sticky = residue != 0;
xm = 0;
} else {
residue = xm << (xe + 1);
residue <<= 31 - SP_FBITS;
round = (residue >> 31) != 0;
sticky = (residue << 1) != 0;
xm >>= SP_FBITS - xe;
}
odd = (xm & 0x1) != 0x0;
switch (ieee754_csr.rm) {
case FPU_CSR_RN: /* toward nearest */
if (round && (sticky || odd))
xm++;
break;
case FPU_CSR_RZ: /* toward zero */
break;
case FPU_CSR_RU: /* toward +infinity */
if ((round || sticky) && !xs)
xm++;
break;
case FPU_CSR_RD: /* toward -infinity */
if ((round || sticky) && xs)
xm++;
break;
}
if (round || sticky)
ieee754_setcx(IEEE754_INEXACT);
ret = ieee754sp_flong(xm);
SPSIGN(ret) = xs;
return ret;
}
![swh spinner](/static/img/swh-spinner.gif)
Computing file changes ...