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Rule INT31-C requires that integer conversions do not result in lost or misinterpreted data. Rule INT32-C requires that operations on signed integers do not result in overflow. Rule EXP34-C requires that pointer dereferences never include NULL. Fix violations of these types in nvgpu.common.utils. JIRA NVGPU-3868 Change-Id: Ifcf4bc6536ca2df2adcb53b40b3e58316cc3e457 Signed-off-by: Philip Elcan <pelcan@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/2168576 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Vinod Gopalakrishnakurup <vinodg@nvidia.com> Reviewed-by: Nitin Kumbhar <nkumbhar@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
/*
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* Copyright (c) 2017-2019, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <nvgpu/enabled.h>
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#include <nvgpu/bitops.h>
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#include <nvgpu/gk20a.h>
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#include <nvgpu/safe_ops.h>
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int nvgpu_init_enabled_flags(struct gk20a *g)
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{
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/*
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* Zero all flags initially. Flags that should be set to non-zero states
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* can be done so during driver init.
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*/
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g->enabled_flags = nvgpu_kzalloc(g,
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BITS_TO_LONGS(NVGPU_MAX_ENABLED_BITS) *
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sizeof(unsigned long));
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if (g->enabled_flags == NULL) {
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return -ENOMEM;
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}
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return 0;
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}
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/*
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* Call this on driver shutdown!
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*/
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void nvgpu_free_enabled_flags(struct gk20a *g)
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{
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nvgpu_kfree(g, g->enabled_flags);
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}
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bool nvgpu_is_enabled(struct gk20a *g, u32 flag)
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{
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return nvgpu_test_bit(flag, g->enabled_flags);
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}
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void nvgpu_set_enabled(struct gk20a *g, u32 flag, bool state)
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{
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if (state) {
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nvgpu_set_bit(flag, g->enabled_flags);
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} else {
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nvgpu_clear_bit(flag, g->enabled_flags);
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}
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}
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